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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AE2S

Bismarck, ND

Empowering People. Enhancing Lives.

Website22 offices6 leadersFounded 1991Updated Jun 2026

Service detail: Water and Wastewater Engineering

Service: Water and Wastewater EngineeringService: WaterService: WastewaterIndustry: Automation & ControlsIndustry: Environmental & RemediationType: Civil Engineering+29 more

Allied Engineering Services Inc

Bozeman, MT

Diverse Projects. Solutions That Last.

WebsitePhone1 office14 projects1 credentialsFounded 1996Updated Jun 2026

Project: Bozeman Public Safety Center

Service: Civil EngineeringService: SubdivisionsService: Water and Wastewater Systems DesignIndustry: CommercialIndustry: ResidentialType: Civil Engineering+59 more

Alpine Surveying & Engineering, Inc.

Bozeman, MT

Delivering Personalized Surveying & Engineering Solutions

WebsitePhone1 office6 leaders4 credentialsFounded 2002Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Commercial and light industrial site design and permittingService: Road and utility planning, design, and permittingIndustry: ResidentialIndustry: CommercialType: Civil Engineering+36 more

Coffman Engineers

Anchorage, AK

The Right Team Matters

WebsitePhone23 offices8 projectsFounded 1982Updated Jun 2026

Project: 100 MW Hydrogen Production Plant

Service: Civil EngineeringService: Bridge EngineeringService: Land SurveyingIndustry: CommercialIndustry: RetailType: Civil Engineering+59 more

Cushing Terrell

Billings, MT

Imagine. Create. Improve.

WebsitePhone17 offices7 projects2 leaders4 credentialsFounded 1938

Project: Google Henderson Hub

Service: ArchitectureService: Historic PreservationService: Adaptive ReuseIndustry: CommercialIndustry: EducationType: Architecture & Engineering+38 more

DCI Engineers

Seattle, WA

Service. Innovation. Value.

WebsitePhone22 offices1 projects4 leadersFounded 1988Size Estimate: 350+ employees

Project: The Artise

Service: Structural EngineeringService: High-rise and performance-based designService: Seismic and adaptive renovationIndustry: CommercialIndustry: Multifamily ResidentialType: Structural Engineering+36 more

Devco Engineering, Inc.

Corvallis, OR

Your Partner for Exceptional Engineering

WebsitePhone3 offices6 projects8 leadersFounded 1969Updated Jun 2026

Project: Renaissance Multi-family Housing

Service: Civil EngineeringService: Structural EngineeringService: Cold-Formed SteelIndustry: Multifamily ResidentialIndustry: CommercialType: Civil Engineering+10 more

Engineering Inc Mt

Concord, CA

Intelligent Infrastructure. Enduring Communities.

Website14 offices2 leadersFounded 2023Updated Jun 2026

Service detail: Transportation Engineering

Service: Civil EngineeringService: Transportation EngineeringService: Traffic EngineeringIndustry: MiningType: Civil Engineering+12 more

Gaston Engineering & Surveying, P.C.

Bozeman, MT

Civil engineering, land surveying, and geotechnical testing services serving Montana for over 30 years

WebsitePhone1 office11 projectsUpdated Jun 2026

Project: Costco Bozeman

Service: Civil EngineeringService: Land Planning & SubdivisionsService: Municipal EngineeringIndustry: CommercialIndustry: RetailType: Civil Engineering+28 more

Hyalite Engineers, PLLC

Bozeman, MT

Hyalite Engineers, PLLC is a full-service engineering firm serving clients throughout Montana, the Dakotas, Idaho, and surrounding states. The team brings decades of combined experience in civil, structural, and environmental engineering, as well as land surveying, delivering projects across municipal, land development, structural, and surveying disciplines.

Website1 officeUpdated Jun 2026

Service detail: Municipal Engineering

Service: Municipal EngineeringService: Land DevelopmentService: Structural EngineeringIndustry: GovernmentIndustry: Land DevelopmentType: Civil Engineering+13 more

Robert Peccia & Associates

Helena, MT

Engineering Excellence

WebsitePhone5 officesFounded 1978Updated Jun 2026

Service detail: Airports

Service: AirportsService: Site CivilService: StructuresIndustry: AirportsIndustry: Highways & RoadsType: Aviation Engineering+14 more

Sanbell

Billings, MT

Intelligent Infrastructure. Enduring Communities.

WebsitePhone14 offices2 leaders2 credentialsFounded 1969Size Estimate: 201-500 employees

Service detail: Civil Engineering

Service: Civil EngineeringService: Site DevelopmentService: Grading and DrainageIndustry: Land DevelopmentIndustry: InfrastructureType: Civil Engineering+57 more

Stahly Engineering & Associates

Bozeman, MT

55 Years of Engineering Excellence

WebsitePhone6 offices3 projects25 leadersUpdated Jun 2026

Project: East Helena ALTA Survey

Service: Site Development & SubdivisionsService: Subdivisions Layout & DesignService: Municipal EngineeringIndustry: CommercialIndustry: GovernmentType: Civil Engineering+24 more

Stensrud & Associates

Bozeman, MT

Professional Service You Expect, Personal Service You Deserve

WebsitePhone1 office1 leadersFounded 1998Updated Jun 2026

Service detail: Development Design and Planning

Service: Development Design and PlanningService: Site Investigations and EvaluationsService: Water and Wastewater SystemsIndustry: Land DevelopmentIndustry: Water SupplyType: Civil Engineering+23 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

WGM Group, Inc.

Missoula, MT

Community Values. Inspired Futures.

WebsitePhone5 offices9 projects7 leaders3 credentialsFounded 1965

Project: Community Medical Development

Service: Civil EngineeringService: Water Main RehabilitationService: Site Utilities DesignIndustry: GovernmentIndustry: TransportationType: Civil Engineering+54 more

Water & Environmental Technologies, Inc.

Butte, MT

Founded on Practical Solutions.

WebsitePhone9 offices2 projects1 credentialsFounded 2000Size Estimate: 25-100 employees

Project: Parrot Site Superfund Cleanup, Butte

Service: Geoscience & Contaminant HydrogeologyService: Contaminant hydrogeologyService: Groundwater monitoringIndustry: Power GenerationIndustry: Oil & GasType: Civil Engineering+64 more