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SigmaOS

Consumer1 open
London, UK5+ employees
The new home for your internet 🏡

The new home for your internet 🏡

YC S21

About the Company

The first web browser made for work!

SigmaOS is a new type of browser designed for founders, researchers, and content creators to make you better and faster at working on the web.

We are a YC backed company on the path to create the next era of browsers, what we call the workOS! 🚀

We became Product Hunt’s number 1 product of day, week and month during August! 🥇

After our success on Product hunt we didn’t slow down, we continued building the best product for our users with our users! ❤️

Tech Stack

SigmaOS is a native browser for the Apple ecosystem. We use SwiftUI to build the UI / UX for optimal performance and WebKit for the best in class out of the box security & privacy as well as browser performance. One of the more challenging and interesting problems we’ve worked on is creating our own custom framework to make Chrome extensions available in a WebKit browser; best of both worlds!

Founders

Ali Attar
Ali Attar

Founder @Lightberry (F25) 💛

Mahyad Ghassemi
Mahyad Ghassemi

2x YC founder building a web app to create AI coworkers using natural language, think of it as Lovable but specifically designed for AI agents. previously built the first web browser designed for work with AI agents built in @SigmaOS (S21), used by 100,000+ people with 75,000 LLM requests per day.

Saurav Mitra
Saurav Mitra

Building Okibi (S25) to create AI coworkers using natural language, like Lovable but specifically designed for agents. Previously built SigmaOS (S21), the agentic browser built for work. Used by 100,000+ people.

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Sequoia logo
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