Jacobs Solutions Inc. provides consulting, technical, engineering, scientific, and project delivery services for the government and private sectors in the United States, Europe, Canada, India, Asia, Australia, New Zealand, the Middle East, and Africa. It operates through Critical Mission Solutions, People & Places Solutions, Divergent Solutions, and PA Consulting segments. The company offers cyber, data analytics, systems and software application integration and consulting, enterprise level and mission IT, design, nuclear, and enterprise level operations and maintenance services; software development, testing, mission integration, program management, research, development, test, evaluation services, training, and environmental remediation services; and other technical consulting solutions, as well as construction and construction management services. It also provides consulting services for consumer and manufacturing, defense and security, energy and utilities, financial services, government, health and life sciences, and transport industries. The company was founded in 1947 and is headquartered in Dallas, Texas.

Trimble Inc. provides technology solutions that enable professionals and field mobile workers to enhance or transform their work processes worldwide. The company's Buildings and Infrastructure segment offers field and office software for project design and visualization; systems to guide and control construction equipment; software for 3D design and data sharing; systems to monitor, track, and manage assets, equipment, and workers; software to share and communicate data; program management solutions for construction owners; 3D conceptual design and modeling software; building information modeling software; enterprise resource planning, project management, and project collaboration solutions; integrated site layout and measurement systems; cost estimating, scheduling, and project controls solutions; and applications for sub-contractors and trades. Its Geospatial segment provides surveying and geospatial products, and geographic information systems. The company's Resources and Utilities segment offers precision agriculture products and services, such as guidance and positioning systems, including autonomous steering systems, automated and variable-rate application and technology systems, and information management solutions; manual and automated navigation guidance for tractors and other farm equipment; solutions to automate application of pesticide and seeding; water solutions; and agricultural software. Its Transportation segment offers solutions for long haul trucking and freight shipper markets; mobility solutions comprising route management, safety and compliance, end-to-end vehicle management, video intelligence, and supply chain communications; and fleet and transportation management systems, analytics, routing, mapping, reporting, and predictive modeling solutions. The company was formerly known as Trimble Navigation Limited and changed its name to Trimble Inc. in October 2016. Trimble Inc. was founded in 1978 and is headquartered in Westminster, Colorado.

AECOM, together with its subsidiaries, provides professional infrastructure consulting services worldwide. It operates in three segments: Americas, International, and AECOM Capital. The company offers planning, consulting, architectural and engineering design, construction and program management, and investment and development services to public and private clients. It is also involved in the investment and development of real estate projects. In addition, the company provides construction services, including building construction and energy, and infrastructure and industrial construction. It serves transportation, water, government, facilities, environmental, and energy sectors. The company was formerly known as AECOM Technology Corporation and changed its name to AECOM in January 2015. AECOM was incorporated in 1980 and is headquartered in Dallas, Texas.

Stantec Inc. provides professional services in the areas of infrastructure and facilities to the public and private sectors in Canada, the United States, and internationally. It offers evaluation, planning, and designing infrastructure solutions; solutions for sustainable water resources, planning, management, and infrastructure; environmental services; integrated architecture, engineering, interior design, and planning solutions for buildings; and energy and resources solutions. The company also provides consulting services in engineering, architecture, interior design, landscape architecture, surveying, environmental sciences, project management, and project economics. In addition, it offers planning and design services to clients in residential, logistics, retail, infrastructure, energy, higher education, and urban regeneration sectors; architectural and interior design, and planning services in the science and technology, commercial workplace, higher education, residential, and hospitality markets. Further, the company provides transportation advisory, transport engineering, and technical design; project delivery consultancy services for mining, resources, and industrial infrastructure projects; paleontological and archaeological services for the rail, transportation, water, and power and energy sectors; and environmental and cultural resource compliance services. Additionally, it offers consulting services in sustainable building design, energy infrastructure upgrades, sustainable district heating network, and e-mobility; and planning, design, construction administration, commissioning, maintenance, decommissioning, and remediation services. The company was formerly known as Stanley Technology Group Inc. and changed its name to Stantec Inc. in October 1998. Stantec Inc. was founded in 1954 and is headquartered in Edmonton, Canada.

Tetra Tech, Inc. provides consulting and engineering services in the United States and internationally. The company operates through two segments, Government Services Group (GSG) and Commercial/International Services Group (CIG). The GSG segment offers early data collection and monitoring, data analysis and information management, science and engineering applied research, engineering design, project 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, project management, and operations and maintenance services; and environmental remediation and reconstruction services, and industrial water treatment services. This segment serves natural resources, energy, and utilities markets, as well as sustainable infrastructure master planning and engineering design for facilities, transportation, and local development projects. Tetra Tech, Inc. was founded in 1966 and is headquartered in Pasadena, California.

Fluor Corporation provides engineering, procurement, and construction (EPC); fabrication and modularization; operation and maintenance; asset integrity; and project management services worldwide. The company operates through Energy Solutions, Urban Solutions, Mission Solutions, and Other segments. The Energy Solutions segment provides solutions to the energy transition markets, including asset decarbonization, carbon capture, renewable fuels, waste-to-energy, green chemicals, hydrogen, nuclear power, and other low-carbon energy sources. It also provides consulting services, including feasibility studies, process assessments, and project finance structuring; and a range of services for small modular reactor technologies, conventional and advanced nuclear reactor technologies. This segment serves the production and fuels, chemicals, LNG, power markets, chemicals and petrochemical industries. The Urban Solutions segment offers EPC and project management services to the infrastructure, advanced technologies, life sciences, and mining and metals industries. This segment also provides staffing services to the company and third-party clients with technical, professional, and craft resources on a contract or permanent placement basis. The Mission Solutions segment offers technical solutions to the U.S. and other governments. It also delivers solutions for nuclear security and operation, nuclear waste management, and laboratory management; and operation and maintenance, logistics, EPC, and life support solutions for mission-critical facilities across U.S. military service organizations. This segment offers site management, environmental remediation, and decommissioning for nuclear remediation at governmental facilities, as well as services to commercial nuclear clients. Fluor Corporation was founded in 1912 and is headquartered in Irving, Texas.

Tutor Perini Corporation, a construction company, provides diversified general contracting, construction management, and design-build services to private customers and public agencies in the United States and internationally. It operates through three segments: Civil, Building, and Specialty Contractors. The Civil segment engages in the public works construction and the replacement and reconstruction of infrastructure; and offers contracting services, including construction and rehabilitation of highways, bridges, tunnels, mass-transit systems, military defense facilities, and water management and wastewater treatment facilities, as well as provides drilling, foundation, and excavation support for shoring, bridges, piers, roads, and highway projects. The Building segment offers range of services in various specialized building markets, such as hospitality and gaming, transportation, health care, commercial offices, government facilities, sports and entertainment, education, correctional and detention facilities, biotech, pharmaceutical, industrial, and technology. The Specialty Contractors segment provides electrical, mechanical, plumbing, and fire protection systems, as well as heating, ventilation, and air conditioning services (HVAC) for civil and building construction projects in industrial, commercial, hospitality and gaming, and mass-transit end markets. It also offers pre-construction planning and project management services comprising planning and scheduling of the manpower, equipment, materials, and subcontractor services; and self-performed construction services consisting of site work, concrete forming and placement, and steel erection. The company was formerly known as Perini Corporation and changed its name to Tutor Perini Corporation in May 2009. Tutor Perini Corporation was founded in 1894 and is headquartered in Sylmar, California.

Bowman Consulting Group Ltd. provides a range of real estate, energy, infrastructure, and environmental management solutions in the United States. It offers civil and site engineering services, such as conceptual land planning, environmental consulting and permitting, planning/zoning and entitlements, roadway and highway designs, erosion and sediment designs, stormwater management designs, construction administration, traffic studies, floodplain studies, and utility relocation designs; and commissioning and energy efficiency services comprise construction observation, direct systems functional performance testing, system development readiness checklist, post occupancy review, review of construction documents, deferred/seasonal functional testing, final commissioning report, and commissioning review of submittals. The company also provides construction management services, including constructability review, value engineering, budgeting and cost estimating, interagency and utility coordination, onsite observation and report evaluation, public communication and outreach, and resident engineer services, as well as bid solicitation, documentation, and preparation services; and environmental consulting services consisting of wetlands and waters of the U.S. delineations, natural resources inventories, wildlife and vegetation surveys, threatened and endangered species surveys, endangered species conservation and management, wetland creation and enhancement design, NEPA documentation, section 404/401 permitting and compliance, NPDES permitting, and phase I environmental site assessment. In addition, it offers landscape architecture, land procurement and right-of-way acquisition, structural engineering, surveying and geospatial engineering, and transportation and water resources engineering services, as well as mechanical, electrical, and plumbing engineering services. The company was incorporated in 1995 and is headquartered in Reston, Virginia.