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.

Filters3

Akana

Portland, OR

Engineering, Design & Construction Services, Plus Advisory and Grant Support

WebsitePhone5 offices5 projects1 leadersUpdated Jun 2026

Project: New Taholah K-12 School

Service: Engineering ServicesService: Civil EngineeringService: Structural EngineeringIndustry: FederalIndustry: GovernmentType: Civil Engineering+34 more

Bell Design Company

Bingen, WA

Your Trusted Engineering Partner in the Pacific Northwest

WebsitePhone1 office5 leaders2 credentialsFounded 1994Updated Jun 2026

Service detail: Water Systems Engineering

Service: Water Systems EngineeringService: Water System, Pump Station & PRV Vault DesignService: Water Treatment DesignIndustry: ResidentialIndustry: CommercialType: Civil Engineering+88 more

DOWL

Portland, OR

Small-Town Service, Big-Time Experts

Website5 offices8 projects12 leadersUpdated Jun 2026

Project: Choteau Wastewater Collection and Treatment Plant

Service: Environmental ServicesService: Environmental StudiesService: Environmental Planning and PermittingIndustry: AviationIndustry: AirportsType: Civil Engineering+35 more

HukariAscendent Inc

Wheat Ridge, CO

Experts in Nuclear Professional & Technical Services

WebsitePhone7 offices1 leadersFounded 1999Updated Jun 2026

Service detail: Engineering

Service: EngineeringService: Mechanical EngineeringService: Electrical and Instrumentation and Controls EngineeringIndustry: NuclearIndustry: DefenseType: Process Safety Engineering+38 more

Innovative Engineering Inc. (IEI)

Woodstock, GA

Delivering Innovative Solutions For Complex Facilities Nationwide

WebsitePhone3 offices7 projects1 leaders19 credentials3 publications

Project: 50 Hurt Plaza - Historic Landmark Shoring

Service: Structural EngineeringService: New Buildings, Hangars, and Marine StructuresService: Additions, Renovations, and RestorationIndustry: IndustrialIndustry: ManufacturingType: Structural Engineering+60 more

TD&H Engineering

Great Falls, MT

A Full-Service Consulting Engineering Firm

Website9 offices8 projects5 leaders5 credentialsFounded 1965Size Estimate: 50-150 employees

Project: Great Falls Water Treatment Plant

Service: Civil EngineeringService: Site Civil Grading & Utility InfrastructureService: Stormwater Analysis & Drainage DesignIndustry: GovernmentIndustry: WastewaterType: Aviation Engineering+56 more

Tridentis, LLC

Alexandria, VA

The Next Generation Ship Design and Engineering Firm

WebsitePhone4 offices3 projects1 leaders1 credentialsSize Estimate: 10-50 employees

Project: Georgetown Heritage Canal Boat

Service: Ship Design and EngineeringService: Concept Design and Trade StudiesService: Preliminary Vessel DesignIndustry: DefenseIndustry: FederalType: Electrical Engineering+48 more