Public engineering firm directory

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3 Rocks Engineering & Surveying

CaƱon City, CO

Colorado Civil, Structural, & Land Surveying Experts

WebsitePhone3 offices9 projects2 leadersSize Estimate: 11-50 employeesUpdated Jun 2026

Project: Love's Travel Stop & RV Park Designs

Service: Civil EngineeringService: Residential and Commercial Site DevelopmentService: Oil and Gas Civil SupportIndustry: CommercialIndustry: ResidentialType: Civil Engineering+28 more

Engineering Systems Inc.

Scottsdale, AZ

Multidisciplinary Expertise. Industry Insight.

Website22 offices4 projects4 leadersSize Estimate: 200-1,000 employeesUpdated Jun 2026

Project: Uncovering the Truth Behind a Toy Archery Injury

Service: Accident ReconstructionService: Motor Vehicle Accident ReconstructionService: Industrial and Workplace Incident AnalysisIndustry: AgricultureIndustry: MiningType: Chemical Engineering+57 more

Frontier Structural Engineering

Colorado Springs, CO

Frontier Structural Engineering is a Colorado-based structural engineering practice founded in 2020 by Jon Talley, SE, PE. It brings 20 years of structural engineering experience across California and Colorado to commercial, residential, and mixed-use projects from Colorado Springs to Denver and into the mountain communities. Frontier provides design services through construction administration, staying engaged through submittals, RFIs, and site visits through project closeout. Service offerings include commercial structural design, forensic structural engineering, expert witness, adaptive reuse, and temporary structure engineering.

WebsitePhone1 office1 leaders1 credentialsFounded 2020Updated Jun 2026

Service detail: Commercial Building Design

Service: Commercial Building DesignService: OfficeService: RetailIndustry: CommercialIndustry: ResidentialType: Structural Engineering+24 more

Knott Laboratory, LLC

Centennial, CO

Questions answered. Problems solved.

WebsitePhone9 offices2 projects3 credentials5 publicationsFounded 1982

Project: ADA Ramp Design

Service: Structural EngineeringService: Civil EngineeringService: Accident ReconstructionIndustry: LegalIndustry: InsuranceType: Forensic Engineering+25 more

Rivet Engineering Group

Parker, CO

Consulting, Design, & Forensics

WebsitePhone2 offices4 projects6 leadersFounded 2017Size Estimate: 10-20 employees

Project: Construction Defect Causing Roof Collapse

Service: Consulting EngineeringService: Construction Defect InvestigationService: Residential Fire InvestigationIndustry: ResidentialIndustry: CommercialType: Structural Engineering+15 more