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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Strata Inc

Boise, ID

Big Firm Capabilities. Small Firm Approachability.

Website6 offices9 leaders1 credentialsFounded 1974Updated Jun 2026

Service detail: Construction Services

Service: Geotechnical EngineeringService: Construction ServicesService: Construction Inspection and TestingIndustry: CommercialIndustry: EducationType: Geotechnical Engineering+9 more

Summit Testing & Inspection Company

Akron, OH

Summit Testing & Inspection Company (ST&I) is an Akron, Ohio geotechnical engineering and construction materials testing firm founded in 1984 by John Malivuk. ST&I provides geotechnical engineering, construction materials testing, observation, and consulting services to governmental, private, and public-sector construction clients throughout Northeast Ohio.

WebsitePhone1 officeFounded 1984Updated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Construction Materials TestingService: Inspection & ObservationIndustry: CommercialIndustry: GovernmentType: Geotechnical Engineering+3 more

TEAM Services, Inc.

Foreseeing critical project phases and providing practical engineering solutions

Website3 credentialsUpdated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Subsurface Exploration and DrillingService: Foundation and Earth Retention DesignIndustry: InfrastructureIndustry: TransportationType: Geotechnical Engineering+22 more

TSIT Engineering & Consulting, LLC

Euless, TX

TSIT Engineering & Consulting, LLC is a geotechnical engineering and construction materials testing firm based in Euless, Texas, serving North and Central Texas since 1993. Project Managers average 25 years of experience and the team averages 10 years of field experience. Clients include TxDOT, NTTA, and municipal agencies across a portfolio spanning highways, tollways, airports, stadiums, commercial buildings, water infrastructure, universities, and public safety facilities.

WebsitePhone2 offices8 projects6 credentialsFounded 1993Updated Jun 2026

Project: Cowboys Stadium

Service: Geotechnical EngineeringService: Subsurface ExplorationService: Foundation DesignIndustry: Highways & RoadsIndustry: AirportsType: Geotechnical Engineering+40 more

Terracon

Olathe, KS

Explorers of the natural and built environment

WebsitePhone1 office3 projects1 leadersSize Estimate: 8,000+ employeesUpdated Jun 2026

Project: Hyundai Metaplant

Service: Environmental ServicesService: Environmental Site AssessmentService: Sustainability and Resiliency ServicesIndustry: CommercialIndustry: Data CentersType: Environmental Engineering+20 more

Terradyne Engineering Inc.

Euless, TX

Geotechnical & Environmental Engineering Experts Since 1995

WebsitePhone6 offices2 credentialsFounded 1995Updated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Drilling & SamplingService: Soil Testing & Laboratory AnalysisIndustry: CommercialIndustry: ResidentialType: Geotechnical Engineering+21 more

Texas Geotechnical Consultants, LLC

Houston, TX

Texas Geotechnical Consultants, LLC (TGC) is a geotechnical engineering and testing, environmental engineering consulting, and construction materials engineering and testing firm based in the greater Houston, Texas area, providing foundation design, environmental, and materials testing services for a wide range of project types across Texas.

WebsitePhone1 office1 leaders5 credentialsUpdated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Subsurface Exploration and Soil BoringsService: In Situ TestingIndustry: ResidentialIndustry: Multifamily ResidentialType: Geotechnical Engineering+33 more

The Beta Group

Gretna, LA

Exceeding our clients expectations is our guarantee.

WebsitePhone1 office3 projects10 leaders10 credentialsFounded 1997

Project: Ernest N. Morial Convention Center

Service: Geotechnical EngineeringService: Pile Logging, Load Testing & Vibration MonitoringService: Construction Materials TestingIndustry: GovernmentIndustry: FederalType: Geotechnical Engineering+17 more

The Quality Firm

Signal Hill, CA

Redefine your expectations

WebsitePhone3 offices2 projects1 leadersFounded 2018Size Estimate: 100-499 employees

Project: LAX Automatic People Mover

Service: Geotechnical EngineeringService: Geotechnical InvestigationService: AnalysisIndustry: AviationIndustry: AirportsType: Materials Testing+33 more

The Wallace Group, Inc.

Bend, OR

Northwest Geosystem Experts

WebsitePhone1 office3 projects1 leaders11 credentialsFounded 1997

Project: Bend Whitewater Park & Pedestrian Bridge

Service: Geotechnical EngineeringService: Geotechnical Engineering StudiesService: Geologic HazardsIndustry: CommercialIndustry: IndustrialType: Geotechnical Engineering+23 more

Thielsch Engineering, Inc.

Cranston, RI

Thielsch Engineering, Inc. is a professional engineering firm that provides a complete range of consulting, design, and comprehensive engineering services to customers throughout the United States and internationally. Its experienced, multi-disciplined engineering and technical staff specializes in failure analysis, engineering design, process optimization, and condition assessment with expertise to solve any type of engineering challenge. Thielsch's mission is to deliver value-added, integrated services by reducing operating costs, increasing profitability by extending the operating life of capital equipment, improving reliability and safety, and conserving energy. It is part of The RISE Group, a family of engineering and energy service companies headquartered in Rhode Island.

WebsitePhone1 office6 leadersSize Estimate: 50+ employeesUpdated Jun 2026

Service detail: Engineering Services

Service: Engineering ServicesService: Design EngineeringService: Integrated EngineeringIndustry: IndustrialIndustry: Power GenerationType: Civil Engineering+21 more

Tierra South Florida, Inc. (TSFGeo)

West Palm Beach, FL

Reliable, In-Depth Solutions

WebsitePhone4 offices9 leaders3 credentialsFounded 2000Size Estimate: 1-25 employees

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Subsurface ExplorationService: Laboratory Testing and AnalysisIndustry: AviationIndustry: TransportationType: Geotechnical Engineering+30 more

Tierra, Inc.

Tampa, FL

Full Service Geotechnical, Structural, Forensic, Environmental and Construction Materials Testing Engineering

WebsitePhone3 offices3 projects5 credentialsFounded 1992Size Estimate: 1-25 employees

Project: I-4 / Crosstown Connector Segment 3C, Hillsborough County

Service: Geotechnical EngineeringService: Geotechnical DrillingService: Subsurface InvestigationIndustry: GovernmentIndustry: TransportationType: Geotechnical Engineering+36 more

Tolunay Engineering Group Inc.

Houston, TX

Deep Industry Knowledge

WebsitePhone2 offices4 leadersFounded 2016Updated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Soil Borings and Cone Penetrometer TestsService: Laboratory TestingIndustry: CommercialIndustry: IndustrialType: Geotechnical Engineering+18 more

Tolunay-Wong Engineers, Inc.

Houston, TX

Your Trusted Partner in Geotechnical Engineering Solutions

WebsitePhone13 offices2 leadersSize Estimate: 50-150 employeesUpdated Jun 2026

Service detail: Geotechnical Investigations

Service: Geotechnical InvestigationsService: Site assessmentsService: Foundation design recommendationsIndustry: ResidentialIndustry: CommercialType: Geotechnical Engineering+23 more

UES (Universal Engineering Sciences)

Orlando, FL

Grounded In Excellence

WebsitePhone5 officesSize Estimate: 4,000+ employeesUpdated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Subsurface InvestigationService: Soil TestingIndustry: TransportationIndustry: InfrastructureType: Geotechnical Engineering+43 more

United Consulting

Norcross, GA

Engineering Excellence Since 1990.

WebsitePhone5 offices1 leadersFounded 1990Updated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Environmental ConsultingService: Construction Materials TestingIndustry: CommercialIndustry: EducationType: Geotechnical Engineering+9 more

W Geotechnical and Testing, Inc.

Wiggins, MS

Service. Expertise. Results.

WebsitePhone2 offices1 leadersFounded 2001Updated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Subsurface ExplorationsService: Soils Laboratory TestingIndustry: Water SupplyType: Civil Engineering+12 more

Westshore Consulting

Muskegon, MI

Providing Environmental, Surveying, Engineering, and Geoscience Solutions to the Great Lakes Region

WebsitePhone1 office1 credentialsFounded 1982Updated Jun 2026

Service detail: Civil & Municipal Engineering

Service: Civil & Municipal EngineeringService: Civil works feasibility studiesService: Shoreline protection designIndustry: GovernmentIndustry: InfrastructureType: Civil Engineering+76 more

Wilding Engineering

Bluffdale, UT

Engineering Inspiring Places

Website1 office3 projects3 leaders16 credentialsFounded 1992Updated Jun 2026

Project: Draper Cove Condominiums

Service: Civil EngineeringService: Land Development DesignService: Entitlement and Governmental ProcessingIndustry: CommercialIndustry: ResidentialType: Civil Engineering+53 more

Zannino Engineering, Inc.

Glen Allen, VA

Innovative & Reliable

WebsitePhone1 office4 projects16 leaders10 credentialsFounded 1991

Project: Manchester Condos

Service: Geotechnical EngineeringService: Subsurface InvestigationsService: Foundation Design RecommendationsIndustry: CommercialIndustry: ResidentialType: Geotechnical Engineering+25 more