Raj Thiruchelvarajah

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Raj Thiruchelvarajah is co-founder and CEO of Hytro, the London-based company behind the world's first wearable Blood Flow Restriction (BFR) product. The technology embeds an occlusion mechanism into apparel, removing the cuffs and machines that previously confined BFR to research labs and elite training rooms. Hytro is now used by more than 250 professional sports teams worldwide, including organisations across the Premier League, NFL, NBA, and Formula 1.

Thiruchelvarajah co-founded Hytro in 2019 with sports scientist Dr. Warren Bradley and Paul Harter, and now leads the company through a period of fast scaling. Revenue grew roughly 80% year-on-year to mid-2025, when Hytro secured its US patent (12,317,940), protecting the design through 2040. The company has raised over £1m to date, with a 2025 round led by Joyned Capital and Skin In The Game adding athlete investors including Jurrien Timber, Quinten Timber, and Benjamin St-Juste. Hytro's wearables flew on the Polaris Dawn mission in 2024 as part of NASA/SpaceX research into BFR's effects in zero gravity.

Before Hytro, Thiruchelvarajah spent more than a decade in finance — including roles at Vantis, PepsiCo, and Barclays, where he led the Recovery and Resolution Plan project team — and was previously CEO of Goal Master. He holds an MA in International Relations from the University of Warwick.