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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303rd Engineering Group, LLC

St. Louis, MO

Successful Partnerships, Successful Projects

WebsitePhone1 office5 projects
Service: Electrical EngineeringService: Fire Alarm SystemsIndustry: GovernmentType: MEP+20 more

3RE Engineering LLC

Shawnee, KS

Specialized Electrical Engineering for Water & Wastewater Infrastructure

WebsitePhone1 office1 leaders
Service: Electrical Design ServiceService: Power Distribution System DesignIndustry: WastewaterType: Electrical Engineering+13 more

4D Site Solutions Inc.

Fayetteville, NC

On time, every time.

WebsitePhone1 officeFounded 2002
Service: Civil EngineeringService: Erosion Control DesignIndustry: GovernmentType: Civil Engineering+14 more

4D Systems

Flint, MI

The future of manufacturing is digital. Are you ready?

WebsitePhone3 offices5 credentials
Service: Controls EngineeringService: Control System IntegrationIndustry: ManufacturingType: Automation & Controls+25 more

5 Smooth Stones Restoration

Specialists in applied fluvial geomorphology and stream restoration

Website7 projects3 leadersFounded 2015
Service: Geomorphic Assessment and Stream Restoration DesignService: Watershed Assessment and Gage AnalysisIndustry: Environmental & RemediationType: Environmental Engineering+17 more

A & S Engineers, Inc.

San Francisco, CA

Full-service Mechanical, Electrical, Plumbing Engineering and Commissioning Firm

Website1 office6 leadersUpdated Jun 2026
Service: Mechanical EngineeringService: HVAC & Hydronic SystemsIndustry: Multifamily ResidentialType: MEP+20 more

A Beazley Architecture LLC

Broussard, LA

A Kingdom-Minded Architecture, Interior & Product Design Firm

WebsitePhone1 office6 projects
Service: Architectural DesignService: Church & Worship ArchitectureIndustry: ReligiousType: Architecture & Engineering+47 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&M Consulting Engineers

Visalia, CA

Moving Our Communities Infrastructure Forward

WebsitePhone2 offices3 projects
Service: Water ResourcesService: Hydraulic AnalysisIndustry: GovernmentType: Civil Engineering+46 more

ABAM Engineers Inc.

Houston, TX

Driving Innovation and Digitization in Engineering

WebsitePhone2 officesUpdated Jun 2026
Service: Civil and Infrastructure EngineeringService: Site Analysis and DesignIndustry: CommercialType: Civil Engineering+40 more

ABQ Engineering, Inc.

Albuquerque, NM

Cost-effective, one-stop engineering, surveying, and planning services

WebsitePhone1 office5 projects
Service: Civil EngineeringService: Drainage and Hydrology AnalysisIndustry: CommercialType: Civil Engineering+40 more

ADTEK Engineers

Germantown, MD

Design Solutions That Shape Communities

Website1 office2 projects10 leaders
Service: Civil EngineeringService: Water & Sanitary Sewer InfrastructureIndustry: FederalType: Civil Engineering+18 more

ALC Engineering

Buffalo, WY

More Than Just a Project

WebsitePhone2 officesFounded 2010
Service: Land SurveyingService: GPS and Total Station SurveyingIndustry: Oil & GasType: Civil Engineering+29 more

AMG, Inc.

Dayton, OH

Industrial Facility Engineering

WebsitePhone1 office12 projects
Service: Process EngineeringService: PFD and P&ID DevelopmentIndustry: ChemicalsType: Automation & Controls+75 more

ARPE Engineering, LLC

Coral Gables, FL

Trusted Expertise in Mechanical, Electrical and Plumbing Engineering Design

WebsitePhone1 office10 projects
Service: Electrical Engineering ServicesService: Lighting DesignIndustry: ResidentialType: MEP+33 more

ARUSI, LLC

Phoenix, AZ

Powering Your Vision With 35 Years of Experience

WebsitePhone1 office2 projects
Service: Utility Engineering, Coordination & ConsultingService: System StudiesIndustry: Electric UtilitiesType: Electrical Engineering+23 more

ASD Consultants, Inc.

Austin, TX

Providing service with teamwork

WebsitePhone3 offices6 projects
Service: Architecture and Engineering DesignService: Architectural DesignIndustry: GovernmentType: Architecture & Engineering+25 more

ATLAS Design & Engineering, Inc.

Fort Myers, FL

Engineering Our Future, One Project at a Time.

WebsitePhone1 office3 leaders
Service: Civil EngineeringService: Structural EngineeringIndustry: ResidentialType: Civil Engineering+12 more

AULtec, Inc.

Gaithersburg, MD

Professional Civil Engineering and Land Surveying Services

Website1 office5 projects2 leaders
Service: Civil EngineeringService: Site & Land DevelopmentIndustry: GovernmentType: Civil Engineering+21 more

AVI, PC

Cheyenne, WY

Engineering Excellence

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

AZAD Engineering PC

San Francisco, CA

Efficient Management in Infrastructure Construction

WebsitePhone2 offices1 leaders
Service: Construction Management and InspectionService: Resident EngineeringIndustry: TransportationType: Civil Engineering+41 more

Accumark, Inc.

Accurate Subsurface Utility Provider

WebsiteUpdated Jun 2026
Service: Subsurface Utility Designation and MappingService: Utility owner identification and contactIndustry: InfrastructureType: Civil Engineering+9 more

Advanced Consulting Engineers, P.A.

Frederick, MD

Advanced Consulting Engineers, P.A. (ACE-P.A.) is a structural engineering firm established in 1994 and based in Frederick, Maryland, with professional engineering registrations in more than thirty states. ACE-P.A. provides structural analysis and design, cold-formed steel engineering and detailing, engineer-of-record services, delegated design, peer review, and property condition assessments for commercial, residential, educational, healthcare, and institutional projects.

Website1 office2 projects2 leaders
Service: Structural Analysis & DesignService: Engineer of Record (EOR)Industry: CommercialType: Structural Engineering+17 more

Aeris Engineering

Denver, CO

Landing reliable solutions, together

Website3 offices4 projects3 leaders
Service: Airfield Civil Design and EngineeringService: Runway, Taxiway, and Apron DesignIndustry: AirportsType: Aviation Engineering+6 more