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

3J Consulting, Inc.

Your Partner in Civil Engineering & Community Planning

Website8 projects6 leaders6 credentials
Service: Civil EngineeringService: Grading & DrainageIndustry: Land DevelopmentType: Civil Engineering+41 more

4Ward Land Surveying

Austin, TX

4Ward Land Surveying is a full-service land surveying and geospatial solutions firm founded in 2009 and based in Austin, Texas. Operating throughout the state, the firm provides land surveying, construction layout, aerial LiDAR, drone mapping, 3-D laser scanning, and GIS solutions for landowners, investors, developers, architects, engineers, and general contractors. In 2024, 4Ward launched a proprietary client portal for interactive delivery of survey and GIS data.

WebsitePhone1 office1 credentials
Service: Land SurveyingService: Construction LayoutType: Land Surveying+4 more

ABNA Engineering, Inc.

St. Louis, MO

Civil & Structural Engineering, Design Services, General Contracting, and Construction Management

WebsitePhone3 offices4 projects
Service: Civil EngineeringService: Water Resources EngineeringIndustry: InfrastructureType: Civil Engineering+43 more

ACT Engineers, Inc.

Robbinsville, NJ

Civil, Coastal, and Environmental Engineering and Consulting Practice

WebsitePhone3 offices5 projects
Service: Civil/Site EngineeringService: Coastal EngineeringIndustry: GovernmentType: Civil Engineering+30 more

ADP Resources

Dallas, OR

Engineering Services: Agility. Accuracy. Integrity.

WebsitePhone1 office8 leaders
Service: Outside and Inside Plant ServicesService: Makeready Engineering NESC and GO95Industry: TelecommunicationsType: Telecom / RF Engineering+29 more

AED Energy Services

Wyomissing, PA

Designing America's Energy Lifelines

WebsitePhone4 offices9 leaders
Service: Chemical and Process DesignService: Documentation and AnalysisIndustry: Oil & GasType: Chemical Engineering+66 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

AI Engineers, Inc.

Cromwell, CT

Improving Life. By Design.

WebsitePhone1 office4 projects
Service: BridgesService: Bridge structural designIndustry: FederalType: Civil Engineering+47 more

ARRO Consulting, Inc.

Lititz, PA

Your trusted partner for municipal engineering.

WebsitePhone13 offices8 projects
Service: Civil & MunicipalService: Appointed Engineer representationIndustry: GovernmentType: Civil Engineering+52 more

ASUSE Incorporated

Tempe, AZ

Transform Your Vision Into Reality with ASUSE

WebsitePhone1 office1 projects
Service: Engineering DesignService: Power Distribution DesignIndustry: Power GenerationType: Design-Build+23 more

ATCO Communications Services, LLC

Snohomish, WA

ATCO Communications Services, LLC is a contract engineering firm established in 1978 with headquarters in Snohomish, Washington and a Midwest office in Fort Wayne, Indiana. It specializes in telecom engineering, outside plant (OSP) engineering, permitting, right-of-way and easement services, geospatial services, and joint-use support for private and public markets nationwide.

WebsitePhone3 officesFounded 1978
Service: Telecom EngineeringService: OSP EngineeringIndustry: TelecommunicationsType: Telecom / RF Engineering+7 more

ATCS, Inc.

Engineering Innovative Solutions

Website9 leadersUpdated Jun 2026
Service: Environmental PlanningService: Air & Noise AbatementIndustry: TransportationType: Civil Engineering+28 more

Adams, Rehmann & Heggan Associates, Inc.

Hammonton, NJ

You See Us Every Day

Website1 office1 projects10 leaders
Service: Civil and Municipal EngineeringService: Road and Infrastructure DesignIndustry: GovernmentType: Civil Engineering+40 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

AeroFrohne LLC

The New Standard in Reality Capture & 3D Visualization

WebsiteUpdated Jun 2026
Service: Geospatial Mapping & Drone CaptureService: RTK/PPK Drone Mapping & Object DetectionIndustry: InfrastructureType: Land Surveying+39 more

Alan Plummer And Associates Inc Tx

Water-focused. People-driven.

Website21 leadersFounded 1978Updated Jun 2026
Service: Construction ManagementService: Electrical, Instrumentation and ControlsIndustry: TelecommunicationsType: Automation & Controls+19 more

Albany Hill LLC

Engineers with real world experience.

WebsiteUpdated Jun 2026
Service: Wireless Network EngineeringService: RF Design and Propagation ModelingIndustry: TelecommunicationsType: Telecom / RF Engineering+23 more

Alpha Engineering, Inc.

Indianapolis, IN

Innovative Power Solutions

WebsitePhone1 office3 leaders
Service: Power Systems EngineeringService: Substation EngineeringIndustry: CommercialType: Electrical Engineering+24 more

Anchor QEA

Seattle, WA

Transforming Our Environment and Communities, with Integrity and Vibe

WebsitePhone28 offices4 projects
Service: EngineeringService: Civil EngineeringIndustry: Power GenerationType: Civil Engineering+48 more

Anderson Bogert

Marion, IA

Professional and relationship-based civil engineering and surveying.

WebsitePhone2 offices6 leaders
Service: Transportation EngineeringService: Roadway designIndustry: GovernmentType: Civil Engineering+28 more

Antillean Engineers Inc

St. Croix, VI

Engineering Quality in Every Project

WebsitePhone1 office5 projects
Service: Civil EngineeringService: Subdivision PlanningIndustry: AirportsType: Civil Engineering+29 more

Applemon

New York, NY

Engineers and Scientists

WebsitePhone2 offices22 projects
Service: Structural EngineeringService: Structural DesignIndustry: InfrastructureType: Automation & Controls+29 more

Arc Design Resources, Inc.

Loves Park, IL

Quality and responsive civil engineering, land surveying, and landscape design

WebsitePhone1 office5 projects
Service: Civil EngineeringService: Site Planning & PermittingIndustry: GovernmentType: Civil Engineering+18 more