[ { "id": 24151, "name": "Lago", "slug": "lago", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/29939f1cfbd3fe315d3ded8f43c33775de6b9c89.png", "website": "https://www.getlago.com/", "all_locations": "San Francisco, CA, USA", "long_description": "At Lago, we're on a mission to make billing simpler, more transparent, and more adaptable for SaaS companies.\r\n\r\nAs the leading open-source billing platform, we empower businesses to build flexible pricing models and scale with confidence. We've raised over $22 million in funding from top-tier investors including Y Combinator and FirstMark, reflecting strong confidence in our vision and growth.\r\n\r\nOur platform has garnered over 9,000 stars on GitHub, a testament to our active and growing developer community. Companies such as PayPal, Synthesia and Mistral.ai choose Lago for their billing.\r\n\r\nWe're a team of ambitious, focused individuals who work together to solve hard problems with excellence and accountability. At Lago, we value reliability and proactivity - we trust each other to own tasks, drive them to completion, and adapt quickly. While we encourage you to try fast and \"fail fast\", we also expect you to learn fast: make mistakes, but don't make the same one twice.\r\n\r\nIf you're excited by challenges and want to grow alongside a high-performing, supportive team, this is the place for you.", "one_liner": "The AI Native Billing Platform", "team_size": 27, "industry": "B2B", "subindustry": "B2B -> Finance and Accounting", "launched_at": 1629092704, "tags": [ "FinOps", "Fintech", "SaaS", "Open Source", "Billing" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Summer 2021", "status": "Active", "industries": [ "B2B", "Finance and Accounting" ], "regions": [ "United States of America", "America / Canada", "Remote", "Partly Remote" ], "stage": "Growth", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": null, "url": "https://www.ycombinator.com/companies/lago", "api": "https://devasheeshg.github.io/yc-api/batches/summer-2021/lago.json", "year_founded": 2021, "city": "San Francisco", "country": "US", "linkedin_url": "https://www.linkedin.com/company/getlago/about", "x_url": "https://twitter.com/byAnhtho", "fb_url": null, "cb_url": null, "github_url": "https://github.com/getlago", "logo_url": "https://bookface-images.s3.amazonaws.com/small_logos/29939f1cfbd3fe315d3ded8f43c33775de6b9c89.png", "app_video_url": null, "dday_video_url": null, "company_photos": [], "primary_partner": { "name": "Nicolas Dessaigne", "url": "https://www.ycombinator.com/people/nicolas-dessaigne" }, "founders": [ { "user_id": 660858, "full_name": "Anh-Tho CHUONG", "title": "Founder", "founder_bio": "Anh-Tho leads the business side of Lago. \nShe genuinely thinks \"SaaS is beautiful\" and therefore spent 10 years in go-to-market and product led growth roles in B2B SaaS startups.\nAfter a stint in consulting at McKinsey & Co, she joined Mailjet (acq. by Mailgun) as Head of Strategic projects. \nShe then launched Weebly (YC W07) in France, before becoming the 1st employee at Qonto, one of the European fintech unicorns.\nDuring her tenure as VP Growth, she grew ARR from 0 to dozens of millions.", "is_active": true, "linkedin_url": "https://www.linkedin.com/in/anhthochuong/", "x_url": "https://twitter.com/byAnhtho", "avatar_thumb_url": "https://bookface-images.s3.us-west-2.amazonaws.com/avatars/3a680ea33d82c7896e8ba2e6b7d06285d5353207.jpg" }, { "user_id": 726368, "full_name": "Raffi SARKISSIAN", "title": "Founder", "founder_bio": "A 2nd time founder, Raffi is a Growth Product & Data expert, and leads Product at Lago.\nHe led Data Operations at Qonto, one of the fintech unicorns in Europe.\n", "is_active": true, "linkedin_url": "https://www.linkedin.com/in/sarkissianraffi", "x_url": "", "avatar_thumb_url": "https://bookface-images.s3.us-west-2.amazonaws.com/avatars/ba4bf82817bb23e76f1a461d1ef27ccb1096577d.jpg" } ], "jobs": [ { "id": 95775, "title": "Engineering Squad Lead", "url": "https://www.ycombinator.com/companies/lago/jobs/wvqueqB-engineering-squad-lead", "location": "FR / ES / DE / PT / IT / Remote (FR; ES; DE; PT; IT)", "type": "Full-time", "role": "Engineering", "role_type": "Full stack", "salary_range": "€90K - €120K EUR", "equity_range": "", "experience": "5+ years", "visa": "US citizenship/visa not required", "skills": [] } ], "news": [ { "title": "The open source billing startup that wants to take on Stripe | Sifted", "url": "https://sifted.eu/articles/open-source-billing-startup-lago-news", "date": "Mar 14, 2024" }, { "title": "Lago, a Paris-based open source billing platform, banks $22M | TechCrunch", "url": "https://techcrunch.com/2024/03/14/lago-a-paris-based-open-source-billing-platform-banks-22m/", "date": "Mar 14, 2024" }, { "title": "French Tech : Anh-Tho Chuong, l'entrepreneuse française à fond dans l'open source | Les Echos", "url": "https://www.lesechos.fr/start-up/portraits/french-tech-anh-tho-chuong-lentrepreneuse-francaise-a-fond-dans-lopen-source-2082641", "date": "Mar 14, 2024" }, { "title": "Lago: Buzzy Y Combinator-Backed Billing Startup Raises $22 Million", "url": "https://www.businessinsider.com/lago-buzzy-billing-startup-raises-22m-vc-investors-us-expansion-2024-3", "date": "Mar 14, 2024" }, { "title": "Product Hunt: Lago is Product of the day, and of the week", "url": "https://www.producthunt.com/products/lago#lago", "date": "Apr 03, 2023" } ], "launches": [] }, { "id": 25644, "name": "Kable", "slug": "kable", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/3095b0459d18c549430410b2b290965dd29372c0.png", "website": "https://kable.io", "all_locations": "Los Angeles, CA, USA; Santa Monica, CA, USA; Remote", "long_description": "Kable makes it easy for developers to add usage-based billing, invoicing, analytics, and authentication to their API products with just three lines of code.\r\n\r\nWe help API companies bring their products to market faster, more securely, and with flexible billing tools that help businesses scale. We provide everything needed to create a delightful experience for developer communities and to optimize revenue while giving time back to engineering teams to focus on what matters most.", "one_liner": "Usage-based billing for API companies", "team_size": null, "industry": "B2B", "subindustry": "B2B -> Finance and Accounting", "launched_at": 1642571289, "tags": [ "Developer Tools", "API", "Billing" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Winter 2022", "status": "Inactive", "industries": [ "B2B", "Finance and Accounting" ], "regions": [ "United States of America", "America / Canada", "Remote", "Fully Remote" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": null, "url": "https://www.ycombinator.com/companies/kable", "api": "https://devasheeshg.github.io/yc-api/batches/winter-2022/kable.json", "year_founded": 2021, "city": "Los Angeles", "country": "US", "linkedin_url": "https://www.linkedin.com/company/kable-io", "x_url": "https://twitter.com/kable_io", "fb_url": null, "cb_url": "https://www.crunchbase.com/organization/kable-3b17", "github_url": null, "logo_url": "https://bookface-images.s3.amazonaws.com/small_logos/3095b0459d18c549430410b2b290965dd29372c0.png", "app_video_url": null, "dday_video_url": null, "company_photos": [], "primary_partner": null, "founders": [ { "user_id": 797689, "full_name": "Adam Sommer", "title": "Founder", "founder_bio": "Adam Sommer is the founder and CEO of Kable. Before starting Kable, Adam spent 5 years as the billing lead at Hulu as both an Engineer and Product Manager. He lives in New York and graduated with degrees in Computer Science and Public Policy from Duke University.", "is_active": false, "linkedin_url": "https://www.linkedin.com/in/adam-d-sommer", "x_url": "https://twitter.com/adamdsommer", "avatar_thumb_url": "https://bookface-images.s3.us-west-2.amazonaws.com/avatars/2ffeade91eea53b5826c150457d3394cbe5157b3.jpg" } ], "jobs": [], "news": [ { "title": "Announcing our $2.65MM seed round led by Matrix Partners", "url": "https://www.kable.io/blog/announcing-our-2-65mm-seed-round-led-by-matrix-partners", "date": "Apr 28, 2022" } ], "launches": [] }, { "id": 28869, "name": "Health Harbor", "slug": "health-harbor", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/707952491ce6520207a9fc042912ea6190fc34a5.png", "website": "https://healthharbor.co/", "all_locations": "San Francisco, CA, USA", "long_description": "We use generative AI to call insurance on behalf of healthcare clinics. We save clinics up to 40 hours of calls every week over existing outsourced human solutions. \r\n\r\nCompared to the existing solutions for benefits verifications: \r\n- We're faster -- by default, we have a turnaround of 24 hours compared to typically a 3 day turnaround for competitors\r\n- We can reach more payors -- as long as they have a phone line, we can support calling them for benefits. There's quite a few payors in both medical and dental (e.g. Seledent) that have yet to offer a digital retrieval of benefits\r\n- We're reliable and consistent -- there is no person-to-person variation or question skipping when it comes to working with software\r\n", "one_liner": "Using generative AI to call insurance for healthcare clinics", "team_size": 4, "industry": "Healthcare", "subindustry": "Healthcare -> Healthcare IT", "launched_at": 1689790147, "tags": [ "SaaS", "B2B", "Healthcare IT", "Billing", "AI" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Summer 2023", "status": "Active", "industries": [ "Healthcare", "Healthcare IT" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": null, "url": "https://www.ycombinator.com/companies/health-harbor", "api": "https://devasheeshg.github.io/yc-api/batches/summer-2023/health-harbor.json", "year_founded": 2023, "city": "San Francisco", "country": "US", "linkedin_url": "https://www.linkedin.com/company/health-harbor", "x_url": "https://twitter.com/healthharbor_us", "fb_url": "https://www.facebook.com/profile.php?id=100095138463726", "cb_url": "https://www.crunchbase.com/organization/health-harbor", "github_url": "https://github.com/Health-Harbor", "logo_url": "https://bookface-images.s3.amazonaws.com/small_logos/707952491ce6520207a9fc042912ea6190fc34a5.png", "app_video_url": null, "dday_video_url": null, "company_photos": [ "https://bookface-images.s3.us-west-2.amazonaws.com/attachments/40a121bafc0e5a167f94bf0b024b94c3c290bf7b.png" ], "primary_partner": null, "founders": [ { "user_id": 437540, "full_name": "Alan Liu", "title": "Founder/CEO", "founder_bio": "Alan is the CEO and co-founder of Health Harbor. As a technical CEO, He has five years of previous software experience in AI at Meta and Nuro. While building a hearing aid for himself at Yale, his experiences with medical insurance shaped his conviction to improve the billing process for doctors and patients. Outside of Health Harbor, Alan is an aspiring sushi chef. ", "is_active": true, "linkedin_url": "https://www.linkedin.com/in/alanliu96", "x_url": "https://twitter.com/AlanLiu96", "avatar_thumb_url": "https://bookface-images.s3.us-west-2.amazonaws.com/avatars/cec51b2fd22ea307b50a347e18c115a3842f48a0.jpg" } ], "jobs": [ { "id": 72444, "title": "Founding Engineer . ", "url": "https://www.ycombinator.com/companies/health-harbor/jobs/n3sggls-founding-engineer", "location": "San Francisco, CA, US", "type": "Full-time", "role": "Engineering", "role_type": "Backend", "salary_range": "$100K - $170K", "equity_range": "0.25% - 1.00%", "experience": "3+ years", "visa": "US citizen/visa only", "skills": [ "Google Cloud", "Python" ] } ], "news": [], "launches": [ { "id": 73410, "title": "Health Harbor - Automated billing for private medical practices", "tagline": "Never call insurance again.", "body": "### **Hey everyone! We are Nathan, Alan, and Gloria from Health Harbor.**\n\n**TL;DR:** Private practices spend hours every week talking with insurance trying to determine fee coverage so patients don't end up with a surprise bill. Health Harbor uses AI to automate billing for private practices by having an AI call insurance on their behalf. Check us out: [https://healthharbor.co](https://healthharbor.co/)\n\n![uploaded image](/media/?type=post&id=73410&key=user_uploads/1322783/392081ad-49f0-4086-a585-4d1df7292820)\n\n### **The Problem**\n\nImagine spending almost 100 million hours on the phone with medical insurance. Trust us, medical providers can. Over 230,000 private practices in the US spend more than 8 hours every week sitting on the line with insurance trying to determine the amount insurance will cover.\n\n### **The Solution**\n\nHealth Harbor relieves doctors’ offices from needing to call insurance. Instead they can simply submit requests through Health Harbor’s HIPAA certified portal.\n\n![uploaded image](/media/?type=post&id=73410&key=user_uploads/1322783/81fa57fd-de79-4030-9fe3-8e8d20fa99ee)\n\nFurthermore, by enabling admin to quickly request coverage on specific procedure codes, Health Harbor allows physicians to perform more procedures in fewer visits thus compressing revenue cycles from 4 weeks to 1 week.\n\n### **The Team**\n\nWe are Nathan, Alan and Gloria. Nathan comes from an early stage startup, Liminal Sciences, that went public with Hyperfine four years after its inception where he aligned the team on product strategy and built the product as a designer and software engineer. In Alan’s past life, he wrote software for AI systems like speaker identification at Meta’s Portal and prediction of occluded objects at Nuro. As for Gloria, she planned multi-year growth trajectories while at Bain and the Gates Foundation. \n\n### **The Ask**\n\n1. Customer Intros: Please reach out to us at [founders@healthharbor.co](mailto:founders@healthharbor.co)\n * If you currently call health insurance,\n * If you personally know anyone who complains about calling insurance (including dentists and any other private practice physicians),\n * If you know anyone in private equity firms that manage private practices.\n2. Follow us on [LinkedIn](https://www.linkedin.com/company/health-harbor/)", "url": "https://www.ycombinator.com/launches/J62-health-harbor-automated-billing-for-private-medical-practices", "votes": 29, "created_at": "2023-07-26T15:36:05.000Z" } ] }, { "id": 29085, "name": "Quill Bills", "slug": "quill-bills", "former_names": [ "Quill AI" ], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/7ad90ff298c085246c8c2af38a348e6f2c92f338.png", "website": "https://quillbills.com", "all_locations": "San Francisco, CA, USA", "long_description": "Quill Bills is a medical billing company that works with healthcare providers to significantly lower billing costs and recover denied claims.\r\nOur platform performs much of a biller's job autonomously, and we sell this platform to private practice doctors and medical MSOs.", "one_liner": "AI-Powered Medical Billing", "team_size": 3, "industry": "Healthcare", "subindustry": "Healthcare -> Healthcare IT", "launched_at": 1685991991, "tags": [ "Healthcare", "Health Insurance", "Healthcare IT", "Billing", "AI" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Summer 2023", "status": "Active", "industries": [ "Healthcare", "Healthcare IT" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": null, "url": "https://www.ycombinator.com/companies/quill-bills", "api": "https://devasheeshg.github.io/yc-api/batches/summer-2023/quill-bills.json", "year_founded": 2023, "city": "San Francisco", "country": "US", "linkedin_url": "https://www.linkedin.com/company/quill-bills/", "x_url": "", "fb_url": null, "cb_url": null, "github_url": null, "logo_url": "https://bookface-images.s3.amazonaws.com/small_logos/7ad90ff298c085246c8c2af38a348e6f2c92f338.png", "app_video_url": null, "dday_video_url": null, "company_photos": [], "primary_partner": { "name": "Jared Friedman", "url": "https://www.ycombinator.com/people/jared-friedman" }, "founders": [ { "user_id": 1188332, "full_name": "Gabriel Banks", "title": "Founder", "founder_bio": "Love to touch computer all day", "is_active": true, "linkedin_url": "https://linkedin.com/in/gabriel-banks-662548230", "x_url": "", "avatar_thumb_url": "https://bookface-images.s3.us-west-2.amazonaws.com/avatars/b17765d0a8064075ceb47a40da059e4adc6c369d.jpg" }, { "user_id": 820106, "full_name": "Kartik Donepudi", "title": "Founder", "founder_bio": "Quill AI, Computer Science and Economics at MIT", "is_active": true, "linkedin_url": "https://linkedin.com/in/kartik-donepudi-763a22167", "x_url": "", "avatar_thumb_url": "https://bookface-images.s3.us-west-2.amazonaws.com/avatars/de8cc3eaeaf9cc0ebd46f5e6cc32ccd26e02df0d.jpg" } ], "jobs": [ { "id": 90846, "title": "Founding Business Development", "url": "https://www.ycombinator.com/companies/quill-bills/jobs/cPBK2hG-founding-business-development", "location": "San Francisco, CA, US", "type": "Full-time", "role": "Sales", "role_type": null, "salary_range": "$60K - $120K", "equity_range": "0.10% - 0.50%", "experience": "Any (new grads ok)", "visa": "US citizen/visa only", "skills": [] } ], "news": [], "launches": [ { "id": 93732, "title": "Quill Bills: AI billing that makes doctors more money!", "tagline": "Transparent, Fast, and Affordable Medical Billing Agency", "body": "\n**The Problem**\n\nRight now, every doctor in the US pays for human billers. Some of them outsource it to a billing agency which charges them anywhere from 2% to _10% of total revenue_. (that’s crazy!)\n\nThat on its own is expensive, but there’s also another problem: Since processing bills is expensive, up to **30%** of all claim revenue is denied by health insurance companies, and no follow up is made by the biller to fight it.\n\n**The Solution**\n\nDoctors in the US right now are being charged up to 10% on their bottom line and losing up to 30% of their top line revenue.\n\nWell, we’ve figured out how to fix this problem, by making it a lot cheaper to do billing. We’ve figured out how to do it (nearly) all with AI. We have a team of human billers to do manual checks, but they can process orders of magnitude more claims than a biller doing it manually (which is all of them right now).\n\nThis means we can not only charge lower fees, but also we have more bandwidth to fight that 30% denial rate! So we typically end up making doctors more money.\n\nWe’ve got decades of billing experience on our team, and are already deployed with clinics and hospitals in the US processing millions of dollars in annual claim revenue.\n\n**Offer for Doctors**\n\nIf you or somebody you know is a doctor, we can help them make up to 30% more money every year!\n\nWe have a limited offer for the next 10 clinics/hospitals we bring on: **We’ll do your billing as a white-glove service for a flat 1.8% fee (+ no onboarding fee)**. This is way below market price. Just tell them to ask for the YC discount.\n\n**Links**\n\nhttps://quillbills.com\n\n**Asks**\n\nPlease send us any doctors you know! Doctors who own their own practices are our happiest customers.\n\n![uploaded image](/media/?type=post&id=93732&key=user_uploads/89898/609faa41-c675-45cf-b5f1-c7cbf7c57fd8)\n\n", "url": "https://www.ycombinator.com/launches/ONo-quill-bills-ai-billing-that-makes-doctors-more-money", "votes": 24, "created_at": "2025-09-10T00:32:22.403Z" }, { "id": 81746, "title": "Quill AI: A 10x more efficient equity research platform", "tagline": "Turn PDFs into spreadsheets, export data with citations, and get up to speed on earnings performance within seconds of release", "body": "**tl;dr** We are using LLMs to speed up the equity research process by taking the pain out of working with financial filings.\n\n**Problem 1:** **Pulling tables from SEC filings**\n\nThe de-facto current solution is a tool called BamSEC. However, there are a couple of problems with it: a) They don’t provide citation links to their numbers, and b) To merge data from previous filings, you can only do it one table at a time.\n\nQuill solves both these problems. Take a look:\n\n![uploaded image](/media/?type=post&id=81746&key=user_uploads/1188332/a0ad69cc-e3d1-44e3-be24-11b74b4c7147)\n\n**Problem 2: PDFs → Excel is painful**\n\nThis flow normally involves a lot of number-by-number copy-pasting. Quill lets you skip that and turn any PDF into a spreadsheet (extracting all reported numbers and tables) – with citation links for each number.\n\n![uploaded image](/media/?type=post&id=81746&key=user_uploads/1188332/e60269ce-c233-48e5-a639-b4bf03e5d709)\n\n**Problem 3: Earnings season is extremely hectic**\n\nEvery quarter, companies report earnings and investors have to quickly digest the performance, guidance, and Q&A sections of the earnings calls for each of their 20-40 portfolio companies before forming an investment opinion.\n\nQuill lets you digest these sections in an instant. Instead of reading through the raw calls, you get a dashboard that explains the main reported performance and guidance metrics, the key points in management’s commentary, and the key concerns of Wall Street analysts.\n\nFaster workflows mean you can cover more companies per quarter.\n\n![uploaded image](/media/?type=post&id=81746&key=user_uploads/1188332/bf27d425-881e-4da3-8c2d-373a4eff5244)\n\nWe’ve been working hard on these features and would love to get the word out! If you know people who work in:\n\n* Hedge funds\n* Investment banks\n* Equity research\n\nWe’d love to talk to them!\n\nOur website is \n\nReach out to us at [founders@quillai.com](mailto:founders@quillai.com)\n\nBest,\n\nGabriel and Kartik", "url": "https://www.ycombinator.com/launches/LGU-quill-ai-a-10x-more-efficient-equity-research-platform", "votes": 27, "created_at": "2024-06-25T21:56:44.151Z" }, { "id": 72889, "title": "Quill AI: The financial research assistant", "tagline": "Meet Quill, the tool that makes financial research a breeze.", "body": "**TLDR:** We let investors a) extract information from SEC filings just by asking, and b) screen stocks much faster. If you have friends in finance who want to get more sleep this week, send them to [quillai.co](http://quillai.co)!\n\nQuill AI lets you search through SEC filings and screen stocks on command. And we don’t just summarize the information - we point you right to the source, making it easy to audit the results.\n\n**The Problem(s)**\n\n* Investors spend hours reading SEC filings looking for key bits of information to use in their models/reports.\n* Existing AI info extraction tools don’t cite sources very well - making them difficult to audit. They also aren’t tuned for financial filings.\n* Current stock screeners require an annoying filtering process to produce meaningful lists of investment opportunities.\n\n**The Solution**\n\n* Quill’s web app, which lets you search for key pieces of information across financial documents in Q&A format.\n\n![uploaded image](/media/?type=post&id=72889&key=user_uploads/820106/c53e2745-e899-4fbe-90c3-341f984067b5)\n\n* Quill’s natural language screener, which lets you ask for stocks matching your desired criteria.\n\n![uploaded image](/media/?type=post&id=72889&key=user_uploads/820106/dec91582-cca8-4c34-ab17-bec911fe7fba)\n\n**Our Ask**\n\n* If you’re an investor or you work in finance, give Quill a shot at [quillai.com](http://quillai.com) – we’re giving users a 7-day free trial. \n* Try the tool. If you think your whole team could benefit from it, send us a message at [founders@quillai.com](mailto:founders@quillai.com) and we’ll get you up and running.\n\nThank you!", "url": "https://www.ycombinator.com/launches/Ixd-quill-ai-the-financial-research-assistant", "votes": 125, "created_at": "2023-07-09T19:28:15.075Z" } ] }, { "id": 29702, "name": "LedgerUp", "slug": "ledgerup", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/7300af84eef84e88a5fc2a972bbf576cb517a4cb.png", "website": "https://ledgerup.ai/", "all_locations": "San Francisco, CA, USA", "long_description": "LedgerUp is your AI billing teammate for B2B SaaS, transforming contract-based billing from a chore into a frictionless, revenue-accelerating process. We parse contracts, issue invoices, and collect payments in real-time, all while surfacing actionable analytics, allowing your finance team to escape spreadsheet chaos and focus on strategic growth. Just close deals and let us handle your billing for you.", "one_liner": "AI agents that handles complex billing and revenue", "team_size": 5, "industry": "B2B", "subindustry": "B2B -> Finance and Accounting", "launched_at": 1722618064, "tags": [ "Finance", "Billing", "AI" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Summer 2024", "status": "Active", "industries": [ "B2B", "Finance and Accounting" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": [ { "question": "How did your company get started? (i.e., How did the founders meet? How did you come up with the idea? How did you decide to be a founder?)", "answer": "We started with a bootstrapped bookkeeping company, but quickly realized all our customers were struggling with the same thing: AR and revenue tracking problems. They were drowning in manual invoice chasing, payment reconciliation, and complex revenue recognition.\r\n\r\nThe opportunity was way bigger than bookkeeping. B2B companies needed their entire quote-to-cash process automated - usage-based billing, collections, ARR calculations, all of it. So we refocused to build LedgerUp as an AI agent that handles the full AR workflow. " } ], "url": "https://www.ycombinator.com/companies/ledgerup", "api": "https://devasheeshg.github.io/yc-api/batches/summer-2024/ledgerup.json", "year_founded": 2024, "city": "San Francisco", "country": "US", "linkedin_url": "https://www.linkedin.com/company/ledgerup-ai", "x_url": "https://x.com/tryLedgerUp", "fb_url": null, "cb_url": "https://www.crunchbase.com/organization/ledgerup", "github_url": null, "logo_url": "https://bookface-images.s3.amazonaws.com/small_logos/7300af84eef84e88a5fc2a972bbf576cb517a4cb.png", "app_video_url": null, "dday_video_url": null, "company_photos": [ "https://bookface-images.s3.us-west-2.amazonaws.com/attachments/980b63c460402a032998d23781a562dcd40da75f.png" ], "primary_partner": { "name": "Diana Hu", "url": "https://www.ycombinator.com/people/diana-hu" }, "founders": [ { "user_id": 703605, "full_name": "Bailey Spell", "title": "Founder/CEO", "founder_bio": "Previously, I worked at Microsoft, where I was one of two selected by the Office CTO to integrate agents into Office while then becoming the first engineering hire at a seed-stage workflow automation startup. There, I helped the company grow from $0 to $120k in ARR. Now, I am helping lead a new era of finance and accounting for businesses starting with bookkeeping.", "is_active": true, "linkedin_url": "https://linkedin.com/in/bailey-spell-b487ab149", "x_url": "https://twitter.com/baileygspell", "avatar_thumb_url": "https://bookface-images.s3.us-west-2.amazonaws.com/avatars/1cc59b0948053feb3bca4927503b3df1588416f3.jpg" } ], "jobs": [], "news": [ { "title": "13 companies from YC Demo Day 1 that are worth paying attention to | TechCrunch", "url": "https://techcrunch.com/2024/09/25/13-companies-from-yc-demo-day-1-that-are-worth-paying-attention-to/", "date": "Sep 25, 2024" } ], "launches": [ { "id": 86964, "title": "LedgerUp: Handle all Billing from Slack", "tagline": "Meet Ari, your AI teammate that handles all billing and revenue from Slack", "body": "### **TLDR;**\n\nLedgerUp built an AI revenue teammate—[Ari](https://ledgerup.ai/)—to eliminate the multiple tools to juggle to get from “contract signed” to “cash in the bank.” [Ari](https://ledgerup.ai/) integrates with your CRM, automates invoicing, chases payments, and lives in Slack with real-time revenue data. The result? No more manual data entry, overdue payments, scattered data, and hiring FTEs to spend countless hours wasted in back-and-forth amongst different departments.\n\n_Below is an example of CRM → invoice process:_\n\n![uploaded image](/media/?type=post&id=86964&key=user_uploads/671520/29023983-80d3-4031-9e09-86f2d56ff162)\n\n### **Why does this matter?**\n\n3 out of 4 businesses face payment delays, with the root cause beginning at the invoice creation stage.\n\n**The Pain**: Most companies juggle contract softwares (ex: DocuSign/PDFs), spreadsheets, and a manual billing process riddled with errors, overdue payments, and hours spent data-entering.\n\n**Why It Matters**: These inefficiencies lead to missed revenue, cash flow constraints, and wasted staff time. Founders often feel they need extra full-time staff just to manage invoicing.\n\n### **How does Ari solve this?**\n\nSignature to Revenue, _Automatically_\n\nAri takes over the moment a contract is signed:\n\n1. Zero-Touch Contract Import: Signature lands → Contract processes → Revenue flows. All automatic, all instant. \n2. Intelligent Revenue Automation: Every signed agreement is automatically billed to its unique billing requirements\n3. Real-Time Slack Updates: Approve the final output in Slack and ask questions as needed\n\nWhile others offer yet another tool to learn, **your AI teammate takes over the moment a contract is signed.**\n\n### **Our ask**\n\nFrom startups to enterprises, every business faces contract-to-cash challenges. If you know revenue leaders who'd benefit from an AI billing teammate, we'd be grateful for an introduction!\n\nWho we serve well:\n\n* **Finance & Ops Teams:** automating billing operations while maintaining GAAP compliance\n* **Founders & Revenue Leaders:** who need clear revenue visibility without the operational overhead\n* **CFOs & Controllers:** seeking accurate, real-time revenue data and forecasting 💰\n* **Sales & Customer Success:** teams who want to focus on relationships, not invoice follow-ups\n* Email us at [founders@ledgerup.ai](mailto:founders@ledgerup.ai)\n\nBetter yet if you have a business that has contracts, **try Ari**: [Sign Up Here](https://www.ledgerup.ai/demo) or **Schedule a Call** with us: [Book a Short Call](https://cal.com/joe-ledgerup/15min).\n\n### **Team/Origin Story**\n\nDuring his years as a finance director for startups, [Joseph](https://www.linkedin.com/in/joseph-johnson-/) lived the revenue operations nightmare firsthand. His days were consumed with juggling dozens of different apps – one for contracts, another for invoicing, yet another for payment tracking, and endless spreadsheets to tie it all together. \n\nThe \"_solution_\" was always to hire more FTEs to manage the chaos, but that just shifted the burden of wrestling with broken processes to someone else.\n\nTeaming up with his childhood friend [Bailey](https://www.linkedin.com/in/bailey-spell-b487ab149/), who had been building AI Agents for the past 2 years, they recognized this wasn't just their problem – it's a universal pain for any company with contracts that need to get paid. \n\nThey're on a mission to liberate founders and finance teams from revenue operations chaos, giving them back the time and clarity needed to focus on what matters most: growing their business.\n\n![uploaded image](/media/?type=post&id=86964&key=user_uploads/671520/fb4f1b72-713e-444d-a5b5-eb170a3a18db)\n\n", "url": "https://www.ycombinator.com/launches/Mce-ledgerup-handle-all-billing-from-slack", "votes": 11, "created_at": "2025-01-20T06:36:33.585Z" }, { "id": 82825, "title": "LedgerUp - Your AI teammate that handles all billing and revenue from Slack", "tagline": "Your AI billing teammate in Slack", "body": "Hey everyone! We’re Joe and Bailey from LedgerUp. We leverage AI to handle back-office finance and accounting tasks so you can get back to running your startup.\\\n\\\n**Tl;dr**\n\nUse [LedgerUp](https://ledgerup.ai/) to take care of back-office finance and accounting tasks. From daily bookkeeping to investor-ready reporting, we handle everything in between, and with integrations directly into your email/Slack inbox you are only a click away from automating a task or gathering insights on your financials.\n\n❌ **The Problem**\n\nAs a startup founder, you need to focus on PMF and scaling your business. You shouldn’t have to worry about your finances. Right now, you might be:\n\n* Wondering about your burn rate or spending\n* Struggling to keep up with bills and invoices\n* Spending too much time on bookkeeping (_or overpaying_)\n* Dealing with mistakes in your financials\n* Unsure if your books are correct\n* Sprinting to get financials ready for investors\n* Using ChatGPT/Perplexity for one of the above tasks but frustrated that the output has to be manually entered into your accounting software\n\n✨ **Our Solution**\n\nSimply connect LedgerUp to your current tools (QuickBooks, Stripe, Bank Account, etc.), and we handle the rest. Our AI Bookkeeping and Finance Assistant can help you…\n\n🚀 Keep track of your burn rate and spending daily\n\n💼 Create & send invoices and subscriptions from contracts\n\n💰 Have customers pay you on time\n\n🧾 Enter and pay bills easily\n\n📊 Have financials always ready for investors\n\n📅 Be ready for tax season without stress\n\n⏳ Save time by automating bookkeeping tasks\n\n🔍 Ensure your financials are accurate and detailed\n\n![uploaded image](/media/?type=post&id=82825&key=user_uploads/671520/618dfc1a-99d3-4384-b12e-b494e5d319b9)\n\n🙌 **Our Asks**\n\nTry [LedgerUp](https://ledgerup.ai/)↗️! We will make your bookkeeping and finance easy and worry-free.\\\n\\\n**The Deal:** $100 off + free bill and invoice management included (_for first 3 months_)\n\nFollow us on [Twitter](https://x.com/tryLedgerUp) or [LinkedIn](https://www.linkedin.com/company/ledgerup-ai/). Our inboxes are always open.\n\nShare this with any startup founders or small businesses who need better bookkeeping and finance solutions.\n\nIf you have 10 minutes to chat about LedgerUp, please [book a time](https://cal.com/joe-ledgerup/10-minute-meeting) with us😊\n\n![uploaded image](/media/?type=post&id=82825&key=user_uploads/671520/962ba37e-91d9-4efe-b822-0983334093dd)\n\n", "url": "https://www.ycombinator.com/launches/LXt-ledgerup-your-ai-teammate-that-handles-all-billing-and-revenue-from-slack", "votes": 54, "created_at": "2024-08-07T18:48:51.459Z" } ] }, { "id": 30945, "name": "Zalos", "slug": "zalos", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/e1e6ee7d8a3b596506042ea8802d90c9c4292a17.png", "website": "https://www.zalos.ai/", "all_locations": "London, England, United Kingdom", "long_description": "Zalos is the Finance Automation Workbench for enterprise finance teams.\r\n\r\nZero Integrations | Transparent Decisioning | Outcome-based Pricing\r\n\r\nLearn more at www.zalos.ai/contact-us\r\n\r\nZalos AI Workers automate processes with improved accuracy, controls & auditability, using a Finance-specific agent harness & skill library.\r\n\r\nBacked by Y Combinator, 14 Peaks, Cohen Circle and strategic angels such as CFO Fedex, Board Member TA Associates, COO Deel and more.\r\n\r\nHire Zalos AI workers such as:\r\n• Zalos AI Staff Accountant\r\n• Zalos AI Billing Analyst\r\n• Zalos AI AP Analyst\r\n• Zalos AI Treasury Manager\r\n\r\nAnd more. Discuss your enterprise finance transformation at www.zalos.ai/contact-us", "one_liner": "Hire Zalos AI workers to run your finance department", "team_size": 10, "industry": "B2B", "subindustry": "B2B -> Finance and Accounting", "launched_at": 1759103907, "tags": [ "Fintech", "Finance", "Enterprise", "Billing", "AI Assistant" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Fall 2025", "status": "Active", "industries": [ "B2B", "Finance and Accounting" ], "regions": [ "United Kingdom", "Europe" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": [ { "question": "What is the core problem you are solving? Why is this a big problem? What made you decide to work on it?", "answer": "Finance processes do not live in one system. They run across ERPs, portals, spreadsheets and inboxes that do not connect cleanly. People move data and resolve the same exceptions by hand every month.\r\n\r\nZalos AI Workers operate those systems the way a finance team does, with tighter controls, accuracy and auditability, using a finance-specific agent harness & skill library.\r\n\r\n**WHY FINANCE TEAMS CHOOSE ZALOS** \r\n\r\n1\\. ZERO SYSTEM INTEGRATION \r\n\r\nAI Workers log in and use your systems through the user interface, as your team does. There are no API integrations to build and no software to replace. \r\n\r\n2\\. TRANSPARENT DECISIONING \r\n\r\nDecisions follow deterministic rules, not model judgement. Decision logic, inputs and controls are traceable and ready for audit, with linked workbooks and timestamped run logs behind every entry. \r\n\r\n3\\. OUTCOME-BASED PRICING\r\n\r\nROI secured by Zalos solving last-mile work, then customer starts subscription when criteria met." } ], "url": "https://www.ycombinator.com/companies/zalos", "api": "https://devasheeshg.github.io/yc-api/batches/fall-2025/zalos.json", "year_founded": 2025, "city": "London", "country": "GB", "linkedin_url": "https://www.linkedin.com/company/zalos/", "x_url": "", "fb_url": null, "cb_url": null, "github_url": null, "logo_url": "https://bookface-images.s3.amazonaws.com/small_logos/e1e6ee7d8a3b596506042ea8802d90c9c4292a17.png", "app_video_url": null, "dday_video_url": null, "company_photos": [ "https://bookface-images.s3.us-west-2.amazonaws.com/attachments/f7e524b37043948e82ce17c31ac512c4d8af84b5.png" ], "primary_partner": { "name": "Tom Blomfield", "url": "https://www.ycombinator.com/people/tom-blomfield" }, "founders": [ { "user_id": 42612, "full_name": "William Fairbairn", "title": "Founder/CEO", "founder_bio": "William was UK General Manager at Agicap, one of the leading ‘Office of the CFO’ startups in Europe (valued at ~$800m).\n\nHe previously was in McKinsey Tech practice, and built & exited a B2B SaaS.\n", "is_active": true, "linkedin_url": "https://www.linkedin.com/in/willfairbairn/", "x_url": "", "avatar_thumb_url": "https://bookface-images.s3.us-west-2.amazonaws.com/avatars/ec080db6feb17e7dcea5af731595718d513c4bbe.jpg" }, { "user_id": 2531337, "full_name": "Hung Hoang", "title": "Founder/CTO", "founder_bio": "Hung built Apple Pay products like Buy Now Pay Later, serving millions daily, and worked on AI initiatives at Apple and other AI startups (Twin.so, Gitguardian).", "is_active": true, "linkedin_url": "https://www.linkedin.com/in/hxuanhung/", "x_url": "", "avatar_thumb_url": "https://bookface-images.s3.us-west-2.amazonaws.com/avatars/a54a8145817c1b3a9f8101446d01fa70ed01f395.jpg" } ], "jobs": [ { "id": 89202, "title": "Founding Product Engineer", "url": "https://www.ycombinator.com/companies/zalos/jobs/MbpksyV-founding-product-engineer", "location": "London, England, GB", "type": "Full-time", "role": "Engineering", "role_type": "Full stack", "salary_range": "£70 - £130 GBP", "equity_range": "0.20% - 1.00%", "experience": "3+ years", "visa": "US citizenship/visa not required", "skills": [] }, { "id": 95332, "title": "Senior AI Engineer", "url": "https://www.ycombinator.com/companies/zalos/jobs/q9x1zkX-senior-ai-engineer", "location": "London, England, GB", "type": "Full-time", "role": "Engineering", "role_type": "Full stack", "salary_range": "£70 - £140 GBP", "equity_range": "0.20% - 1.50%", "experience": "3+ years", "visa": "US citizen/visa only", "skills": [] } ], "news": [ { "title": "Zalos Raises $3.6M To Bring Computer Agents To The CFO's Office", "url": "https://www.forbes.com/sites/ilonalimonta-volkova/2026/03/24/zalos-raises-36m-to-bring-computer-agents-to-the-cfos-office/", "date": "Mar 24, 2026" } ], "launches": [ { "id": 94182, "title": "⚡ZALOS: Computer Agents for Finance Operations", "tagline": "Automate repetitive Finance workflows like categorization & reconciliation, without changing Finance systems!", "body": "### **Eliminate your Finance Operations grunt work - NOW!**\n\n**Zalos Computer Agent:**\n\n⚡Logs into existing systems (e.g., ERP, Accounting, other CFO tools)\n\n⚡Automates Finance processes (e.g., reconciliation, categorization, form filling)\n\n⚡Uploads & submits in your system\n\nRequest demo here:[ ](https://bit.ly/4gJalwn)https://www.zalos.ai/contact-us\n\n**Our ask:** Send our website / YouTube to 5 friends in Midmarket / Enterprise Finance & Operation teams - thank you!\n\nhttps://youtu.be/tx5ymY7DZEU?feature=shared\n\n### **Why IS THIS?**\n\n# **The Blockers ➜ Your Finance Systems:**\n\nFinance Operations is buried in repetitive tasks, driving:\n\n❌ **Lack of financial visibility** for decision-making\n\n❌ **Wasted time** by in-house or outsourced teams\n\n❌ **Mistakes** and **delays** from human-driven processes\n\nBarriers to FinOps automation have included:\n\n🚨 **Legacy ERPs** with limited AI\n\n🚨 **Authentication-protected** websites & portals\n\n🚨 **Too many Finance Systems** that don’t speak to one another\n\nIt doesn’t have to be this way.\n\n# **The Breakthrough ➜ Zalos:**\n\nZalos Agents run your rule-based processes, using your existing Finance applications:\n\n⭐ Our agents **automate processe**s based on **simple instructions** (e.g., Screen Recording, PDFs)\n\n⭐ **Native handling of ERPs** or other applications (e.g., 2FA, Captcha)\n\n⭐ **Superior Finance & Accounting task performance**, including leveraging our **FinOps libraries** (e.g., System Access, Categorization, Reconciliation, etc.)\n\n![uploaded image](/media/?type=post&id=94182&key=user_uploads/42612/798b755c-d5bd-4b10-be1a-dd27ee7a41ff)\n\n⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻\n\n# **Customer story:**\n\n**FROM:** In the Bay Area, a Finance Manager was wasting 4 days (!) per month:\n\n✖️ Downloads transactions from Corporate Credit Cards & legacy Banks\n\n✖️ Uploads into NetSuite and manually categorizes 100s of transactions\n\n**USING ZALOS:** Finance Manager schedules ‘run process’ weekly:\n\n✔️ Zalos handles 2FA to download & submit required transactions\n\n✔️ Zalos operates NetSuite to categorize >60% outstanding transactions\n\nNo browser required: Zalos works silently in the background, continuously improving itself.\n\nGaining 1 day per week was transformational. The Finance Manager could:\n\n🟪 Reduce financial risks with closer inspection (e.g., debt covenants)\n\n🟪 Catch cash leakages by spotting suppliers being paid at generous terms\n\n🟪 Be a strategic partner to the CEO & business with better analysis\n\n⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻\n\nZalos **transforms** your Finance Operations:\n\n☑️ **Scale without headcount** - don’t let Operations teams be a bottleneck\n\n☑️ **Smarter every day**, with evals & RL-finetuning driving a self-performing system\n\n☑️ **Built for Enterprise-grade security** and screen records every automation for audit\n\nRequest demo here:[ ](https://bit.ly/4gJalwn)https://www.zalos.ai/contact-us\n\n⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻\n\n# The Team\n\n**William** was UK General Manager at Agicap, one of the largest ‘Office of the CFO’ startups in Europe, after working at McKinsey. He previously built & sold a bootstrapped B2B SaaS.\n\n**Hung** built Apple Pay products like Buy Now Pay Later, serving millions daily, and led on other AI initiatives at Apple, alongside working for other great AI startups.\n\n## **⚔️ We’re on a war path to automate repetitive Finance tasks⚔️**\n\n➡➡ Request demo here:[ ](https://bit.ly/4gJalwn)https://www.zalos.ai/contact-us\n\n📩📩 **Questions?** Email me at: [will@zalos.ai](mailto:will@zalos.ai)\n\n🙏🙏 **Our ask:** Send our website / youtube video to 5 friends in Finance / Operations - thank you!", "url": "https://www.ycombinator.com/launches/OV4-zalos-computer-agents-for-finance-operations", "votes": 324, "created_at": "2025-09-29T14:00:21.640Z" } ] } ]