Engineered Air Systems Inc. (EASI)
Located in St. Louis, MO, Engineered Air Systems, Inc. (EASI) is the charter Engineered Support Systems operating unit. EASI designs and engineers a wide range of military support equipment including nuclear/biological/chemical defense systems, environmental control systems and water storage, purification and distribution systems.

Engineered Environments, Inc. (EEI)
Operating from a facility in Cincinnati, Ohio, Engineered Environments is a well established company that provides engineering and manufacturing of customized air conditioners, heat exchangers, chillers, air filtration systems, environmental control units and aircraft ground support equipment for use in commercial and military industries. EEi was acquired by the Company in 2003.

Engineered Electric/Fermont (FERMONT)
Located in Bridgeport, CT, Engineered Electric/Fermont (Fermont) is the leading supplier of military generator sets and power systems to the U.S. military. Fermont was acquired by the Company in 1999.

Keco Industries (KECO)
Operating from a facility in Florence, KY, Keco Industries, Inc. (Keco) engineers and manufactures military support equipment including environmental control systems, water purification systems and refrigeration equipment. Keco was acquired by the Company in 1998.

Engineered Coil, d.b.a. Marlo Coil (MARLO)
Engineered Coil/Marlo Coil, (Marlo Coil) a leading designer and manufacturer of custom engineered coils, refrigeration plants and air handling units, was acquired by the Company in 1998. Marlo Coil is the largest supplier of marine coils, air-handling units, product coolers and refrigeration plants to the U.S. Navy. Its operations are located in High Ridge, MO.

Mobilized Systems Inc. (MSI)
Located in Cincinnati, Ohio, Mobilized Systems designs, manufactures and tests highly specialized trailers, shelters and environmental control systems primarily for the defense industry.  MSI was acquired by the Company in 2005.

Pivotal Power Inc. (Pivotal Power)
Located in Halifax, Nova Scotia, Canada, Pivotal Power designs and manufactures full MIL-SPEC power conversion equipment, inverters, battery chargers and other power management systems for shipboard, ground-based and airborne communications and weapons platforms. Pivotal Power was acquired by the Company in 2003.

Prospective Computer Analysts Incorporated (PCA)
Headquartered in Garden City, NY, PCA is a designer and provider of proprietary electronic test equipment, software and engineering services to primarily military customers throughout the world.  PCA’s products are critical for the testing of electronic warfare systems and avionics on military aircraft and include automatic test systems, hot mock-up benches, antenna coupler sets, test software and video-enhanced, computer-based maintenance and training aids.  PCA was acquired by the Company in 2005.

Radian, Inc. (RADIAN)
Radian is a full-service engineering and technical support services provider with four divisions: Engineering, Advanced Technology, Asset Protection Systems, and Systems Integration Services. The Engineering Division has a long history of providing comprehensive support to Department of Defense (DoD) weapon system managers. The Advanced Technology Division applies leading edge technology by combining traditional engineering practices with state-of-the-art automation tools. The Asset Protection Systems Division provides government and commercial clients the full spectrum of protection to human, physical plant, and information resources assets. The Systems Integration Services Division combines singular components, operable modules and subassemblies, and/or systems and equipment in such fashion as to provide a unique product or outcome. Radian was acquired by the Company in 2002.

Spacelink International, LLC (Spacelink)
Headquartered in Dulles, VA, Spacelink is involved in the design, integration, operation and maintenance of deployed satellite and wireless networks for the U.S. Department of Defense (DoD), the U.S. intelligence community and other forward deployed federal agencies and multinational organizations worldwide.  Spacelink was acquired by the Company in 2005.

Systems & Electronics Inc. (SEI)
Headquartered in St. Louis, MO, Systems & Electronics Inc. (SEI) is a leading designer and manufacturer of military support equipment including aircraft loading systems, heavy transportation systems, fire-control support systems, radar systems, specialized avionics testing equipment and material handling equipment. SEI's manufacturing facility is located in West Plains, MO. SEI was acquired by the Company in 1999.

Technical and Management Services Corporation (TAMSCO)
Technical and Management Services Corporation (TAMSCO), a Calverton, Maryland-based provider of information technology (IT) logistics and digitization services and a designer and integrator of telecommunications systems primarily for the U.S. Department of Defense (DoD). TAMSCO was acquired by the Company in 2003.

Universal Power Systems, Inc. (UPSI)
UPSI designs, manufactures and sells true on-line UPS systems and power conditioning equipment that meet the demanding standards of portability and functionality in hazardous and harsh environments around the globe. UPSI focuses on transportable, deployable, rack-mount, single-phase units in the 650VA (volt amperes) to 6000VA power range. Since its founding in 1989, UPSI has fielded in excess of 15,000 units in over 100 countries and its equipment has been used extensively in several military engagements including Desert Storm, Panama, Somalia, Bosnia and Kosovo. UPSI was acquired by the Company in 2002.

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