Viktor

Viktor is an AI coworker platform that lives inside Slack and Microsoft Teams and executes business workflows end-to-end rather than only suggesting text. Connected to thousands of tools, it autonomously generates reports, builds dashboards, writes code, manages ad accounts, and runs data analysis on behalf of teams, positioning itself as an "AI hire" rather than a tool. Founded in 2023 by former Meta engineers Fryderyk Wiatrowski and Peter Albert, the company is headquartered in Warsaw with a second office in Munich. After a public launch in February 2026 it reached a €12.9 million revenue run rate within 10 weeks and is used by more than 2,000 organisations. In May 2026 Viktor raised a $75 million (€64.7 million) Series A led by Accel — reported as the largest Series A ever raised by a Polish technology company — with participation from Bek Ventures, Kaya VC, Inovo VC, and Tenacity Capital, alongside angels including Slack co-founders Stewart Butterfield and Cal Henderson and Synthesia CEO Victor Riparbelli.