KBR subsidiaries

KSL Services Joint Venture operates a contractor of industrial building, construction building, and maintenance services. The Company offers products for construction of commercial, institutional, and office buildings. The company is based in Los Alamos, New Mexico. KSL Services Joint Venture operates as a subsidiary of Kellogg Brown & Root Services, Inc.

SGT, Inc. provides engineering, mission operations, scientific, and IT service solutions to the United States government for space programs, national security, and civilian operations. It supports the complete engineering life cycle of missions, including advanced mission formulation studies, preliminary and detailed design, fabrication and assembly, integration and testing, verification and validation, and launch and on-orbit operations; and provides end-to-end IT services for technical and business operations facilities, science and archival data centers, mission control centers, ground data acquisition stations, campus-wide network management, and various other support areas. The company also provides algorithm development, numerical analysis, high performance computing, science S/W development, earth discipline science support, high precision orbits/force model development, geophysical/climate modeling, instrument calibration/validation, science data processing systems, science data management systems, science data analysis, simulations, error analysis, and geographic information systems; and supports the life cycle of mission operations, space systems, ground systems, extravehicular activity, satellite operations, and other related services. SGT, Inc. was formerly known as Stinger Ghaffarian Technologies, Inc. The company was incorporated in 1988 and is based in Greenbelt, Maryland with locations in Seabrook, Maryland; Wallops Island, Virginia; Webster, Texas; Colorado Springs, Colorado; Kennedy Space Center, Florida; Moffett Field, California; Stennis Space Center, Missouri; Sioux Falls, South Dakota; and Cambridge, Massachusetts.

Petrin Corporation, an industrial specialty construction company, provides industrial insulation, coatings, fireproofing, and scaffolding services to clients in Southeast and Midwest. Its services include industrial insulation, blasting and coatings, asbestos abatement, lead abatement, energy audits, fireproofing, scaffolding, material sales, and fabrication. The company distributes and fabricates insulation materials, such as abatement supplies, acoustical products, adhesives, aluminum and stainless jacketing, blanket supplies, calcium silicates, cellular glasses, ceramic fibers, cut and roll metals, expanded perlites, fabricated insulation ells, fabricated metal ells, mastics, mineral wools, removable covers, safety supplies, urethane, and wire meshes, as well as pins, fasteners, and studs. It serves various industries, such as chemical, refining, marine, petrochemical, power, pulp and paper, sugar mills, and agriculture. The company was founded in 1972 and is headquartered in Port Allen, Louisiana with a regional office in El Dorado, Arkansas. As of December 2015, Petrin Corporation operates as a subsidiary of Brown & Root Industrial Services LLC.