YC Spring 2026 (P26) founder

Sourya Majumder

Founder of ProjectX, Agent native workspace for heavy parallel workflows on the web

Company

Sourya Majumder is listed as a founder of ProjectX. Every computer ever made forces you to do one thing at a time. One cursor. One keyboard. One Hardware. One app in focus. Fifty years. Nobody questioned it. We did. We started over. We built InfinityOS, a fundamentally new computer OS on the cloud from ground up. Infinity runs every app in its own independent computer -- own GPU, own input, own environment. Windows and Linux in the same session. Humans and agents working side by side. No concurrency ceiling. Cold start in seconds. runs on the browser of any device..

Founder traction evidence

Public posts and activity attributed directly to this founder.

  1. X

    Last 24 hours have been craaaaazy🤯!!! 800k views in less than a day.

    Last 24 hours have been craaaaazy🤯!!! 800k views in less than a day. - thousands of people signed up - Our servers crashed around midnight - spent all night putting things back together - thousands of people now streaming GPU-heavy apps from any browser tab

  2. X

    We just launched InfinityOS with YC! Run Robotics Sims, 3d modelling tools with as much compute as you want with any gpus that you want ...

    We just launched InfinityOS with YC! Run Robotics Sims, 3d modelling tools with as much compute as you want with any gpus that you want per app. You can sign up at projectx(.)cloud to test it out.

  3. X

    The amount of admin work is craaaazy

    The amount of admin work is craaaazy

  4. X

    2K SIGNUPS IN 24 HOURS ALONE!!! The future of personal computing is not tied to hardware

    2K SIGNUPS IN 24 HOURS ALONE!!! The future of personal computing is not tied to hardware

  5. X

    https://t.co/0zkVK363yt

    https://t.co/0zkVK363yt