About me

I’m Parambir Randhawa, founder of PSR Capital Enterprises, a holding company, and PSR Labs, the lab that does the building. I build companies designed to last, and run small experiments inside them to find out what works.

I grew up in Lancashire and studied mathematics at the University of Leeds. After that I spent about three years as an independent researcher, working across mathematics, AI, economics and property. The businesses are built on that work. I am now starting to publish parts of it: research, development notes and open source projects.

In 2026 it was time to commercialise: PSR Capital Enterprises to hold what compounds over decades, and PSR Labs to run the experiments. The first real work was close to home, automating the admin in a family member’s accountancy practice and measuring the hours before and after.

I assume I am wrong about something important and try to find out what, quickly and cheaply. So I prefer small experiments to big plans, numbers set before the work to stories told after it, and stopping early to carrying on out of pride.

Underneath it is perspectivism: every view is partial, including mine, so the useful skills are epistemic humility and the flexibility to change position when the evidence does. Mathematics and engineering are the tools I reach for first. AI is the lever that lets one person do what used to take a team, and I want to find out exactly how far that goes.

Two bets I am making. First, that a one-person, AI-native company will be a normal size of firm within a decade, not an oddity. Second, that small UK professional practices are the most under-automated businesses in the country, and the gap will close fastest for the ones who measure their own hours.

Day to day I am on the three PSR Labs projects, practice economics first: preparing the Exit Value Programme, which starts in February 2027.

Updated September 2026.

Accountants running practices of one to ten people who want to know where their hours go. Anyone working on property data or council finance. Problems that look small and turn out to be everywhere. Get in touch.

Bouldering, golf and reading.