HAMMEL GREEN & ABRAHAMSON INC

HAMMEL GREEN & ABRAHAMSON INC specializes in comprehensive architectural and engineering services for federal infrastructure, with deep expertise in the design, renovation, and lifecycle management of federal courthouses and government buildings. Their core capabilities include structural and systems integration for building hardening, elevator modernization, roof protection systems, sewer and water infrastructure assessments, and ventilation verification surveys. The firm delivers full-scope A/E services—from pre-design studies and bid-phase support to construction management and post-construction inspection—ensuring compliance with GSA standards, accessibility requirements, and federal building codes. Their technical proficiency spans building envelope analysis, mechanical system upgrades, life safety system evaluations, and adaptive reuse of historic federal structures, distinguishing them as a trusted advisor for mission-critical federal asset preservation. The contractor maintains a sustained, exclusive relationship with the General Services Administration, delivering specialized architectural and engineering services across a portfolio of federal properties, including courthouses, administrative buildings, and land ports of entry. Their work consistently supports GSA’s mission to modernize, secure, and sustain the federal real estate portfolio, with recurring engagement on high-profile judicial and administrative facilities in the Upper Midwest. Their primary industry focus is architectural services under NAICS 541310, with deep vertical specialization in federal courthouse and federal building modernization. They serve as a technical extension of GSA’s Public Buildings Service, addressing complex challenges in aging infrastructure, security enhancements, and energy efficiency retrofits within constrained federal environments. Based in Minneapolis, Minnesota, HAMMEL GREEN & ABRAHAMSON INC operates as a privately held firm (2L structure) with no federal certifications on record. Their geographic positioning is centered in the Upper Midwest, where they maintain a strong regional footprint and institutional knowledge of federal facilities in Minnesota, Wisconsin, and Michigan, enabling efficient, locally informed delivery of federal construction and renovation projects.