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Trinity E.M.S., Inc. was started in Lowell, Massachusetts in 1991 by John Chemaly and Gary Sepe, two local professionals with over 60 years of combined EMS and healthcare experience.

Prior to founding Trinity, John and Gary had worked together as EMTs, developing a strong bond as friends and coworkers. When the company they were working for was on the verge of being sold, the two decided to go into business for themselves. Fueled by a desire to stay and work in the Merrimack Valley and a strong entrepreneurial spirit, the two founded Trinity E.M.S.

Over the past 25 plus years, John and Gary have grown Trinity into an industry leader with over 270 employees, 75 vehicles at seven locations throughout the Merrimack Valley and Southern New Hampshire. In 2015, Trinity responded to nearly 75,000 calls for service.

Trinity E.M.S. and John Chemaly were honored by the Lowell Vocational Technical High School and D’Youville Senior Care for their community involvement. Trinity was also awarded the prestigious George L. Duncan Award of Excellence for community service, entrepreneurship and business excellence and the Patriot Employer Award for their support of servicemen and women. Learn more about Trinity's latest awards and community involvement.


Click here for a listing of Trinity's base locations and contact information.

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