Viktor raises $75M Series A to put AI coworkers in Slack and Teams
What's the deal? Viktor, a Warsaw- and Munich-based startup building an AI coworker for Slack and Microsoft Teams, has raised $75M in a Series A led by Accel. Bek VenturesDealroom has a profile for this one. Try Dealroom →, Kaya VCDealroom has a profile for this one. Try Dealroom →, Inovo VCDealroom has a profile for this one. Try Dealroom →, and Tenacity CapitalDealroom has a profile for this one. Try Dealroom → joined the round, alongside a long list of angels:
They join existing backers Leonis CapitalDealroom has a profile for this one. Try Dealroom → and Oxford Seed FundDealroom has a profile for this one. Try Dealroom →.
Founded in 2023 by former Meta engineers Fryderyk WiatrowskiDealroom has a profile for this one. Try Dealroom → and Peter AlbertDealroom has a profile for this one. Try Dealroom →, Viktor launched publicly in February 2026. In 10 weeks it hit a $15M annualised revenue run rate and onboarded more than 2,000 organisations.
Why now? The first two waves of workplace AI — chat assistants and coding copilots — gave individual employees better tools but left teams' operational workloads largely untouched. Viktor positions itself not as a personal helper but as a team member: it lives inside a company's existing Slack or Teams workspace, connects to more than 3,000 tools, and executes multi-step workflows — reports, dashboards, apps, campaigns, code — on behalf of the whole organisation.
Accel partner Zhenya LoginovDealroom has a profile for this one. Try Dealroom →, who joins the board, said the firm had tracked the founders for two years but found earlier products too niche. When Viktor launched and traction spiked, Accel flew to Warsaw within weeks.
What could go wrong? Viktor is entering a crowded arena. Salesforce already ships Agentforce inside Slack, and Microsoft is embedding Copilot across Teams and Office. Both can bundle AI agents into existing enterprise contracts — a distribution advantage a startup cannot match.
The product also carries the unpredictability inherent to autonomous AI agents. In one internal incident, Viktor reacted to a layoff announcement with a skull emoji in a public channel. And as teams scale usage, costs can exceed what a junior hire would run.
The signal: Viktor's rapid revenue ramp — $15M ARR in 10 weeks, entirely through Slack and Teams distribution — is a data point for the thesis that the next generation of workplace AI will be embedded inside collaboration surfaces rather than sold as standalone tools. The bet is that the agent closest to where work already happens, with the broadest integrations, wins — regardless of who built the underlying model.
The next 12 months will show whether that thesis holds against the foundation-model labs now building toward the same surface.
Read more: Fortune · The Next Web · EU-Startups · Viktor · Viktor, LinkedIn · Fryderyk Wiatrowski, LinkedIn
Image credit: Viktor
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