Lassie · 4× · last seen Aug 04, 2026
53
Momentum
Lassie is an AI agents platform that automates administrative and billing tasks for independent dental and medical practices, including payer registrations, EFT reconciliation, payment posting, claims tracking, denials, and reporting. The product integrates directly into existing practice management systems (Dentrix, Eaglesoft, Open Dental) and operates largely autonomously, escalating complex cases to staff members. Billing is usage-based for completed work rather than a traditional software subscription. The company was founded by Steijn Pelle and Frédéric Renken and became known in June 2026 with a $35 million Series A funding round led by Andreessen Horowitz.
Momentum trend
06.05.04.08.
Features
| Compliance/Certification | HIPAA Business Associate Agreement (BAA); follows standard healthcare data-handling practices |
| Deployment Model | Cloud-based with a local connector agent for existing on-premise practice software; onboarding takes 1–8 weeks depending on payment method |
| Use Case Scope | Independent dental and medical practices: billing, insurance administration, payment posting, and reporting |
| Integrations | Direct posting into Dentrix, Eaglesoft, and Open Dental; bank connectivity and insurance payer portals |
| License | Proprietary software, no open-source model |
| Platform | Cloud software with a local agent connecting Windows-based practice software to Lassie's servers |
| Price | Usage-based (pay for work completed, not flat licensing); reported setup fee around $3,000 per location, billed annually |
| Release Date | No official launch date documented; Series A funding ($35M, a16z) announced June 2026 |