Public engineering firm directory

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609 Consulting, LLC

Sheridan, WY

Engineering Excellence Delivering High-Quality Engineering, Surveying & Consulting Services to the Rocky Mountain Region

WebsitePhone4 offices8 leadersFounded 2007Size Estimate: 58 employeesUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Road Engineering DesignService: Transportation Planning of Access RoadsIndustry: Oil & GasIndustry: Water ResourcesType: Civil Engineering+25 more

ALC Engineering

Buffalo, WY

More Than Just a Project

WebsitePhone2 officesFounded 2010Updated Jun 2026

Service detail: Land Surveying

Service: Land SurveyingService: GPS and Total Station SurveyingService: UAV and Aerial Survey and MappingIndustry: Oil & GasIndustry: GovernmentType: Civil Engineering+27 more

KL&A Engineers and Builders

Golden, CO

KL&A Engineers and Builders is a Rocky Mountain-based engineering and construction practice founded in 1994. Operating across six offices in Colorado, Wyoming, and Utah, it integrates structural engineering, civil engineering, land surveying, steel construction, mass timber design, and embodied carbon life cycle assessment under one roof. With more than 7,000 projects completed and 120-plus team members, KL&A serves commercial, education, cultural, residential, industrial, and energy markets and is recognized as the premier structural designer of mass timber in the Rocky Mountain region.

WebsitePhone6 offices6 projects16 leaders5 credentials3 publications

Project: Aspen Art Museum

Service: Structural EngineeringService: Mass TimberService: New Construction in All MaterialsIndustry: CommercialIndustry: Mixed-UseType: Structural Engineering+82 more

Nelson Engineering

Jackson, WY

Quality of Life Through Excellence in Engineering

WebsitePhone3 offices6 projects6 credentialsFounded 1964Size Estimate: 40-60 employees

Project: Teton Village Wastewater Treatment Plant

Service: Civil EngineeringService: Civil engineering services for publicService: Private clients on municipalIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+68 more