Granby-based firm brings deep equine expertise and a team of competitive equestrians to Marshall+Sterling’s growing national equine practice.
Marshall+Sterling, a top 50 U.S. insurance brokerage and 100% employee-owned risk solutions partner, today announced the acquisition of HorseWorks Insurance Specialists of Granby, Connecticut, effective June 1, 2026. The acquisition expands Marshall+Sterling’s Equine Insurance division into Connecticut and strengthens its ability to serve equine clients across the Northeast.
Founded by Brendan Tetreault, HorseWorks Insurance Specialists has earned a strong reputation for specialized equine coverage, including mortality and major medical, commercial and personal liability, pet insurance, and property coverage. The firm’s defining distinction is its team: every HorseWorks agent is an equestrian with years of personal experience and competitive riding backgrounds — expertise that speaks directly to the clients they serve.
“We built HorseWorks around one idea: that equine insurance should be handled by people who understand horses, not just policies,” said Tetreault. “Marshall+Sterling shares that commitment to specialized expertise and long-term relationships. This is the right partnership for our team and our clients.”
HorseWorks will join Marshall+Sterling’s Equine Insurance division and continue to operate independently during the transition period, with full integration planned for 2027. Clients will continue working with the same HorseWorks advisors they know and trust.
“Equine insurance requires a level of specialized knowledge that can’t be faked, and the HorseWorks team brings the kind of lived experience that makes a real difference for clients when it matters most,” said Eric Diamond, President and Chief Executive Officer of Marshall+Sterling. “This partnership strengthens our ability to serve equine clients across the Northeast with advisors who understand the sport from the inside out.”
The acquisition reflects Marshall+Sterling’s continued commitment to specialty-driven growth — adding firms whose depth of expertise and client relationships align with the firm’s mission to help clients predict, prepare for, and preempt risk.
About Marshall+Sterling
Founded in 1864, Marshall+Sterling is a 100% employee-owned, national independent risk solutions partner, helping clients protect what they’ve built and what comes next by empowering them to predict, prepare for, and preempt risk. Headquartered in New York and licensed in all states and the U.S. Virgin Islands, Marshall+Sterling is committed to creating a future that’s safer and more secure through business and personal insurance, employee benefits, and wealth management solutions. The firm is consistently recognized by Business Insurance as one of the top 50 insurance brokers in the United States. Follow @marshallsterling on social media.
