O & S Services
Engineering Consulting and Electrical Engineering.
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Find the right engineering partner.
Explore capabilities, project experience, and office locations to build your shortlist.
Explore capabilities, project experience, and office locations to build your shortlist.
Engineering Consulting and Electrical Engineering.
Committed to Innovation and Excellence
Buena Vista, VA+2
Engineering the skies.
Woodstock, VA+3
Your go-to Engineering and Project Management Partner
Dallas, TX
Spark Innovation. Exceed Expectations. Deliver Results.
Lexington Park, MD
Systems Engineering and Cybersecurity.
Where Innovation Meets Execution
Herndon, VA
Smart solutions for smarter business.
Highland, MD
Transforming new technologies into innovative products for over 20 years.
Vista, CA+1
Innovation through foresight
Falls Church, VA
Full-service product design and development from concept through full-scale production.
San Diego, CA
Quality Project Solutions
Los Angeles, CA
Delivering total solutions tailored to customers' current and future needs
Our experts bridge the gap between concept development and delivery
Cybersecurity and Systems Engineering.
Virginia Beach, VA
Mission-Driven Engineering
Next generation technology solutions
La Mesa, CA
Providing professional consultancy and engineering services
Orlando, FL
Specialized Electronic Design, Systems Integration, and Test Engineering
Engineering Excellence for Space and Beyond
Charles Town, WV
We give you space.
Alexandria, VA
A leader in applying systems engineering to Intelligent Transportation Systems (ITS)
New York, NY
Transformation That Moves the Nation. Delivering Airspace Innovation Now.
Washington, DC
Cost analysis, systems engineering, scheduling, and data analytics consulting
Arlington, VA