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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360 Engineering, Inc.

Golden, CO

Engineering & Consulting for the Built Environment

WebsitePhone1 office12 projects
Service: Mechanical & Plumbing EngineeringService: HVAC DesignIndustry: EducationType: Mechanical Engineering+17 more

3D Engineering Solutions, LLC

Cincinnati, OH

Measuring & Modeling Quality

WebsitePhone1 office2 credentials
Service: 3D Laser Scanning & DigitizingService: Short Range 3D Laser ScanningIndustry: AerospaceType: Materials Testing+30 more

A D Marble Co Inc

King of Prussia, PA

Environmental, Cultural, and Water Resources Engineering

Website4 offices5 leadersUpdated Jun 2026
Service: Environmental EngineeringService: Environmental Clearance and PermittingIndustry: FederalType: Environmental Engineering+16 more

A-Tech/Northwest, Inc.

Get an unbiased answer! Our only business is Roof Consulting

Website10 credentialsFounded 1976Updated Jun 2026
Service: Roof ConsultingService: Visual Roof InspectionsIndustry: GovernmentType: Materials Testing+16 more

AAI Environmental Corporation

Ashland City, TN

Professional environmental site assessments and due diligence services nationwide

WebsitePhone1 office6 projects
Service: Phase I Environmental Site Assessment (ESA)Service: Phase II Environmental Site AssessmentIndustry: CommercialType: Environmental Engineering+36 more

ADC Engineering

Hanahan, SC

ADC's Track Record Speaks for Itself

WebsitePhone3 offices17 projects
Service: Civil EngineeringService: Site PlanningIndustry: AviationType: Aviation Engineering+68 more

AEED, Inc.

Chattanooga, TN

Sustainable, Innovative Engineering Solutions

WebsitePhone1 office2 credentials
Service: Engineering, Consulting and DesignService: Mechanical EngineeringIndustry: CommercialType: MEP+55 more

AES Group, Inc.

Parker, CO

Providing Engineering and Architecture Services Since 2002

WebsitePhone1 office4 projects
Service: Civil EngineeringService: Site DesignIndustry: GovernmentType: Architecture & Engineering+40 more

AMT Engineers, Architects, Planners

Athens, GA

Mindful Design, Balanced Innovation, Sustainable Solutions

WebsitePhone1 office4 projects
Service: ArchitectureService: Historic preservation and adaptive reuseIndustry: CommercialType: Architecture & Engineering+35 more

ARW Engineers

Ogden, UT

Responsive, sustainable, and innovative structural solutions.

WebsitePhone1 office1 projects
Service: New Construction DesignService: Adaptive Re-useType: Structural Engineering+8 more

AS Engineering and Consulting, LLC

Marietta, GA

Value engineering to build a safer tomorrow.

WebsitePhone1 office1 leaders
Service: Geotechnical and Geological StudiesService: Subsurface Soil ExplorationIndustry: Land DevelopmentType: Geotechnical Engineering+20 more

AVI, PC

Cheyenne, WY

Engineering Excellence

WebsitePhone2 offices9 projects
Service: TransportationService: Roadway DesignIndustry: GovernmentType: Civil Engineering+53 more

Abbott On Call

Vienna, VA

We Help You Meet the Challenge of Rapidly Changing Technologies in Today's Complex Environment

WebsitePhone1 officeFounded 2002
Service: Engineering ServicesService: Modular System DesignIndustry: DefenseType: Defense Engineering+14 more

Abraxas Energy Consulting

Energy Efficiency & Building Energy Audits

Website5 projects1 credentials2 publications
Service: Energy ConsultingService: Commercial Energy AuditsIndustry: CommercialType: Mechanical Engineering+29 more

Accurate Infrastructure Data, Inc.

We Build Confidence.

Website1 projects5 credentialsFounded 2005
Service: Subsurface Utility EngineeringService: Utility Records ResearchIndustry: GovernmentType: Land Surveying+14 more

Ackerman-Estvold Engineering & Management Consulting, Inc.

Minot, ND

architects + engineers

WebsitePhone4 offices3 projects
Service: Civil EngineeringService: Traffic & Transportation EngineeringIndustry: GovernmentType: Civil Engineering+45 more

Aeroscope, Inc.

Broomfield, CO

Expert engineering consulting and investigation services for aircraft accident investigation and reconstruction.

WebsitePhone2 offices16 projects
Service: Aircraft Accident InvestigationService: Forensic Wreckage AnalysisIndustry: AviationType: Forensic Engineering+15 more

Ahlberg Engineering, Inc.

Marietta, GA

Developing Our Community

WebsitePhone2 offices6 projects
Service: Geotechnical EngineeringService: Preliminary Site Selection StudiesIndustry: CommercialType: Geotechnical Engineering+39 more

Allender Butzke Engineers Inc.

Urbandale, IA

Solid Relationships. Solid Solutions.

WebsitePhone1 office1 projects
Service: Geotechnical EngineeringService: Geotechnical Subsurface ExplorationsIndustry: GovernmentType: Civil Engineering+26 more

Alta Southwest

Tempe, AZ

Alta Southwest is a multi-discipline engineering and environmental consulting firm with offices in Tempe, Tucson, Florence, and Sierra Vista, Arizona. Alta Southwest provides environmental services, land surveying, geotechnical engineering, construction materials testing, and civil engineering to residential, commercial, government, institutional, and industrial clients throughout the Southwest.

WebsitePhone4 offices3 leaders
Service: Environmental ServicesService: Automotive Shredder Residue (ASR) managementIndustry: CommercialType: Environmental Engineering+25 more

Altitude Engineering

Hamilton, MT

Altitude Engineering is a structural engineering firm located in the Bitterroot Valley, just south of Missoula, Montana. Altitude Engineering specializes in steel and aluminum structures and provides economical designs using precast and cast-in-place concrete, masonry, timber, and log framing. Altitude Engineering holds professional engineering registrations in thirteen states: Montana, Colorado, Wyoming, Idaho, Nevada, Alaska, Washington, Utah, Oregon, Arizona, Arkansas, Vermont, and Oklahoma. Representative project experience includes waterpark enclosure structures, aviation hangars, industrial crane pedestals, hospital expansions, and commercial facilities.

WebsitePhone1 office4 projects
Service: Structural Engineering DesignService: Steel and aluminum structuresIndustry: HealthcareType: Structural Engineering+15 more

Alytic, Inc.

King George, VA

Government Contractor, Seaport-e Prime Contract Holder and Experts on Navy Energy Conservation

WebsitePhone1 office3 leaders
Service: Engineering Services and Technical SupportService: Concept Definition and RefinementIndustry: DefenseType: Defense Engineering+28 more

Anautics Inc.

Oklahoma City, OK

Build Things That Matter.

Website1 office7 projects8 leaders
Service: Decision IntelligenceService: Agentic AI DevelopmentIndustry: DefenseType: Software Engineering+18 more

Annex Engineering Group

Columbus, OH

Founded in 2017, Annex Engineering Group is a service-oriented MEP and fire protection engineering firm based in Columbus, Ohio. Annex offers mechanical, electrical, plumbing, and fire protection coordination engineering for projects ranging from office remodels, multi-family residential, and restaurants to manufacturing/industrial facilities and historical renovations. Licensed in 49 states and Washington D.C., Annex serves as the prototype engineer for several national clients, establishing design standards that reduce construction costs and timelines while increasing consistency and quality.

WebsitePhone1 officeFounded 2017
Service: Mechanical EngineeringService: HVAC System DesignIndustry: CommercialType: MEP+33 more