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 projects6 leaders17 credentialsFounded 2003

Project: DEN B-East & C-East Concourse Expansions

Service: Mechanical & Plumbing EngineeringService: HVAC DesignService: Plumbing EngineeringIndustry: EducationIndustry: GovernmentType: Mechanical Engineering+15 more

3D Engineering Solutions, LLC

Cincinnati, OH

Measuring & Modeling Quality

WebsitePhone1 office2 credentialsFounded 2007Updated Jun 2026

Service detail: 3D Laser Scanning & Digitizing

Service: 3D Laser Scanning & DigitizingService: Short Range 3D Laser ScanningService: Long Range Laser ScanningIndustry: AerospaceIndustry: AutomotiveType: Materials Testing+28 more

A D Marble Co Inc

King of Prussia, PA

Environmental, Cultural, and Water Resources Engineering

Website4 offices5 leadersUpdated Jun 2026

Service detail: Environmental Engineering

Service: Environmental EngineeringService: Environmental Clearance and PermittingService: Construction Site Environmental ServicesIndustry: FederalIndustry: Power GenerationType: Environmental Engineering+14 more

A-Tech/Northwest, Inc.

Get an unbiased answer! Our only business is Roof Consulting

Website10 credentialsFounded 1976Updated Jun 2026

Service detail: Roof Consulting

Service: Roof ConsultingService: Visual Roof InspectionsService: Roof Problem AnalysisIndustry: GovernmentIndustry: CommercialType: Materials Testing+14 more

AAI Environmental Corporation

Ashland City, TN

Professional environmental site assessments and due diligence services nationwide

WebsitePhone1 office6 projects1 credentialsFounded 1995Updated Jun 2026

Project: Windmill Farm Initial Planning Study

Service: Phase I Environmental Site Assessment (ESA)Service: Phase II Environmental Site AssessmentService: Phase III Environmental AssessmentIndustry: CommercialIndustry: ResidentialType: Environmental Engineering+34 more

ADC Engineering

Hanahan, SC

ADC's Track Record Speaks for Itself

WebsitePhone3 offices17 projectsUpdated Jun 2026

Project: CHS Taxiways Repair

Service: Civil EngineeringService: Site PlanningService: Site Selection and Property Data ReportIndustry: AviationIndustry: CommercialType: Aviation Engineering+66 more

AEED, Inc.

Chattanooga, TN

Sustainable, Innovative Engineering Solutions

WebsitePhone1 office2 credentialsFounded 2001Updated Jun 2026

Service detail: Engineering, Consulting and Design

Service: Engineering, Consulting and DesignService: Mechanical EngineeringService: Clean Room Design and CommissioningIndustry: CommercialIndustry: HospitalityType: MEP+53 more

AES Group, Inc.

Parker, CO

Providing Engineering and Architecture Services Since 2002

WebsitePhone1 office4 projects5 leaders20 credentialsFounded 1988

Project: Pikes Peak National Cemetery Master Plan & Design

Service: Civil EngineeringService: Site DesignService: GradingIndustry: GovernmentIndustry: FederalType: Architecture & Engineering+38 more

AMT Engineers, Architects, Planners

Athens, GA

Mindful Design, Balanced Innovation, Sustainable Solutions

WebsitePhone1 office4 projects3 leaders9 credentialsUpdated Jun 2026

Project: Food Bank of Northeast Georgia Expansion

Service: ArchitectureService: Historic preservation and adaptive reuseService: Commercial and tenant fit-outIndustry: CommercialIndustry: Historic PreservationType: Architecture & Engineering+33 more

ARW Engineers

Ogden, UT

Responsive, sustainable, and innovative structural solutions.

WebsitePhone1 office1 projects1 credentialsUpdated Jun 2026

Project: USU Noelle E. Cockett Life Sciences Building

Service: New Construction DesignService: Adaptive Re-useService: Seismic Analysis of Existing StructuresType: Structural Engineering+7 more

AS Engineering and Consulting, LLC

Marietta, GA

Value engineering to build a safer tomorrow.

WebsitePhone1 office1 leaders9 credentialsSize Estimate: 1-50 employeesUpdated Jun 2026

Service detail: Geotechnical and Geological Studies

Service: Geotechnical and Geological StudiesService: Subsurface Soil ExplorationService: Bridge Foundation StudiesIndustry: Land DevelopmentIndustry: InfrastructureType: Geotechnical Engineering+18 more

AVI, PC

Cheyenne, WY

Engineering Excellence

WebsitePhone2 offices9 projects6 leaders2 credentialsUpdated Jun 2026

Project: Casper's West Belt Loop Road

Service: TransportationService: Roadway DesignService: Drainage DesignIndustry: GovernmentIndustry: TransportationType: Civil Engineering+51 more

Abbott On Call

Vienna, VA

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

WebsitePhone1 officeFounded 2002Updated Jun 2026

Service detail: Engineering Services

Service: Engineering ServicesService: Modular System DesignService: Flexible System IntegrationIndustry: DefenseIndustry: FederalType: Defense Engineering+12 more

Abraxas Energy Consulting

Energy Efficiency & Building Energy Audits

Website5 projects1 credentials2 publicationsUpdated Jun 2026

Project: FBI Headquarters Energy Audit

Service: Energy ConsultingService: Commercial Energy AuditsService: Retro-CommissioningIndustry: CommercialIndustry: FederalType: Mechanical Engineering+27 more

Accurate Infrastructure Data, Inc.

We Build Confidence.

Website1 projects5 credentialsFounded 2005Size Estimate: Up to 25 employeesUpdated Jun 2026

Project: Johns Hopkins University Applied Physics Lab

Service: Subsurface Utility EngineeringService: Utility Records ResearchService: Surface Feature CorrelationIndustry: GovernmentIndustry: TransportationType: Land Surveying+12 more

Ackerman-Estvold Engineering & Management Consulting, Inc.

Minot, ND

architects + engineers

WebsitePhone4 offices3 projects1 leaders1 credentials1 publications

Project: Big M Building Reimagining

Service: Civil EngineeringService: Traffic & Transportation EngineeringService: Land Planning & DevelopmentIndustry: GovernmentIndustry: EducationType: Civil Engineering+43 more

Aeroscope, Inc.

Broomfield, CO

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

WebsitePhone2 offices16 projects2 leaders7 credentialsFounded 1988

Project: TWA Flight 800

Service: Aircraft Accident InvestigationService: Forensic Wreckage AnalysisService: Computer Modeling and ReconstructionIndustry: AviationIndustry: LegalType: Forensic Engineering+13 more

Ahlberg Engineering, Inc.

Marietta, GA

Developing Our Community

WebsitePhone2 offices6 projects1 leadersFounded 1995Size Estimate: 20+ employees

Project: Marietta First Baptist Church

Service: Geotechnical EngineeringService: Preliminary Site Selection StudiesService: Subsurface ExplorationIndustry: CommercialIndustry: ReligiousType: Geotechnical Engineering+37 more

Allender Butzke Engineers Inc.

Urbandale, IA

Solid Relationships. Solid Solutions.

WebsitePhone1 office1 projects1 credentialsFounded 1992Size Estimate: 35-40 employees

Project: Kreg Tool HQ

Service: Geotechnical EngineeringService: Geotechnical Subsurface ExplorationsService: Seismic Site ClassificationIndustry: GovernmentIndustry: EducationType: Civil Engineering+24 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 leadersUpdated Jun 2026

Service detail: Environmental Services

Service: Environmental ServicesService: Automotive Shredder Residue (ASR) managementService: Environmental complianceIndustry: CommercialIndustry: ResidentialType: Environmental Engineering+23 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 projects1 leadersUpdated Jun 2026

Project: Jay Peak Waterpark Enclosure

Service: Structural Engineering DesignService: Steel and aluminum structuresService: Precast and cast-in-place concreteIndustry: HealthcareIndustry: CommercialType: Structural Engineering+13 more

Alytic, Inc.

King George, VA

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

WebsitePhone1 office3 leadersFounded 2011Updated Jun 2026

Service detail: Engineering Services and Technical Support

Service: Engineering Services and Technical SupportService: Concept Definition and RefinementService: Research and DevelopmentIndustry: DefenseIndustry: FederalType: Defense Engineering+26 more

Anautics Inc.

Oklahoma City, OK

Build Things That Matter.

Website1 office7 projects8 leadersFounded 2020Updated Jun 2026

Project: Captify

Service: Decision IntelligenceService: Agentic AI DevelopmentService: Enterprise Software & AI PlatformsIndustry: DefenseIndustry: ManufacturingType: Software Engineering+16 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 2017Updated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: HVAC System DesignService: Central Plant SystemsIndustry: CommercialIndustry: RetailType: MEP+31 more