COLBY CO LLC
COLBY CO LLC is a federal contractor, registered under UEI K5LXVGFE7YS7 and CAGE code 55JB9. It has been awarded $615,438,100 across 292 federal contracts. Primary work spans Engineering Services and Architectural Services. Top awarding agencies include W2SD Endist Baltimore, Department Of Defense, and General Services Administration.
Contact Information
Registration and classification details
Registration
UEI Code
K5LXVGFE7YS7CAGE Code
55JB9Entity Structure
Corporate Entity (Not Tax Exempt)Established
N/ABusiness Classifications
NAICS Codes
Federal Contracting Overview
Award totals, agency breakdown, NAICS distribution, and geographic footprint.
AI Capability Profile
Colby Co LLC specializes in comprehensive architecture and engineering services for federal infrastructure projects, with deep expertise in design, commissioning, and renovation of mission-critical facilities. The firm delivers full-cycle A-E services including investigative assessments, vertical an...
Colby Co LLC specializes in comprehensive architecture and engineering services for federal infrastructure projects, with deep expertise in design, commissioning, and renovation of mission-critical facilities. The firm delivers full-cycle A-E services including investigative assessments, vertical and horizontal design, LEED certification support, and retrofitting of existing structures—particularly for defense and public works assets. Their technical proficiency spans structural systems, MEP coordination, facility commissioning, and ADA-compliant accessibility upgrades, with demonstrated experience on military readiness centers, federal office buildings, and logistics facilities. A key differentiator is their ability to execute complex, multi-disciplinary projects under tight timelines, integrating sustainable design principles with operational resilience requirements. The contractor maintains a strong, recurring relationship with the Department of Defense, delivering engineering services for National Guard facilities, barracks renovations, and training infrastructure upgrades. They also serve the General Services Administration on a consistent basis, providing design and commissioning for federal property modernization, including LPOE retrofits, electrical upgrades, and energy-efficient infrastructure improvements. Their work for the Department of Homeland Security further underscores their capability in securing and modernizing federal operational facilities. Colby Co LLC operates exclusively within the engineering services domain (NAICS 541330), positioning itself as a niche provider of specialized A-E solutions for federal real property portfolios. Their focus is on government-owned buildings requiring technical precision, regulatory compliance, and lifecycle-oriented design—particularly in the defense and public buildings verticals. As a small business structured as a 2L entity based in Portland, Maine, Colby Co LLC is strategically positioned to support federal clients across the Northeast and beyond. While currently holding no formal government certifications, their consistent award history reflects a proven track record of performance, reliability, and technical competence in delivering high-stakes engineering services to federal agencies.
Key Performance Metrics
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Past period of performance
Total Awards
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Contracts
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