MANDEX INC

MANDEX INC specializes in engineering services and security systems integration for critical federal infrastructure, with deep expertise in electronic access control, physical security upgrades, and mission-critical systems engineering. The company delivers end-to-end solutions for military treatment facilities and defense installations, including the design, installation, and technical refresh of Lenel S2 and other enterprise-level security platforms. Their engineering services encompass systems engineering, logistics support, quality assurance, and infrastructure modernization for complex DoD environments, often involving multi-site, worldwide deployments. Technical proficiency includes electronic lock systems, integrated security network architecture, and compliance with federal physical security standards, positioning them as a trusted provider for hardened facility modernization. MANDEX INC maintains a strong, sustained relationship with the Department of Defense, delivering security system installations and engineering support across military treatment facilities, administrative buildings, and technical infrastructure sites. They also support the General Services Administration through multiple-award contracts, providing integrated services for federal facility modernization, particularly in shipbuilding and repair contexts where security and systems integration intersect. Their work consistently aligns with DoD’s focus on resilient infrastructure and layered access control, demonstrating a pattern of repeat engagement on technical refresh and upgrade initiatives. The contractor’s primary focus lies in NAICS 541330 (Engineering Services) and 561621 (Security Systems Services), where they bridge civil engineering with physical security technology. Their vertical specialization is in defense infrastructure modernization, particularly in securing high-value government assets through integrated electronic access control, surveillance integration, and systems lifecycle management. This positions them as a niche provider for DoD facilities requiring both technical engineering rigor and hardened security implementation. MANDEX INC is a Service-Disabled Veteran-Owned Small Business headquartered in Fairfax, Virginia, with a 2-level corporate structure that enables agile, mission-focused execution. Their SDVOSB certification enhances their eligibility for targeted federal set-asides and underscores their commitment to national service through technical excellence. The company’s geographic presence supports nationwide DoD and GSA operations, with a strategic footprint in defense and federal infrastructure markets.