Public engineering firm directory

Find engineering consulting firms by capability and location.

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406 Engineering Inc

Kalispell, MT

Work Hard | Work Smart | Enjoy Life

WebsitePhone2 offices18 leadersFounded 2018Size Estimate: 10-49 employeesUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Provides Comprehensive Civil Engineering DesignService: Focusing On Individual Rural SystemsIndustry: Land DevelopmentType: Civil Engineering+11 more

A2Z Engineering, PLLC

Kalispell, MT

Civil and Structural Engineers Montana

WebsitePhone1 office2 projects1 leadersFounded 1986Updated Jun 2026

Project: Flathead Lake Engineered Septic System

Service: PowerService: Substation DesignService: Transmission Line DesignIndustry: Electric UtilitiesIndustry: Land DevelopmentType: Civil Engineering+19 more

APEC Engineering, Inc.

Somers, MT

APEC Engineering, Inc. is an innovative, locally owned and operated civil engineering firm licensed in Montana and serving northwest Montana since 1998. Headquartered in Somers, Montana, APEC's team of highly qualified professionals provides civil engineering services including water resources, land development, environmental permitting, planning, and construction engineering to clients across Montana and North Dakota. APEC Engineering is committed to efficient design, modern capabilities, and hands-on consulting, serving communities in Kalispell, Bigfork, Whitefish, Columbia Falls, and throughout the region.

WebsitePhone1 office2 projectsFounded 1998Updated Jun 2026

Project: The Wilderness Club

Service: Water ResourcesService: Community water and sewer designService: Storm water managementIndustry: Land DevelopmentIndustry: Water SupplyType: Civil Engineering+43 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

Arrow Creek Survey Co.

Geyser, MT

Arrow Creek Survey Co. is a privately owned professional land surveying firm serving clients throughout Montana from offices in Geyser and Lewistown. Formerly operating as Lindseth Survey Co., Arrow Creek expanded by acquiring Milestone Surveying and now draws on more than forty years of historical survey records. Jeremy T. Milburn, PLS, leads the practice with over 25 years of surveying experience spanning projects in Montana, Alaska, Minnesota, and Russia. The team uses advanced Trimble GPS equipment, total stations, and CAD to deliver accurate results for residential, commercial, agricultural, and conservation clients.

WebsitePhone2 offices3 projects1 leadersUpdated Jun 2026

Project: Wind Energy Survey - Cut Bank, Montana

Service: Land SurveyingService: Boundary SurveysService: Cadastral SurveysIndustry: AgricultureIndustry: ResidentialType: Land Surveying+13 more

Big Sky Civil & Environmental, Inc.

Great Falls, MT

Engineering Solutions for Complex Projects

WebsitePhone1 office3 projects3 leaders1 credentialsFounded 2008

Project: Great Falls Town Pump

Service: Water SystemsService: Water TreatmentService: StorageIndustry: Water SupplyIndustry: WastewaterType: Civil Engineering+31 more

Bridger Engineers

Bozeman, MT

Bridger Engineers is a diversified civil and structural engineering firm based in Bozeman, Montana, founded in 1995 by Ed Matos and Brad Ebel. It serves clients throughout the Rocky Mountain region and beyond, with more than 60% of workload coming from repeat clients. Bridger provides structural engineering including historic restoration, rehabilitation, seismic mitigation, and forensic services, alongside civil engineering for land development projects including commercial sites, residential subdivisions, and ranch compounds in southwestern Montana.

WebsitePhone1 office2 leadersFounded 1995Updated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Historic Restoration and RehabilitationService: Preliminary Inspections and EvaluationsIndustry: CommercialIndustry: ResidentialType: Civil Engineering+15 more

Brosz Engineering, Inc.

Bismarck, ND

Civil Engineering and Surveying across the Dakotas and Montana

Website9 offices1 projectsFounded 1982Size Estimate: 100-199 employeesUpdated Jun 2026

Project: Copper Creek Mixed-Use Development

Service: Civil EngineeringService: Municipal ProjectsService: Transportation ProjectsIndustry: TransportationIndustry: GovernmentType: Civil Engineering+26 more

Carver Engineering

Kalispell, MT

Consulting civil engineering services with a meticulous commitment to detail

WebsitePhone1 office7 projects5 leadersSize Estimate: 1-10 employeesUpdated Jun 2026

Project: Whitefish Mountain Resort

Service: Water Resources EngineeringService: Water Treatment and SupplyService: Wastewater Collection and TreatmentIndustry: GovernmentIndustry: InfrastructureType: Civil Engineering+13 more

DJ&A, P.C.

Missoula, MT

Engineering, Surveying, Environmental & Planning Services

WebsitePhone3 officesFounded 1973Size Estimate: 150+ employeesUpdated Jun 2026

Service detail: Transportation Engineering

Service: Transportation EngineeringService: Roadway and Highway DesignService: Logging Road EngineeringIndustry: FederalIndustry: GovernmentType: Civil Engineering+43 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

Eli & Associates, Inc.

Missoula, MT

Land Surveying, Planning, and Engineering

WebsitePhone1 office2 leadersFounded 1972Updated Jun 2026

Service detail: Land Surveying

Service: Land SurveyingService: Boundary surveysService: Lot surveysIndustry: Land DevelopmentIndustry: ResidentialType: Civil Engineering+36 more

Engineering Associates

Cody, WY

Engineering Wyoming.

WebsitePhone10 offices4 leadersFounded 1952Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Architectural EngineeringService: Environmental ReviewsIndustry: GovernmentIndustry: InfrastructureType: Civil Engineering+20 more

Everly & Associates

Butte, MT

Diversified engineering and land surveying serving the Western States since 1946.

WebsitePhone1 office1 leaders3 credentialsFounded 1946Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Land SurveyingIndustry: Land DevelopmentIndustry: Stormwater & Flood ControlType: Civil Engineering+3 more

Foley Engineering Inc.

Kalispell, MT

Exceptional Service Exceeding Expectations

WebsitePhone1 office5 leadersFounded 2017Size Estimate: 1-9 employeesUpdated Jun 2026

Service detail: Water and Wastewater Engineering

Service: Water and Wastewater EngineeringService: Water System DesignService: Wastewater Treatment DesignIndustry: GovernmentIndustry: Land DevelopmentType: Civil Engineering+19 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

Graham Engineering LLC

Bozeman, MT

Your Partner for Success

WebsitePhone1 office1 projects6 leadersUpdated Jun 2026

Project: Les Schwab Tire Centers

Service: Civil Engineering and Site DesignService: Civil EngineeringService: EntitlementsIndustry: CommercialIndustry: RetailType: Civil Engineering+8 more

HMH Engineering

Coeur d'Alene, ID

Locally Rooted and Community Focused

WebsitePhone7 officesFounded 2011Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Land SurveyingService: Land DevelopmentIndustry: GovernmentIndustry: FederalType: Civil Engineering+17 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

Missoula Engineering, LLC

Missoula, MT

Your Trusted Partner for Land Use Planning & Civil Engineering Services

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Residential Civil Engineering

Service: Residential Civil EngineeringService: Due Diligence & Feasibility AnalysisService: Land Development PlanningIndustry: ResidentialIndustry: Land DevelopmentType: Civil Engineering+38 more

NCI Engineering Co.

Great Falls, MT

Engineers, Planners, Designers, Surveyors

Website3 offices5 projectsSize Estimate: 50 employeesUpdated Jun 2026

Project: Upper/Lower River Road Phase 4

Service: PlanningService: Master PlanningService: Preliminary Engineering ReportsIndustry: GovernmentIndustry: UtilitiesType: Civil Engineering+20 more

Performance Engineering

Billings, MT

Breaking New Ground in Engineering Excellence

WebsitePhone1 office6 projects5 leaders3 credentialsUpdated Jun 2026

Project: Intermountain Health - West End Campus

Service: Civil EngineeringService: Site Development DesignService: Infrastructure DesignIndustry: GovernmentIndustry: Water ResourcesType: Civil Engineering+20 more

Professional Consultants Inc.

Missoula, MT

Unmatched Experience, Uncompromising Standards

WebsitePhone2 offices4 projects3 leaders1 credentialsFounded 1975

Project: Armed Forces Reserve Center

Service: Municipal and Utility EngineeringService: Street and Road ImprovementsService: Pedestrian and Trail FacilitiesIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+40 more