- Construction (26)
- Defense & Private Military (77)
- Humanitarian Relief (6)
- Maritime Security (1)
- Offshore Oil & Gas (5)
- U.S. Embassies and Consulates (0)
SOC
SOC is a Day & Zimmermann company providing security, engineering, operations and staffing services for U.S. government missions. Its teams protect personnel and facilities, support remote and high-risk environments, and deliver cleared talent and operational services worldwide.
SOC is widely known in the contractor community for:
- Protective security and mission support
- Facilities operations, maintenance and logistics
- Architecture and engineering for secure facilities
- Cleared staffing and technical workforce support
Average Salary: Varies by role, location, experience and contract.
PKL Services, Inc.
PKL Services, Inc. provides aviation maintenance, training and logistics support for military and government customers in domestic and overseas locations.
PKL Services is widely known in the contractor community for:
- Aircraft maintenance and sustainment
- Technical instruction and training
- Aviation logistics and program management
Average Salary: Varies by role, location, experience and contract.
Careers and current opportunities | Company contact form. The company contact page lists its Human Resources leadership.
Leidos
Leidos provides science, engineering and technology services for government and commercial customers. Its teams support defense and intelligence missions, digital modernization, healthcare systems and civil infrastructure, combining technical expertise with operations and mission support.
Leidos is widely known in the contractor community for:
- Defense and intelligence mission support
- Cybersecurity and digital modernization
- Engineering, integration and advanced systems
- Healthcare and civil infrastructure technology
Average Salary: Varies by role, location, experience and contract.
Insitu Inc.
Insitu Inc. is a Boeing subsidiary developing and supporting uncrewed aircraft systems for defense, government and commercial customers.
Insitu is widely known in the contractor community for:
- ScanEagle and Integrator aircraft systems
- ISR payloads, mission software and ground control
- Operator training, field operations and sustainment
Average Salary: Varies by role, location, experience and contract.
General Atomics
General Atomics develops advanced defense and energy technologies through its family of affiliated companies. Its work spans remotely piloted aircraft, airborne sensors, electromagnetic systems and nuclear fusion research. The listed contact provides careers-site password and login support.
General Atomics is widely known in the contractor community for:
- Remotely piloted aircraft and mission support
- Electromagnetic and advanced defense systems
- Sensors, electronics and laser technologies
- Fusion energy research and engineering
Average Salary: Varies by role, location, experience and contract.
Fluor Corporation
Fluor Corporation is a global engineering, procurement and construction company delivering energy, industrial, infrastructure and government projects. Its work spans project design through construction, operations and maintenance. Its Mission Solutions teams support government facilities, military base operations and critical nuclear programs.
Fluor is widely known in the contractor community for:
- Engineering, procurement and construction
- Energy and industrial facilities
- Infrastructure and project management
- Government facilities and base operations
Average Salary: Varies by role, location, experience and contract.
The Boeing Company
The Boeing Company designs, manufactures and supports commercial aircraft, defense systems and space technologies for customers worldwide. Its work spans engineering, manufacturing, aviation services and mission support. The listed phone provides technical assistance with job applications.
Boeing is widely known in the contractor community for:
- Commercial and military aircraft
- Defense and space systems
- Aerospace engineering and manufacturing
- Aircraft services and sustainment
Average Salary: Varies by role, location, experience and contract.
CB&I
CB&I provides storage and asset-management solutions for energy and industrial facilities worldwide. Its work includes tanks, terminals, engineering, construction, operations, maintenance and decommissioning.
CB&I is widely known in the contractor community for:
- Tanks, terminals and storage infrastructure
- Engineering, fabrication and construction
- Asset operations and maintenance
- Wells, lifecycle services and decommissioning
Average Salary: Varies by role, location, experience and contract.
For current vacancies and applications, visit CB&I Careers.
Chenega Corporation
Chenega Corporation is an Alaska Native corporation headquartered in Anchorage, Alaska. Its businesses provide government and commercial services across security, technology, military and intelligence support, healthcare, environmental services and facilities operations. Its recruiting email also assists with application technical issues.
Chenega is widely known in the contractor community for:
- Security and protective services
- Military and intelligence mission support
- IT, engineering and professional services
- Healthcare, environmental and facilities support
Average Salary: Varies by role, location, experience and contract.
Michael Baker International
Michael Baker International provides engineering, architecture, consulting and technology services for infrastructure and government projects.
Michael Baker International is widely known in the contractor community for:
- Transportation, civil engineering and infrastructure design
- Architecture, environmental and construction management
- Federal programs, geospatial and digital solutions
Average Salary: Varies by role, location, experience and contract.
Anduril Industries
Anduril Industries develops autonomous defense systems and software for U.S. and allied missions. Its Lattice platform connects sensors and autonomous air, land and maritime systems, supporting surveillance, command and control, force protection and advanced defense manufacturing.
Anduril is widely known in the contractor community for:
- Autonomous air, land and maritime systems
- Lattice command and control software
- Counter-drone and force protection technology
- Defense engineering and manufacturing
Average Salary: Varies by role, location, experience and contract.
WSP (including former Parsons Brinckerhoff)
WSP (including former Parsons Brinckerhoff) provides engineering, environmental and advisory services for buildings, transport, energy and government infrastructure. Parsons Brinckerhoff joined WSP in 2014 and now operates under its brand. The listed email serves the UK early careers recruitment team.
WSP is widely known in the contractor community for:
- Transport and infrastructure engineering
- Building design and construction management
- Environmental and water consulting
- Energy and federal program support
Average Salary: Varies by role, location, experience and contract.
L3Harris Technologies
L3Harris Technologies develops aerospace and defense technology across air, land, sea, space and cyber. Its teams provide communications, sensing, electronic systems and propulsion products for government and commercial customers. The listed email handles questions about recruiter legitimacy.
L3Harris is widely known in the contractor community for:
- Space and airborne mission systems
- Secure communications and electronic warfare
- Integrated defense and sensing technology
- Rocket propulsion and aerospace engineering
Average Salary: Varies by role, location, experience and contract.
International Medical Corps
International Medical Corps is a humanitarian nonprofit that delivers emergency medical care and related services to people affected by conflict, disasters and disease. It also trains local healthcare workers and helps communities strengthen health systems and become more self-reliant.
International Medical Corps is widely known in the contractor community for:
- Emergency medical care and disaster response
- Health, nutrition and mental health programs
- Water, sanitation and hygiene services
- Training local healthcare workers
Average Salary: Varies by role, location, experience and contract.
Valiant Integrated Services
Valiant Integrated Services provides training, readiness and mission support for government customers worldwide. Its services include military simulation, language support, intelligence analysis and logistics.
Valiant is widely known in the contractor community for:
- Training, simulation and readiness
- Linguist and critical mission support
- Intelligence and analysis
- Logistics and contingency operations
Average Salary: Varies by role, location, experience and contract.
Tetra Tech
Tetra Tech provides consulting, engineering and technical services for government and commercial customers. Its scientists, engineers and specialists support water, environmental, infrastructure and defense programs, combining technical expertise with digital tools to solve complex challenges worldwide.
Tetra Tech is widely known in the contractor community for:
- Water and environmental engineering
- Infrastructure design and construction management
- Defense services and federal technology support
- Disaster recovery and international development
Average Salary: Varies by role, location, experience and contract.
BL Harbert International
BL Harbert International is a U.S. construction company delivering design-build, construction management and general contracting projects worldwide. Its international teams build diplomatic facilities and other complex government infrastructure, supported by in-house engineering and global logistics.
BL Harbert is widely known in the contractor community for:
- International and federal construction
- Design-build and construction management
- Secure diplomatic and military facilities
- Engineering, procurement and logistics
Average Salary: Varies by role, location, experience and contract.
Versar Global Solutions
Versar Global Solutions provides mission lifecycle services for government and commercial customers across natural, built and digital environments. Its teams support military installations, environmental programs and complex infrastructure through planning, engineering, program management and worldwide operations.
Versar Global Solutions is widely known in the contractor community for:
- Base operations, maintenance and logistics
- Environmental management and remediation
- Engineering and construction program management
- Geospatial intelligence and digital mission support
Average Salary: Varies by role, location, experience and contract.
Aramco
Aramco is an integrated energy and chemicals company headquartered in Saudi Arabia. Its operations span oil and gas exploration, production, refining, chemicals and technology development. The listed phone reaches Aramco Americas Staffing Services.
Aramco is widely known in the contractor community for:
- Oil and gas exploration and production
- Refining, chemicals and downstream operations
- Engineering and large-scale energy projects
- Energy research, technology and innovation
Average Salary: Varies by role, location, experience and contract.
MANTECH
MANTECH provides advanced technology and mission support for U.S. defense, intelligence and federal civilian customers. Its teams support secure digital systems, cyber operations and complex engineering programs.
MANTECH is widely known in the contractor community for:
- Cybersecurity and cyber operations
- Data, artificial intelligence and digital transformation
- Intelligent engineering and systems integration
- Mission support and national security technology
Average Salary: Varies by role, location, experience and contract.
Mace Consult
Mace Consult provides programme, project and cost management for infrastructure and the built environment. Formerly part of Mace Group, it became an independent business in March 2026. The email below is for emerging talent recruitment.
Mace Consult is widely known in the contractor community for:
- Programme and project management
- Cost and commercial consultancy
- Major infrastructure and real estate programmes
- Defence and public-sector project delivery
Average Salary: Varies by role, location, experience and contract.
Booz Allen Hamilton
Booz Allen Hamilton is a U.S. technology and consulting company serving defense, intelligence and civilian government customers. Its teams develop advanced solutions in artificial intelligence, cybersecurity, engineering and mission technology. The listed email is its candidate help desk for application support.
Booz Allen is widely known in the contractor community for:
- Defense and national security technology
- Cybersecurity and artificial intelligence
- Engineering and digital modernization
- Government consulting and mission support
Average Salary: Varies by role, location, experience and contract.
V2X (formerly Vectrus)
V2X (formerly Vectrus) delivers mission support for government and commercial customers through operations, logistics, aerospace, training and technology. Formed by the 2022 merger of Vectrus and Vertex, it supports missions worldwide. The listed email is recruiter Ariona Enyeart’s public contact for Indianapolis engineering opportunities.
V2X is widely known in the contractor community for:
- Operations and logistics support
- Aerospace maintenance and sustainment
- Mission technology and engineering
- Training and readiness
Average Salary: Varies by role, location, experience and contract.
Baker Hughes
Baker Hughes is an energy technology company providing products and services for oil and gas, energy and industrial customers. Its teams design, manufacture and service technologies for oilfield operations, energy production, industrial processes and more efficient, lower-emission operations.
Baker Hughes is widely known in the contractor community for:
- Oilfield services and equipment
- Energy and industrial technology
- Engineering, manufacturing and field services
- Digital solutions and emissions reduction
Average Salary: Varies by role, location, experience and contract.
General Dynamics Mission Systems
General Dynamics Mission Systems develops mission-critical defense and intelligence technology for land, sea, air, space and cyber operations. It combines the former General Dynamics Advanced Information Systems and C4 Systems businesses.
GD Mission Systems is widely known in the contractor community for:
- Secure communications and command systems
- Mission systems for military platforms
- Space, intelligence and cyber technology
- Engineering, integration and technical support
Average Salary: Varies by role, location, experience and contract.
