TDG, INC.

ONYX OF ALEXANDRIA, INC specializes in integrated architectural and engineering services for federal infrastructure projects, with a focus on design, renovation, and facility modernization. The firm delivers full-cycle architectural services—including space planning, construction documentation, and renovation design—as well as engineering support for structural and systems upgrades. Their work on federal buildings demonstrates proficiency in adaptive reuse, lease fit-out renovations, and facility repair programs, particularly in mission-critical environments. The contractor brings technical expertise in building code compliance, ADA accessibility standards, and federal construction documentation protocols, with demonstrated experience in coordinating complex modifications to existing structures under stringent government oversight. The company maintains a consistent presence with the Department of Defense and the General Services Administration, delivering facility improvement services tailored to federal operational needs. For the DoD, they provide engineering and architectural support for military installation repairs and infrastructure upgrades, while with GSA, they execute design and renovation tasks for federal office buildings, including tenant fit-outs and backfill projects. Their relationship with these agencies reflects a pattern of repeat engagement on multi-phase projects requiring precision in design documentation and regulatory alignment. Their primary industry focus lies in architectural services (NAICS 541310), complemented by engineering (541330) and landscape architectural services (541320), positioning them as a niche provider of multidisciplinary design solutions for federal facilities. They serve the federal real property portfolio with an emphasis on legacy building modernization, adaptive architecture, and compliance-driven renovations. As a small business structured as a 2L entity based in Alexandria, VA, ONYX OF ALEXANDRIA, INC operates without federal certifications but leverages its geographic proximity to federal decision-makers and deep familiarity with GSA and DoD procurement workflows to deliver responsive, technically rigorous design services.