Synthflow AI was founded in 2023 and is based in Berlin, building a no-code platform that lets businesses create AI voice agents capable of handling inbound and outbound phone calls in a natural, human-sounding way.
The product abstracts the complexity of speech recognition, generative voice, and dialogue management into a visual builder, so non-technical teams can design, deploy, and monitor voice agents for use cases like customer support, scheduling, and qualification.
In June 2025 Synthflow AI raised a $20M Series A (roughly EUR 17.2M) led by Accel, with continued support from existing backers Atlantic Labs and Singular. The funding is aimed at accelerating enterprise adoption of its AI voice agents.
Synthflow positions itself in the fast-growing generative voice agent market, emphasizing speed of deployment and natural-sounding speech for companies that want to automate large volumes of phone interactions.