Our Story

Sisters Tammy York-Day and Tonya York have always believed in using life’s biggest moments to create meaningful impact. Their journey began with a shared passion for giving back—first through landmark events like the Homeless Ball, the Mint Jubilee, and the Julep Ball, and ultimately through the creation of their own nonprofit in 2012: the Unbridled Charitable Foundation. 

Leveraging their expertise in producing world-class events, they launched Unbridled with a bold vision: to harness the global spectacle of the Kentucky Derby as a platform to spotlight deserving charities and connect them with donors, strategic partners, and a powerful network of supporters. That vision quickly turned into action…and results. Through unforgettable experiences like the Unbridled Eve Derby Gala, they have helped raise over $5 million, supported more than 45 charities, and provided life-changing resources for thousands in need. 

Their founding partnership with Blessings in a Backpack alone has provided over 1.1 million hunger-free weekends to children across America. But the work doesn’t stop there. 

Today, Unbridled is evolving. With the launch of new strategic initiatives, additional high-profile events, and expanded partnerships, 2025 marks the next chapter for the York Sisters’ mission. Their goal: to scale the impact of Unbridled, connect with an even broader community of philanthropists, and create extraordinary experiences that change lives…while ensuring the Foundation operates with sustainability, efficiency, and heart. 

Together, we help people live unbridled….