Coval, the evaluation platform for voice AI, announced a $28 million Series A round of financing led by Norwest with participation from Base10 Partners, Twilio Ventures and Y Combinator. This brings the total capital raised to $31 million since its launch in 2024.

Coval is the leading simulation, observability and labelling platform for AI voice and chat agents that allows enterprises to scale voice and chat AI agents. As Fortune 500 companies look to deploy voice AI and explore how it can change the paradigm for their businesses, Coval gives them the infrastructure to do it reliably and with confidence. The new funding will enable Coval to address the growing reliability and compliance challenges enterprises face as they deploy autonomous voice agents. Coval runs tens of millions of evaluations, and with this new capital, the company will expand its sales and solutions engineering teams to scale and meet this growing demand. Coval will also advance product capabilities including deeper simulation, new integrations, and enhanced human review and monitoring features.