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Empowering Elite Athletes
A New Chapter in Athlete Support
TriSociety has long been a trusted name in the triathlon world, supporting the sport through expert event management, partnerships, and community-driven initiatives. Now, we’re expanding into athlete management, offering the same dedication and strategic expertise to help elite athletes thrive—both in competition and beyond.

Our Athletes
- Arthur HorseauTriathlete
- India LeeTriathlete

Athlete Spotlight – India Lee
India Lee is a force in triathlon—an elite all-rounder excelling in swim, bike, and run. With a proven record on the world stage, she is a consistent podium contender at the sport’s most competitive events.
Led by Teresa Hamilton, India’s management is focused on unlocking opportunities that extend beyond race day. By strategically aligning India with brands that match her endurance, innovation, and performance-driven mindset, we ensure she has the right support, sponsorship, and exposure to fuel her career.
Athlete Spotlight – Arthur Horseau
Arthur Horseau is a world-class long-course triathlete, known for his relentless consistency and blistering run speed—one of the fastest runners in the sport today. His standout results include 6th at the 2023 Ironman World Championships in Nice, a podium at Ironman Austria 2023, and a dominant victory at the brutal Ironman Lanzarote.
In 2025, Arthur has his sights set on Challenge Roth and a return to the Ironman World Championships in Nice—hungry to improve on that 6th place and push for the podium.
Teresa Hamilton leads Arthur’s management, bringing strategic oversight to his racing and commercial goals. With a packed calendar and growing recognition, Arthur is a strong fit for brands that value endurance, precision, and performance—and Teresa’s focused on building the right partnerships to support his climb to the top.

Strategic Athlete Management for Lasting Success
At TriSociety, we take a tailored approach to athlete management, combining industry expertise with a deep understanding of what it takes to succeed at the highest level.
We work closely with our athletes to build sustainable careers, helping them thrive in and out of competition.
Performance Support
Ensuring athletes have the right resources to train, race, and recover.
Commercial Partnerships
Connecting athletes with brands that align with their values and goals.
Career Growth
Providing guidance beyond sport, from media opportunities to long-term career
Partner with World-Class Athletes
Looking to align your brand with top-tier talent? Interested in athlete representation? We’re here to help.
Get in touch to explore collaboration opportunities.