Synthflow
Synthflow is a Voice Agent Infrastructure company founded in 2023 and based in London, United Kingdom. It has raised $27M in total funding, most recently a Series A in 2025.
Synthflow offers a no-code platform for building voice AI agents, targeting SMBs and solo entrepreneurs without technical resources. Popular among solopreneurs and agencies building white-label voice agents; raised pre-seed funding in 2024.
Synthflow democratizes voice-agent deployment with a no-code builder, serving the non-developer SMB market.
synthflow.ai ↗·Voice Agent Infrastructure·
United Kingdom·private 
