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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Firm nameRecently updatedProfile depthOffice countSizeAgeLocation match
ComfortableCompact

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
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HED

Boston, MA

Because great design is more than what we do. It's who we are.

Website8 officesUpdated Jun 2026

Service detail: Architecture

Service: ArchitectureService: Electrical EngineeringService: Mechanical & Plumbing EngineeringIndustry: GovernmentIndustry: FederalType: Architecture & Engineering+18 more
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Henderson Engineers

Lenexa, KS

Henderson Engineers is a national building systems engineering design and facility consulting firm headquartered in Lenexa, Kansas, with 15 offices across the United States. Its team of more than 1,000 engineers provides mechanical, electrical, plumbing, fire and life safety, refrigeration, telecommunications, security, acoustics, and commissioning services for retail, healthcare, commercial, grocery and distribution, sports venue, and data center markets.

Website15 offices4 leaders2 credentials2 publicationsSize Estimate: 1,000 employeesUpdated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: HVAC SystemsService: Air DistributionIndustry: CommercialIndustry: RetailType: MEP+29 more
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Interface Engineering, Inc.

Portland, OR

Optimal Environments for Life

Website9 offices8 projects3 leaders3 credentialsFounded 1969Size Estimate: 220+ employees

Project: Hood River Middle School Music & Science Building

Service: Mechanical EngineeringService: Electrical EngineeringService: Plumbing DesignIndustry: EducationIndustry: HealthcareType: MEP+13 more
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Olsson

Lincoln, NE

Engineering trust.

Website10 offices5 projects10 leaders16 credentials2 publicationsFounded 1956

Project: Baylor Scott & White Medical Center and Clinic in Pflugerville

Service: Civil & Site EngineeringService: Site Design and DevelopmentService: Land SurveyingIndustry: CommercialIndustry: ResidentialType: Civil Engineering+39 more
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Shah Smith & Associates

Houston, TX

MEP Engineering Specialists

WebsitePhone4 offices10 projects9 leadersFounded 1994Size Estimate: 50-200 employees

Project: San Antonio International Airport Expansion

Service: MEP EngineeringService: Mechanical EngineeringService: Electrical EngineeringIndustry: EducationIndustry: HealthcareType: MEP+15 more
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Terrapin Construction Group

Denver, CO

National Footprint. Local Knowledge. Precision Delivery.

WebsitePhone4 offices6 projects1 leaders1 credentialsFounded 2024

Project: Cold Storage IMP Facility - Southeast

Service: MEP EngineeringService: Mechanical EngineeringService: Heating and cooling load calculationsIndustry: CommercialIndustry: HealthcareType: MEP+44 more
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