Princeton Equity Group, a franchise and multi-unit private equity firm, completed the investment in D1 Training, an athletic-based training fitness concept company. Financial terms were not disclosed. "The investment from Princeton is a testament to D1's distinct brand reputation, our proven success, and strong growth potential in the fitness industry. The investment comes at a great inflection point for our business. We've seen significant growth since we started franchising in 2017 and are now looking to the next chapter. With this partnership, we are positioned for major expansion in both existing and new markets, while we make strategic investments to bolster our brand and support our high-powered franchisees," Will Bartholomew, D1 Training CEO & Founder.