Concentric Security LLC

Concentric Security LLC, a Maryland-based small business subsidiary of Intellimar Inc., manufactures and installs perimeter security infrastructure—vehicle barriers, bollards, gates, and related access-control systems—as a prime contractor to federal agencies. The company operates predominantly full-and-open (97% of recent awards carry no set-aside designation), though it has won several total small business set-aside awards across the Department of Defense, Environmental Protection Agency, and Department of Treasury.

Concentric Security's customer concentration skews heavily toward civilian facilities-security work. The top five funding agencies by award count (Department of the Army, Department of Homeland Security US Secret Service, Department of the Air Force, Department of Treasury Internal Revenue Service, and Federal Emergency Management Agency Region 4) account for 21% of awards. By dollar value, the concentration is tighter: the U.S. Secret Service leads with $5.7 million across 19 awards, followed by DOD Washington Headquarters Service at $4 million on 8 awards, the National Park Service at $3.7 million on 9 awards, and the Smithsonian Institution at $3.6 million on 7 awards. Representative work includes a $2.94 million total small business set-aside definitive contract (awarded August 2021, completing January 2027) to provide maintenance and sustainment of the Integrated Base Defense Security System (FLECS) equipment at Joint Base Andrews, covering over 250 vehicle gates, barriers, and access control points; a $1 million definitive contract from GSA's Southwestern Region (awarded June 2023, completing June 2028) for maintenance and repair of APM-100 security bollards in Washington, D.C.; a $798 thousand delivery order from the Department of Transportation for replacement security guard booth and concrete pad at the U.S. Merchant Marine Academy Vickery Gate under the Multiple Award Schedule; and a $234 thousand total small business set-aside definitive contract from the EPA (awarded December 2025, completing December 2026) for removal and replacement of two vehicle security barriers at EPA Headquarters.

Concentric Security's vehicle position centers on the GSA Multiple Award Schedule, where 219 task orders carry $27.8 million in combined potential value. The vendor also holds single-award indefinite delivery contracts: a $3.2 million National Park Service IDC (through September 2028) for preventative maintenance and repair of hydraulic bollards and portable barriers at National Mall and Memorial Parks sites; a $3 million Department of Defense blanket purchase agreement for barrier and vehicle access control point equipment maintenance; and a $700 thousand DoD BPA (expired August 2024) for vehicle access control point force protection equipment maintenance services. The DoD work sits on Army and Air Force installations including Joint Base Andrews, Eglin Air Force Base, and the Herbert R. Temple Jr. Army National Guard Readiness Center.

Activity has grown modestly year over year (four awards in 2022 to fifteen in 2025), with nine awards carrying combined potential value of $5.1 million facing ultimate completion inside the next twenty-four months. The company operates primarily as a prime (97% of awards) and rarely subcontracts; across SCI-reportable prime service contracts, subcontractors account for an average of 20% of contractor hours, with four named subs appearing in the source data. Concentric Security subcontracts to M.C. Dean, Inc. on administrative support and preventative maintenance for U.S. Marshals Service Automatic Vehicle Barrier (AVB) equipment and National Park Service maintenance installations, and to Emcor Government Services, Inc. on Federal Bureau of Investigation facilities engineering work. In its own subcontractor role, Concentric Security performs administrative labor and field equipment maintenance under M.C. Dean primes on federal security infrastructure projects.

SCI-reported invoiced revenue on federal service contracts above the $150 thousand threshold totaled $1.4 million across FY2023–FY2024 (FY2023: $588 thousand on 0.2 FTEs; FY2024: $809 thousand on 1.2 FTEs), with government-paid hourly rates on prime service contracts running a median of $274.26/hr, ranging from the 10th percentile of $253.20/hr to the 90th percentile of $398.48/hr. The SCI dataset captures only federal service contracts above the threshold and excludes goods, products, and non-federal work; these figures represent a strict subset of the vendor's federal revenue footprint. By product and service category, the vendor's award history is dominated by miscellaneous alarm, signal, and security detection systems (91 awards), security systems services (68 awards), fencing and gates (32 awards), and maintenance and repair of alarm and security equipment (36 awards), coded primarily under NAICS 333613 (Other Communications Equipment Manufacturing) and PSC 6350 (Miscellaneous Alarm, Signal, And Security Detection Systems). The company has served 101 distinct federal agencies across a combined portfolio of $132.4 million in potential value, with $67.5 million (51%) obligated to date.