HGGC, a middle-market private equity firm, completed the acquisition of Marmic Fire & Safety, a full-service fire protection company, from Thompson Street Capital Partners, a St. Louis-based private equity firm. Financial terms were not disclosed. "This company was founded by my grandparents, and it was very important to me to work with a firm that understands and appreciates what a family business really means. HGGC's partnership approach made them a perfect fit to help us continue to identify and acquire other great fire protection companies to join the Marmic family. We thank TSCP for their supportive and collaborative partnership over the past two and a half years as we transformed the business through operational improvements and strategic M&A," Michael Teeter, Marmic CEO.