Roark
Roark is a YC Winter 2025 (W25) company. Based in San Francisco, CA, USA. Team of 3.
About Roark
Summary
Roark builds a QA and evaluation platform for teams shipping voice AI agents. It scores every production call across hundreds of audio-native metrics, runs end-to-end simulations against configurable caller personas before launch, and automatically turns failed calls into repeatable regression tests. It replaces manual call review and ad-hoc testing scripts that miss edge cases and slow down deployment.
Business model
A free tier plus paid plans, with usage billed against call-processing volume.
Go-to-market
B2B teams building or operating voice AI agents, including those on platforms such as Vapi, Retell, and LiveKit, who can start self-serve with $50 in free credit and no card required.
From the Y Combinator listing
Test, monitor, and improve your voice agents
Roark helps teams test, monitor, and improve their voice agents. Voice AI is exploding, but reliability is still the #1 challenge. Teams spend hours manually testing agents and still miss failures. In the last 6 months, Roark has processed over 10M minutes of calls, powering monitoring and simulation for teams across the Voice AI ecosystem (including YC companies). We close that gap by combining: 📊 Monitoring & Evaluation - 40+ built-in metrics (latency, instruction-follow, sentiment, etc.), custom dashboards, alerts, and the ability to define your own. Up to 15 speakers with automatic speaker identification. 🎭 Simulations & Personas - end-to-end phone/WebSocket simulations for inbound and outbound agents, with configurable personas (accents, languages, speech & behavior profiles). Define tests as conversations with a graph-based approach, so you can easily branch into edge cases and variants. 🔁 Full lifecycle loop - failed calls automatically become repeatable tests, so every failure makes your agent stronger. Roark is the missing QA layer for Voice AI - helping teams ship agents they can trust.
Facts
- B2B / B2B -> Analytics
- San Francisco, CA, USA
- 3
- Active
- Early
Founders (2)
- Daniel Gauci
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