fonio.ai

fonio.ai is a Vienna-based AI phone agent platform and Europe's fastest-growing AI call automation company for small and medium-sized businesses (SMBs). Founded by CEO Daniel Keinrath and CTO Matthias Gruber, fonio.ai provides AI voice assistants that sound human and handle entire phone calls autonomously — including customer service, appointment scheduling, order management, and inbound/outbound call handling. The platform is purpose-built for the businesses that keep the economy running: trades, clinics, restaurants, logistics companies, and retail SMBs that rely heavily on phone communication but lack the resources for full-time call center operations. fonio.ai's AI agents operate 24/7, handle multiple calls simultaneously, and integrate with existing business workflows. The company has grown to serve close to 10,000 customers across Europe and processes approximately 1.5 million calls per year through its partner network. fonio.ai supports multilingual customer interactions and is positioned as the leading AI phone agent in the German-speaking market and broader European SMB segment. In 2026 the company raised $15.8 million in funding to support global expansion. The company is headquartered in Vienna, Austria.