GZA GeoEnvironmental Inc. recently named Patrick F. Sheehan as chief executive officer. He succeeds William E. Hadge, who served as CEO since 2013. The multi-disciplinary firm, which provides geotechnical, environmental, ecological, water, and construction management services, also announced that John C. Murphy has been promoted to the new position of chief operating officer. “I am truly honored to be chosen as GZA’s next CEO and look forward to working with John and the rest of our leadership to further grow and evolve GZA," Sheehan said in a statement. 

Sheehan, who has worked at GZA for 28 years, most recently served as one of GZA’s four operations officers responsible for the day-to-day leadership of the firm. Prior to that, he was the company’s Boston-area office manager. Sheehan also currently serves on the board of the Environmental Business Council of New England and guest lectures at colleges and universities. 

Murphy, who has worked for GZA for more than 30 years, also most recently served as one of four operations officers.  Previously, he was the company’s Northern New England office manager. Murphy currently serves on several professional organization boards and committees, including the New Hampshire Business and industry Association and The National Demolition Association. 

After 39 years at the firm, Hadge says serving as CEO "has been the greatest privilege of my life." During his tenure, GZA grew its operations outside of New England, including in Illinois, Wisconsin, Michigan, New Jersey, New York and Pennsylvania. Hadge called Sheehan the "ideal choice for GZA’s next CEO. He has great humility, communication skills, business acumen, and vision that serve our clients and staff extremely well. I’ve known John almost as long, and he’s been at the forefront of many of the most significant projects and challenges the company has faced over that time. He is an exceptional leader and a master of operational efficiency. We are lucky to have two such strong leaders.’’