Retell AI says voice agent platform hit $100 million annualized revenue on $4.6 million raised

Retell AI, which makes a platform for building AI phone agents, says it has reached $100 million in annualized revenue, meaning its current revenue pace over a full year, after raising only $4.6 million, the company wrote on its blog. It says it got there in under three years with more than 4,000 customers running over 100 million calls a month.

Retell credits a product-first approach: instead of relying on large teams of forward-deployed engineers, it lets builders describe agents in plain language, test them on real calls and change them on their own. Its engineers help large customers launch a first deployment and then train in-house teams to maintain it.

One example is Asbury Automotive Group, whose own developers manage Retell agents that answer service calls for its 157 dealerships. Retell says those agents handled more than 3.1 million minutes of calls over the past year. "The Retell platform allows our developers to become voice AI developers," said Charlie Agrinsoni, Asbury's vice president of development and innovation. The figures are Retell's own.