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.
Charting True North in Engineering
Arlington, VA
Advanced engineering and integrity services for tanks, piping, and pressure vessels
From design to delivery, we're committed to your success.
Melbourne, FL
Building tools and offering services to quantify human vibration
Plano, TX
Dedicated to computer modeling of rolling bearings
Clifton Park, NY
Innovation by Design
St. Petersburg, FL
Envision the Future
Newport News, VA+1
The Future of Waste Treatment
Indianapolis, IN
Transforming Innovative Ideas into Exceptional Products
Port Saint Lucie, FL
Smart engineering solutions for automotive controls, system validation, and regulatory compliance
Farmington Hills, MI
Full-Service MEP/FP Engineering
New York, NY
Engineering Services, Software, Hardware, Systems
Santa Barbara, CA
Electrical and mechanical engineering solutions for energy, utility, and infrastructure projects
West Palm Beach, FL+2
Innovative Engineering Solutions
Ellisville, MO
We build confidence
Santa Clarita, CA
Results you can count on
Shelton, CT
Collaborate | Innovate | Disrupt
Designing Engineering Solutions for Tomorrow
San Francisco, CA+2
Innovative MEP design, commissioning, and consulting solutions across the Northeast
Albany, NY+1
Robust and effective engineering solutions to complex problems
Bend, OR
The Industry Solution to Safety and Maintenance Challenges
Rexburg, ID
Innovate. Create. Solve.
Excellence in Execution
Lakewood, CO+1