BLDM (Bermúdez, Longo, Díaz-Massó, LLC) is a specialty contractor headquartered in San Juan, Puerto Rico, and operating across Puerto Rico and the wider Caribbean. Founded in 1962, it has spent more than 60 years in operation and is the largest locally owned specialty contractor in the Caribbean. Its work spans mechanical, electrical, telecommunications, water and hydraulic infrastructure, and HVAC construction, delivered as integrated services under one roof to improve coordination and shorten project cycles.
The company's technical scope also covers renewable energy construction. It is a pioneer in renewable energy implementation in Puerto Rico, having completed 3 of the 4 large-scale utility renewable energy projects in the region and installed more than 140 MW of solar and wind capacity. Projects serve clients in housing, hotels, transportation, manufacturing, and energy infrastructure.
For skilled tradespeople and safety-minded professionals, BLDM maintains a formal Environment, Health & Safety function, with EHS professionals overseeing compliance and ongoing staff training in safety procedures and regulations. The firm states commitments to safety, quality, and productivity, and holds a number one ranking among electrical and mechanical contractor classifications and a number three ranking in general construction company classification. Its stated ethos is "building innovation".
