fonio.ai, a Vienna, Austria-based AI startup that provides AI-powered call assistant, has raised €3 million in funding. 

Investors 

The round was backed by 13 selected European angel investors, including Daniel Gutenberg, Christian Stieber, Robert Wuttke, Jens Lapinski, and an unnamed Sequoia Scout. 

fonio.ai Use of Funds 

The company will use the capital to enhance its AI technology, expand into an omnichannel communication platform, and strengthen its presence across European markets. 

About fonio.ai 

Founded in 2024 by Daniel Keinrath and Matthias Gruber, fonio.ai is an AI company that developed an AI-powered call assistant designed to automate business phone communication. The platform answers and manages calls, transcribes conversations, schedules appointments, processes orders, and supports customer service workflows. It integrates seamlessly with CRM systems and calendars, with all data stored on GDPR-compliant servers in Germany and processed using large language models hosted within Europe. The company serves nearly 4,000 customers across the DACH region. 

Funding Details 

Company: fonio.ai 

Raised: €3.0M 

Round: Unknown 

Funding Date: December 2025 

Investors: Daniel Gutenberg, Christian Stieber, Robert Wuttke, Jens Lapinski 

Company Website: https://www.fonio.ai/ 

Software Category: AI Voice / Customer Communication Automation 

Source: https://www.vestbee.com/insights/articles/fonio-ai-secures-3-m