# Lassie

> Lassie is a San Francisco AI company building an autonomous 'AI healthcare admin worker' for independent medical and dental practices. Its agents log into insurance portals, pull reimbursements, reconcile electronic payments, post entries to practice-management systems, handle appeals and enrollments, and flag exceptions for humans - doing the back-office busywork rather than adding review burden. Founded by Robinhood/Coinbase and Superhuman alumni, Lassie operates in 700+ practices across 49 states and raised a $35M Series A led by Andreessen Horowitz in June 2026.

- **Headquarters:** San Francisco, California, United States
- **Founders:** Steijn Pelle (CEO & Co-Founder), Frédéric Renken (Co-Founder)
- **Team size:** ~38 employees
- **Products:** AI Healthcare Admin Worker, Payment Posting & Reconciliation, Enrollments, Appeals & Reporting
- **Notable:** Raised $35M Series A led by a16z in June 2026 (total ~$47M raised), Live in 700+ practices across 49 states, Delivering 250,000+ labor hours per year to customers

## Products & services

- **AI Healthcare Admin Worker** — An autonomous agent that logs into insurance portals, pulls and reconciles reimbursements against records, posts payments to the practice-management system, and verifies funds in the bank - handling ~98% of posting without a human.
- **Payment Posting & Reconciliation** — Automatically enrolls electronic payments, reconciles EFTs, and posts them to the system-of-record, flagging exceptions for staff review.
- **Enrollments, Appeals & Reporting** — Handles insurance enrollments, claim appeals, follow-up tasks, and status reporting, and answers practice questions on demand.

## Achievements

- Raised $35M Series A led by a16z in June 2026 (total ~$47M raised)
- Live in 700+ practices across 49 states
- Delivering 250,000+ labor hours per year to customers
- $10M+ annualized revenue, driven largely by referrals
- Automates ~98% of payment posting without human intervention

## Latest updates

- **2026-06** — Raised $35M Series A led by Andreessen Horowitz, with Night Capital and angels including Rahul Vohra, Zach Perret, Taavet Hinrikus, Gokul Rajaram, and Brian Balfour.
- **2026-06** — Reported 700+ practices across 49 states and $10M+ annualized revenue.

## Links

- Website: https://lassie.ai
- LinkedIn: https://www.linkedin.com/company/lassie
- Twitter/X: https://x.com/lassieai
- Instagram: https://www.instagram.com/lassieai
- Facebook: https://www.facebook.com/LassieAI

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Profile page: https://yespress.io/lassie
Published by YesPress — https://yespress.io
Last updated: 2026-07-11