Synthflow raises $20M to put human-sounding AI on the phone
Berlin-based Synthflow announced a $20 million Series A led by Accel today, bringing the voice-AI startup's total funding to $30 million as it pushes deeper into enterprise call automation and opens a U.S. office.
Founded in 2023 by brothers Hakob Astabatsyan (CEO) and Albert Astabatsyan (CPO) alongside CTO Sassun Mirzakhan-Saky, Synthflow bills itself as a no-code platform for building, deploying and scaling AI voice agents. The company says customers have already routed more than 65 million calls through its system for over 1,000 clients, saving more than 4 million hours of human agent time and earning a 4.8/5 rating from reviewers.
Synthflow is attacking a fast-growing slice of the broader conversational-AI market. Analysts project the sector could reach about $41 billion by 2030, with voice identified as one of the quickest-adopting channels. That timing is a big part of the pitch to enterprise buyers and to backers such as Accel.
"Voice AI agents have improved rapidly and deployment costs continue dropping," said Luca Bocchio, partner at Accel, in the company announcement. "That combination makes now the right moment to push voice into mission-critical customer workflows."
Synthflow pitches two advantages to win buyers away from legacy interactive-voice-response systems and from developer-led alternatives. First is a visual, no-code "Flow Designer" that, the company says, lets business teams build conversational flows without writing code. Second is an enterprise checklist: white-label deployment, SOC 2, HIPAA and PCI DSS compliance, and a catalogue of more than 200 integrations aimed at BPOs, healthcare providers, financial services and real-estate firms.
That combination is deliberate. Competitors such as Retell AI or Vapi tend to be developer-first; Synthflow is positioning itself as the tool for operations and contact-centre managers who need rapid time-to-value and controls for regulated industries.
Founders combine consulting and operational experience — Hakob's background includes BCG and Rocket Internet, while Albert holds a CFA and the technical heft comes from Sassun — a mix the company says helps it sell into enterprise buyers who value process as much as model performance.
Synthflow's raise is another data point in a maturing European AI ecosystem where startups are coupling product-led engineering with go-to-market muscle. For Berlin founders, the important threads are clear: demonstrable regulatory compliance, tight integrations into existing contact-centre stacks, and a product non-technical teams can operate.