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Experts we work with

Why we work with experts

Over a million people train with Yellow Dude. We don't take that lightly.

Whatever we put out, we want it to hold up to expert eyes. So we bring in people who've spent years doing the work, not just talking about it. Their input shapes what we make and what we don't.

If something has our name on it, an expert helped get it there.

  • Hampton Liu

    Founder of Hybrid Calisthenics, Hampton has built a 8M+ community across YouTube and beyond. His approach is simple: anyone can train, no matter where they start. Honest coaching, beginner-first progressions, zero ego. When he's not training, he's probably drinking coffee.

  • William Soo

    Fitness coach with 17+ years across calisthenics, mobility, handstands, and strength training. Started in bodybuilding, switched to calisthenics, traded 7kg of muscle for full-body freedom. Focuses on expanding range of motion and helping others train with simple, realistic, thought-provoking advice.

  • Onur Sezer

    Calisthenics athlete from Vienna with over a decade of experience across freestyle, weighted, and max reps. Freestyle Champion of Austria, two-time Ninja Warrior finalist. 30 consecutive muscle-ups. 90kg pull-up. Known for versatility over specialization, he builds strength across a wide range of movements.

Want to work with us?

If you're a coach, athlete, or builder with real movement expertise, we'd love to talk. Whether it's reviewing a video, shaping a product, or something we haven't thought of yet, there's a lane for serious experts.

What we offer: full credit, a feature on this page, free product access, affiliate options, and direct exposure to over a million people who train with us.

Email hello@yellowdude.co