Joyned Capital is an athlete-led angel syndicate backing breakthrough technologies shaping the future of sport, while Skin In The Game focuses exclusively on performance-focused companies redefining the limits of human potential. Together, these investment groups bring more than capital as they deliver influence, credibility, and hands-on expertise from the top levels of professional sport.

As part of the investment, Joyned Capital has brought in several high-profile athletes as backers, including Dutch footballers Jurrien Timber (Arsenal FC) and Quinten Timber (Feyenoord), alongside NFL star Benjamin St-Juste (LA Chargers). Their support adds to Hytro’s growing reputation among elite athletes, clubs, and coaches who are turning to the brand’s patented BFR wearables to improve performance and recovery.

Already trusted by over 250 professional teams worldwide – from Manchester City Women to Soudal Quick-Step and leading Premier League, NFL, NBA, and F1 organisations – Hytro is the only BFR product of its kind to receive a US patent, providing intellectual property protection through 2040 (Patent No. 12,317,940).

Jason Esseboom, Founder and CEO of Joyned Capital, commented: “Hytro is the kind of company we get excited about – simple, proven technology, already winning with elite teams, and a clear runway for global scale. The product has proven its value season after season. Backing Raj and Warren was a no-brainer.”

Scott Newall, Co-Founder and CEO of Skin In The Game, added: “For decades, BFR was confined to the lab. Hytro has made it simple, scalable and scientifically sound – and they’ve earned the trust of the best coaches and athletes in sport. Their momentum is only just beginning.”

Jurrien Timber, Arsenal FC and Netherlands international, commented: “Performance and recovery are everything in modern football. Hytro is changing the game in both. I’ve experienced the benefits of BFR training first-hand, and what impressed me most about Hytro is how easy it is to use, whether you’re a pro or just training at home. This is a product built for the future, and I believe Hytro can take it to the next level.”

Benjamin St-Juste, LA Chargers cornerback, added: “I began using Hytro Shorts in 2023 as part of my post-game recovery routine with the Washington Commanders – whether on the treadmill or during pool workouts. What impressed me most was the ability to achieve the benefits of blood flow restriction without bulky machines or cables. Investing in Hytro was an easy decision because I believe this technology has the potential to help millions of athletes recover more efficiently and effectively.”

Raj Thiruchelvarajah, CEO and Co-Founder of Hytro, said:  “To have respected athletes like Jurrien, Quinten, and Benjamin back our mission is a huge endorsement of the work we’re doing. These players know what high performance demands – and they choose to invest in products that deliver. With momentum growing in the US, our newly granted patent now gives us the protection and credibility needed to scale faster across elite sport, wellness, and beyond.”

Following recent collaborations with NASA and SpaceX to explore the use of BFR in zero gravity, Hytro continues to lead in applying science-led recovery tools across elite sport, clinical health, and beyond. 

For more startup news, check out the other articles on the website, and subscribe to the magazine for free. Listen to The Cereal Entrepreneur podcast for more interviews with entrepreneurs and big-hitters in the startup ecosystem.