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
Air. Land. Water.
Service detail: Air Quality and Environmental Compliance

Benefit from an innovative and diverse range of surveying and engineering experience.
Project: Admiration Foods Facility
Innovative and Practical Engineering Solutions
Service detail: Structural Engineering

Trusted Engineering and Integration Since 1977
Service detail: Process Control and SCADA Systems
Achieving military interoperability
Service detail: Foreign Military Sales Support

Scientific and engineering consulting services for aerospace, defense, and commercial applications.
Service detail: Systems Engineering

Expert fire protection engineering and building code consulting solutions
Service detail: Code Compliance

Cost Effective Engineering
Service detail: Naval Architecture and Marine Engineering

Elevate Your Defense Strategy
Service detail: Program Management

ASG Solutions Corporation is a San Diego-based professional services provider supporting critical federal and military missions globally. It specializes in delivering tailored solutions across engineering, construction management, environmental services, information technology, and defense logistics.
Project: Technical Support Services for NAVFAC SE DCBL/DC 4
ATCSI LLC delivers specialized services and technical solutions in air traffic control systems integration, shipboard systems, manned and unmanned air systems, and air traffic control procedures and policy development. It provides program management, task-based curriculum development, technical training, information analysis, digital data services, systems engineering, and strategic project planning. With a workforce of subject matter experts, the team supports complex aerospace, defense, and maritime programs.
Project: Naval Air Traffic Management Program Support
AVEC, Inc. provides expert technical assistance in the analysis and control of noise and vibration in mechanical systems. Capabilities span phased array design and software, tire-pavement noise measurement (OBSI), road surface sound absorption (ROSSA), propeller noise prediction, structural analysis using FEM and BEM, unsteady aerodynamics, and machinery fault diagnostics. Past clients include NASA Langley Research Center, the Japan Aerospace Exploration Agency, Boeing, Siemens, and the US Air Force.
Service detail: Noise and Vibration Engineering
Unwavering Quality. Reliable Results.
Project: Pierre SD Wastewater Treatment Plant

Empowering organizations through technology
Service detail: Software Development

Improving Mobility and Access
Project: Link21 Program's New Transbay Rail Crossing

Strategic Solutions delivered with Tactical Speed and Innovation
Service detail: Engineering Services and Applied Science

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

Afridi Associates provides professional consulting engineering services specializing in transportation infrastructure, public buildings, and geotechnical engineering. It delivers solutions for highways, bridges, rail systems, airport terminals, and waterfront structures across the northeastern United States.
Project: JFK Terminal One Reconstruction

Engineering Innovation Forward
Project: Burnett Bayland Park
Aiken Engineering designs and evaluates specialized equipment and components for critical service applications.
Service detail: Engineering Analysis
A leader in the field of air quality for over 40 years.
Project: National Park Service Air Quality Conditions & Trends Website

Engineering Together
Project: Wallops Mission Operations Command Center
No project too large, no requirement too detailed.
Service detail: Electrical Engineering