SPR vs TTEK

Spirit Aerosystems Holdings Inc.

Spirit AeroSystems Holdings, Inc. designs and manufactures commercial aerostructures worldwide. It operates through three segments: Fuselage Systems, Propulsion Systems, and Wing Systems. The Fuselage Systems segment develops, produces, and markets forward, mid, and rear fuselage sections and systems primarily to aircraft original equipment manufacturers (OEMs); and other structure components of the fuselage, such as floor beams. The Propulsion Systems segment offers nacelles, including thrust reversers; struts/pylons; and related engine structural components primarily to aircraft or engine OEMs; and related spares, as well as maintenance, repair, and overhaul services. The Wing Systems provides wings and wing components, such as flight control surfaces; and other miscellaneous structural parts primarily to aircraft OEMs. The company was formerly known as Mid-Western Aircraft Systems Holdings, Inc. Spirit AeroSystems Holdings, Inc. was founded in 1927 and is headquartered in Wichita, Kansas.

Tetra Tech Inc.

Tetra Tech, Inc. provides consulting and engineering services worldwide. The company operates through Government Services Group (GSG) and Commercial/International Services Group (CIG) segments. The GSG segment offers early data collection and monitoring, data analysis and information technology, science and engineering applied research, engineering design, construction management, and operations and maintenance services; and climate change and energy management consulting, as well as greenhouse gas inventory assessment, certification, reduction, and management services. This segment serves federal, state, and local governments, and development agencies in water resources analysis and water management, environmental monitoring, data analytics, government consulting, waste management, and a range of civil infrastructure master planning and engineering design markets. The CIG segment provides early data collection and monitoring, data analysis and information management, feasibility studies and assessments, science and engineering applied research, engineering design, construction management, and operations and maintenance services. This segment serves natural resources, energy, and utilities markets, as well as civil infrastructure master planning and engineering design markets. Tetra Tech, Inc. was founded in 1966 and is headquartered in Pasadena, California.