AI Startup Viktor Raises $75 Million for Team-Focused Agent

Viktor, an AI agent designed to function as a virtual coworker inside Slack and Microsoft Teams, has raised $75 million in a Series A round. The funding was led by London-based Accel Partners with participation from Bek Ventures, Kaya VC, and Tenacity Capital.

Angel investors including Slack cofounders Stewart Butterfield and Cal Henderson, Synthesia CEO Victor Riparbelli, and executives from Google DeepMind, Figma, and ElevenLabs also joined the round.

Fryderyk Wiatrowski, CEO and co-founder of Viktor, joined Meta to find a co-founder and later met engineer Peter Albert, who had worked on Meta’s Llama 2 team. The pair spent evenings developing AI agents aimed at handling routine knowledge work. Three months after Viktor’s public launch in February, the company reports a $15 million annualized revenue run rate and more than 2,000 organizations using the product across e-commerce and technology sectors.

Team members message the bot to request tasks such as pulling reports or building internal apps. Viktor connects to tools including Google Drive, Meta Ads, Airtable, Notion, and Shopify, and maintains a persistent memory of company operations. Wiatrowski said Viktor reviewed a complex Meta Ads setup and identified a change that saves about $10,000 a week in advertising spending.

Wiatrowski said the team later concluded the inbox was not the best location for an AI agent, leading to the creation of Viktor. JaceAI continues as a separate company. Zhenya Loginov, a partner at Accel, said the firm met the founders multiple times over the past two years.

Earlier products impressed technically but appeared too niche for a large company. When Viktor launched, Accel partners flew to Warsaw within weeks. The company invests in safety and governance features. Organizations can restrict access to sensitive integrations, and the product flags personal connections such as private email, encouraging users to keep them private by default.

Viktor can still act in unintended ways. During one internal layoff announcement, the bot reacted with a skull emoji in a public channel, Wiatrowski said. Viktor offers a free tier for testing before users commit to a subscription based on credit usage.

Some teams now spend more on Viktor than on a junior hire, Wiatrowski said.