Public engineering firm directory

Find engineering consulting firms by capability and location.

Search engineering firm profiles built for buyers who need a shortlist, not a sales pitch.

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154 Tech LLC

Santa Barbara, CA

Advanced systems engineering, geospatial intelligence, and end-to-end program lifecycle support

WebsitePhone1 office2 credentials
Service: Technical Program ManagementService: End-to-End Program ManagementIndustry: DefenseType: Defense Engineering+30 more

28 Gorilla Engineering

Chandler, AZ

Ruggedized product engineering for the field and the future.

WebsitePhone1 office8 projects
Service: Mechanical Engineering DesignService: Assembly-aware mechanical designIndustry: DefenseType: Defense Engineering+51 more

2IM Group, LLC

Chicago, IL

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.

WebsitePhone1 office5 projects
Service: Highways, Roads, and StreetsService: Roadway geometryIndustry: TransportationType: Civil Engineering+31 more

3Vi, Inc.

San Ramon, CA

Engineering Excellence for a Sustainable Future

WebsitePhone3 offices1 leaders
Service: Systems Engineering & IntegrationService: SCADA and Control SystemsIndustry: TransitType: Electrical Engineering+20 more

A&F Engineering

Indianapolis, IN

Distinguished Transportation & Site Engineering

WebsitePhone1 office1 leaders
Service: Traffic EngineeringService: Traffic Impact StudiesIndustry: TransportationType: Transportation Engineering+17 more

A&R Engineering

Marietta, GA

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.

WebsitePhone1 officeUpdated Jun 2026
Service: Traffic StudiesService: Traffic Impact StudiesIndustry: TransportationType: Civil Engineering+24 more

A2e Technologies

San Diego, CA

Electronic Design Built for Critical Programs

WebsitePhone1 office9 projects
Service: Electronics Design ServicesService: Hardware DesignIndustry: DefenseType: Electrical Engineering+26 more

ACL, Inc.

Engineering for an Integrated World

Website1 projects3 leadersFounded 2015
Service: Roadway EngineeringService: Conceptual Planning and Preliminary DesignIndustry: TransportationType: Transportation Engineering+25 more

ADO Engineering, Inc.

South Elgin, IL

Specialized electrical engineering for aviation, transportation, and facilities projects

WebsitePhone1 officeFounded 2011
Service: Electrical Systems DesignService: Facility Electrical EngineeringIndustry: AviationType: Electrical Engineering+11 more

ADX Research, Inc.

Schaumburg, IL

Innovative Solutions, Exceptional Performance

WebsitePhone1 office6 leaders
Service: System DesignService: Power Electronics System DesignIndustry: ElectronicsType: Electrical Engineering+16 more

AEi Systems, Inc.

Centennial, CO

Analytical HEAVY Lifting

WebsitePhone2 offices9 publications
Service: Worst-Case Circuit Analysis (WCCA)Service: Pre-WCCA design review and assessmentIndustry: ElectronicsType: Electrical Engineering+40 more

AG3 Group, LLC

San Antonio, TX

Civil Services with a Forward-Thinking Approach

WebsitePhone8 offices14 projects
Service: Civil EngineeringService: Transportation DesignIndustry: GovernmentType: Civil Engineering+27 more

AIM Engineering Consultants, Inc.

Pleasanton, CA

Best-In-Class Engineering Expertise

WebsitePhone1 office3 projects
Service: Civil EngineeringService: Municipal Plan CheckingIndustry: TransportationType: Civil Engineering+43 more

AK Aerospace Technology Corporation

We Help Our Customers Make History

Website8 projectsUpdated Jun 2026
Service: Electrical Systems EngineeringService: Avionics DesignIndustry: AerospaceType: Aerospace Engineering+9 more

AKS Engineering & Forestry

Tualatin, OR

Practical Solutions. Designed to Last.

WebsitePhone1 officeFounded 1996
Service: Civil EngineeringService: Site Design & GradingIndustry: InfrastructureType: Civil Engineering+37 more

ANS

Scotch Plains, NJ

Engineering with integrity & purpose.

WebsitePhone1 office7 projects
Service: Civil, Site & Land DevelopmentService: Site Development & PermittingIndustry: Renewable EnergyType: Civil Engineering+59 more

AVCON, INC.

Orlando, FL

Transforming Today's Ideas Into Tomorrow's Reality

WebsitePhone1 office8 projects
Service: Aviation EngineeringService: Airport Planning, Master Plans & Layout PlansIndustry: AviationType: Civil Engineering+31 more

AVEC, Inc.

Blacksburg, VA

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.

WebsitePhone1 officeUpdated Jun 2026
Service: Noise and Vibration EngineeringService: Noise and Vibration Analysis, Prediction, and MeasurementIndustry: AerospaceType: Acoustic Consulting+20 more

AXIS Engineering Group

Rochester, NH

Future-Proof Your Network With Fiber

WebsitePhone1 officeUpdated Jun 2026
Service: Fiber Optic Engineering & Civil PlanningService: Civil Plans & Strand MapsIndustry: TelecommunicationsType: Telecom / RF Engineering+11 more

Accelerate Engineering, LLC

Houston, TX

Crafting sustainable solutions that enrich lives

WebsitePhone1 office2 leaders
Service: Transportation EngineeringService: Roadway DesignIndustry: TransportationType: Civil Engineering+24 more

Accolade Technologies LLC

Annapolis Junction, MD

Empowering organizations through technology

Website1 office2 credentialsFounded 2019
Service: Software DevelopmentService: CybersecurityIndustry: GovernmentType: Software Engineering+28 more

Accompong Engineering Group, LLC

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.

Website4 projects1 leadersFounded 2009
Service: Planning and EngineeringService: Roadway and Highway DesignIndustry: TransportationType: Civil Engineering+16 more

Adico, LLC

Friendswood, TX

Texas Civil Engineering Professionals

WebsitePhone1 office3 projects
Service: Civil EngineeringService: Site DevelopmentIndustry: EducationType: Civil Engineering+42 more

Adkins Engineering and Surveying

Klamath Falls, OR

Serving S. Oregon and N. California Since 1983

Website1 office6 projects3 leaders
Service: Civil EngineeringService: Land Development PlanningIndustry: GovernmentType: Civil Engineering+39 more