Seed · Productivity & Collaboration · London, United Kingdom · Founded 2021 · 4–6 employees
SigmaOS is a productivity-focused web browser designed specifically for knowledge workers, founders, and content creators. The browser revolutionizes web browsing with workspace-based organization, vertical tabs, and integrated AI assistant Airis, addressing the problem of tab overload and context switching that plagues traditional browsers. The company has raised $4 million in seed funding from prominent investors including LocalGlobe and Y Combinator, and has gained significant traction with 100,000+ users generating 75,000 LLM requests per day. Founded by Y Combinator alumni who previously turned down offers from Apple and Meta, the startup is taking on browser giants with innovative features like shared workspaces for team collaboration and Chrome extension support on a WebKit foundation.
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