AI startup Viktor raises $75 million Series A to deploy virtual coworker agents in Slack and Microsoft Teams

Viktor, an AI agent that embeds itself in company Slack or Microsoft Teams workspaces, raised $75 million in Series A funding led by Accel, with participation from Bek Ventures, Kaya VC, Inovo VC, and Tenacity Capital. Angel investors included Slack cofounders Stewart Butterfield and Cal Henderson, Synthesia CEO Victor Riparbelli, and executives from Google DeepMind, Figma, and ElevenLabs.

The product connects to business tools like Google Drive, Meta Ads, Airtable, Notion, and Shopify to answer questions and execute tasks across those systems. Team members message the bot to request help such as pulling reports or building internal apps; the agent can also scan public channels and propose new workflows to automate.

Three months after public launch in February, Viktor has reached a $15 million annualized revenue run rate and more than 2,000 organizations using the product across sectors like e-commerce and technology. The company offers a free tier and subscription pricing based on credit usage.