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
Ruggedized product engineering for the field and the future.
Project: JASC Pressure Regulating Controller
2IM Group, LLC is a Chicago-based civil, environmental, and transportation engineering practice. Now part of MacKay, it continues to deliver technical solutions across highways, roads, streets, aviation, rail, transit, utilities, and stormwater management systems while offering expanded resources and broader geographic reach.
Project: O'Hare Terminal 3, Concourse L Expansion
Engineering Excellence for a Sustainable Future
Service detail: Systems Engineering & Integration

Distinguished Transportation & Site Engineering
Service detail: Traffic Engineering

A&R Engineering is a civil engineering firm specializing in traffic and transportation engineering, headquartered in Marietta, Georgia. A&R has served clients across Georgia, South Carolina, and Alabama for over 20 years, guiding projects from due diligence through construction completion. The team works with developers, architects, attorneys, and public agencies on retail, residential, industrial, mixed-use, educational, and medical developments, delivering traffic impact studies, intersection and signal design, permitting support, construction oversight, and expert witness services.
Service detail: Traffic Studies
Electronic Design Built for Critical Programs
Project: 600W Power Factor Corrector
Engineering for an Integrated World
Project: Denver Central Business District - Traffic Signal Retiming
Specialized electrical engineering for aviation, transportation, and facilities projects
Service detail: Electrical Systems Design

Innovative Solutions, Exceptional Performance
Service detail: System Design
Analytical HEAVY Lifting
Service detail: Worst-Case Circuit Analysis (WCCA)

Civil Services with a Forward-Thinking Approach
Project: VIA Park and Ride at Stone Oak

Best-In-Class Engineering Expertise
Project: Fremont Blvd/Old Warm Springs Blvd - New Signal
We Help Our Customers Make History
Project: James Webb Space Telescope (JWST) ISIM & NIRSpec Electronics
Practical Solutions. Designed to Last.
Service detail: Civil Engineering
Engineering with integrity & purpose.
Project: The Virginia Vanguard

Transforming Today's Ideas Into Tomorrow's Reality
Project: South Terminal Complex
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
Future-Proof Your Network With Fiber
Service detail: Fiber Optic Engineering & Civil Planning

Crafting sustainable solutions that enrich lives
Service detail: Transportation Engineering

Empowering organizations through technology
Service detail: Software Development

Accompong Engineering Group, LLC offers civil and transportation engineering, planning, and program and project management services. It works with public and private sector clients, including departments of transportation, municipalities, state and federal agencies, contractors, and consultants.
Project: Frederick Douglas Memorial Bridge

Texas Civil Engineering Professionals
Project: Iowa Colony City Engineer

Serving S. Oregon and N. California Since 1983
Project: Klamath Irrigation District - C-Flume Replacement