Synthflow Artificial Intelligence, a Berlin startup that builds voice agents capable of natural phone conversations with customers, has raised a Series A round led by Accel. Its no-code platform lets enterprises create and deploy customizable voice agents for tasks such as simple inquiries, customer support, and actions like appointment scheduling. The company says it now counts more than 1,000 enterprise clients, often in call centers across finance, healthcare, and education, and offers white-label options with integration into existing telephony systems.
Cofounder Hakob Astabatsyan said the technology is designed to replace traditional automated call menus by using large language models to enable real-time contextual conversations. In a demo presented to Business Insider, a Synthflow agent handled a car insurance quote request, gathering details in a relaxed, conversational tone before transferring the caller to a human operator. According to Astabatsyan, the system delivers responses in under 400 milliseconds to keep interactions feeling humanlike and responsive.
The startup was founded in 2023 by Hakob Astabatsyan, Albert Astabatsyan, and Sassun Mirzakhan-Saky. Voice has become a key battleground among Artificial Intelligence startups targeting call centers, with companies such as ElevenLabs and PolyAI also attracting significant investment. Synthflow positions its platform for enterprises that want to modernize voice-based customer service without heavy engineering work.
Astabatsyan described today’s funding environment for Artificial Intelligence companies as demanding, noting that investor expectations are very high and that startups are expected to grow about two times faster than benchmarks from a few years ago. The Series A was led by Accel, with participation from Atlantic Labs and Singular. Synthflow plans to use the new capital to open a US office and invest further in its agent platform.
Business Insider reviewed the 10-slide pitch deck Synthflow used to secure the funding. The materials highlight the company’s focus on real-time, humanlike voice interactions, enterprise-ready integrations, and an approach that aims to improve customer experience while reducing call center friction.
