Largest Mechanical Contractors in Massachusetts

Rank Firm/Prior rank (*unranked in 2019)/ 2019 Mass. mechanical-contracting revenue Mass. mechanical-contracting revenue YTD 2020 No. of Mass. employees Mechanical-contracting specialties Top local executive(s) 1 J.C. Cannistraro LLC, 80 Rosedale Road, Watertown, MA 02472, 617-926-0092, cannistraro.com 314400000 NA 915 Engineering, installation and service for plumbing, HVAC, sheet metal, fire protection David Cannistraro, CEO John Cannistraro Jr., President 2 E.M. Duggan Inc., 140 Will Drive,…