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Prosper AI just closed a $30 million Series A led by Andreessen Horowitz, betting that the future of healthcare administration involves fewer humans sitting on hold and more AI agents doing the dialing.
The round also brought in new investor Base10 alongside follow-on participation from Emergence Capital, Y Combinator, and Company Ventures. Total funding for the company now sits in the range of $35 to $36.6 million, including a $5 million seed round that closed in September 2025.
Here’s the thing about healthcare in the US: an estimated $450 billion gets spent annually on administrative tasks. That’s not surgery, not diagnostics, not anything remotely clinical. It’s scheduling appointments, verifying insurance eligibility, filing prior authorizations, and chasing billing paperwork.
Prosper AI builds voice-based AI agents designed to handle exactly those phone-heavy workflows.
From seed to Series A in nine months
Prosper AI went from a $5 million seed in September 2025 to a $30 million Series A announced on June 22, 2026. The company says its revenue has grown approximately fivefold since the seed funding.
Prosper AI now manages workflows for over 150,000 physicians and handles thousands of patient interactions daily. The company also claims an approximately 80% win rate in competitive evaluations.
The $450 billion problem
Prior authorizations are a good example of the administrative burden. Before a doctor can perform certain procedures, someone at the practice has to call the insurance company, navigate a phone tree, wait on hold, and then verbally confirm details that could easily be exchanged digitally.
Prosper AI’s approach is to slot its voice agents directly into existing systems. The company has built integrations with electronic health records and revenue-cycle management platforms, which means its AI can pull patient data, verify insurance details, and complete administrative tasks without requiring practices to overhaul their tech stack.
What this means for investors
The founders, Xavier de Gracia and Josep Mingot, bring backgrounds in medical practices, call center operations, and product development.
Prosper plans to deploy the new capital toward scaling its engineering and customer-facing teams while deepening its EHR and RCM integrations.
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