Terry G. Harrelson

Terry G. Harrelson serves as a key procurement professional within the FA4418 628 Cons Pk unit of the Department of the Air Force, supporting the sustainment and modernization of critical infrastructure at Joint Base Charleston and associated installations. Responsible for managing construction, maintenance, and mission-enabling service contracts, Harrelson ensures operational readiness through timely acquisition of facilities-related capabilities. Their work directly supports the agency’s mission to maintain airfield integrity, utility systems, and secure base environments, with a focus on contracting for plumbing, heating, air-conditioning, security systems, and environmental services. Harrelson’s portfolio emphasizes mission-critical, non-complex services requiring precise technical oversight and compliance with DoD facility standards. Harrelson maintains consistent working relationships with a core group of contractors, including MCKENZIE CONSTRUCTION & SITE DEVELOPMENT LLC for site and infrastructure work, PROTECT KITCHEN EXHAUST CLEANING, LLC for specialized facility hygiene services, ACCESS PORTABLE TOILETS INC for temporary sanitation support, and ML Armaments LLC for security-related installations. These partnerships reflect a preference for established vendors with proven track records in military base operations, often engaging firms capable of rapid response and adherence to stringent security and environmental protocols. Harrelson’s contracting patterns demonstrate a balanced approach to socioeconomic goals, with approximately one-third of awards structured as total small business set-asides under FAR 19.5, while the majority remain open to all competitors. This reflects a pragmatic commitment to small business participation without compromising mission urgency or technical requirements. No other socioeconomic set-asides such as 8(a), HUBZone, or SDVOSB dominate the portfolio, indicating a focus on capability over designation. The agency’s procurement activity is heavily concentrated in NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors), followed by security systems services (561621), natural gas distribution (221210), automotive repair (811111), and landscaping (561730). This underscores deep expertise in facility systems maintenance, utility infrastructure, and base-level support services essential to sustaining Air Force operational readiness.