154 Tech LLC
Santa Barbara, CAAdvanced systems engineering, geospatial intelligence, and end-to-end program lifecycle support
Service detail: Technical Program Management
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Advanced systems engineering, geospatial intelligence, and end-to-end program lifecycle support
Service detail: Technical Program Management

Energy by Design
Project: JMU Carrier Library Renovation, Restoration, and Expansion

Specializing in geotechnical, structural, and civil engineering excellence
Project: Big Beaver Bridge
Providing responsive, innovative solutions in aviation, engineering, logistics, and program management services.
Service detail: Engineering Support

When Safety Is Critical.
Project: Applied Avionics DCU120 DAL A Certification Support
Global Airborne Mission Solutions
Service detail: ISR Operations

Rapid Response. Proven Expertise. Global Reach.
Service detail: Aviation Engineering
Planning Solutions for Complex Sites
Service detail: Land Surveying

Leading in Asphalt Testing and Equipment
Service detail: Asphalt Material Testing Services

Advantus Engineers is a Pittsburgh-based engineering consulting practice founded in 2004, specializing in building commissioning, sustainability consulting, MEP assessments, construction quality assurance, and environmental compliance. It serves public, institutional, and commercial clients across the Pittsburgh region. Over more than two decades, the practice has supported LEED certifications, water quality programs, and on-call MEP engineering for clients including the Pittsburgh Water and Sewer Authority and the David L. Lawrence Convention Center.
Project: Western Butler County Authority Administration Building
Expert Counter-UAS Consulting Services
Service detail: Threat Assessment & Risk Analysis
Strength in design. Safety in flight.
Service detail: Aerospace Structural Engineering
A leader in the field of air quality for over 40 years.
Project: National Park Service Air Quality Conditions & Trends Website
Integrated Facility Maintenance Services
Service detail: Base Operations
American Made. Warfighter Ready.
Service detail: Aerospace & Defense Manufacturing

Innovative Lean Engineering
Service detail: Engineering Services
Allied Erecting & Dismantling Co., Inc. (AED) specializes in the selective and mass dismantling of complex industrial structures. Established in 1973 in Youngstown, Ohio, AED has completed some of the largest and most challenging industrial dismantling projects in the United States, pioneering techniques and equipment for heavy industrial decommissioning. It operates as a wholly owned subsidiary of Allied Consolidated Industries, Inc. (ACI) and draws on sister companies specializing in scrap processing, structural and civil engineering, mechanical engineering, industrial manufacturing, and heavy fabrication.
Service detail: Industrial Dismantling

Expert commissioning and MEP engineering solutions delivering precise building performance and sustainable design.
Project: Mt. Greenwood - Annex II

Solutions for Sustainable Designs
Project: Brown University Brook Street Residence Halls
Fresh ideas from dedicated water and wastewater experts.
Service detail: Wastewater Engineering
Founded in 1967, Applied Technical Services (ATS) is a nationwide testing, inspection, and certification (TIC) provider with expertise in structural engineering, forensic engineering, calibration, and materials testing. ATS serves more than 15 industries including aerospace, automotive, defense, healthcare, and manufacturing, evaluating raw materials, individual components, and complex systems through metallurgy and materials testing, chemical analysis, nondestructive testing, mechanical testing, and calibration services. ATS joined SGS, the world's leading TIC company, while continuing to operate under its own brand and service standards.
Service detail: Calibration

Arnold & Associates, Inc. (A&A) is an Operations and Maintenance (O&M) engineering consulting practice founded in 1988 and based in Roswell, Georgia. It provides professional engineering, training, technical O&M consulting, and staff support services. Its capabilities serve industrial and utility systems, steam and electric power generation, building HVAC systems, and similar facility operations. The practice specializes in the efficient management and utilization of personnel, energy, rotating equipment, boilers, steam and combustion turbines, and diesel-engine-driven components. It also offers technical recruiting, energy conservation surveys, and professional power engineering licensing preparation seminars.
Service detail: Operations & Maintenance Consulting

Bridging the Gap Between Operations and Technology
Project: Special Operations Command (SOCOM) Targeting and Training Element (STTE) Contract

A Leading Innovator in Engineering and Design Services
Project: Hayti, MO - Railcar to Marine Transfer Facility