CIANBRO CORPORATION

Cianbro Corporation specializes in heavy civil engineering and infrastructure construction for federal defense installations, with deep expertise in naval shipyard modernization, seawall rehabilitation, bridge structural repairs, and dry dock complex upgrades. Their technical capabilities encompass precision civil works, marine construction, and mission-critical facility enhancements under stringent military standards, including complex underwater and waterfront engineering, concrete restoration, pump and valve system replacements, and phased pre-construction planning for high-security naval environments. The contractor demonstrates a proven ability to execute technically demanding projects in constrained operational settings, often requiring coordination with active military assets and adherence to Navy and Marine Corps infrastructure specifications. The company maintains a consistent and trusted relationship with the Department of Defense, delivering mission-supporting infrastructure across multiple naval and military installations, including Portsmouth Naval Shipyard, the U.S. Naval Academy, and Fort Eustis. Their work spans dry dock refueling complexes, shoreline stabilization, and bridge rehabilitation—projects requiring advanced geotechnical analysis, marine structural engineering, and strict environmental compliance. Cianbro’s primary focus lies in NAICS 237990 (Other Heavy and Civil Engineering Construction), where they execute large-scale, non-highway civil works such as marine infrastructure, flood control systems, and facility upgrades. Their secondary focus in NAICS 237310 (Highway, Street, and Bridge Construction) reflects specialized bridge repair capabilities, while NAICS 238290 highlights their role in pre-construction services for complex mechanical and structural systems. This positions them as a niche provider of defense-critical civil infrastructure, not general construction. Cianbro Corporation is headquartered in Pittsfield, Maine, and operates as a privately held entity without federal certifications. Their geographic presence is anchored in the Northeast, with a strategic footprint in key U.S. Navy and military engineering corridors, enabling rapid mobilization for defense infrastructure projects requiring regional familiarity and logistical efficiency.