Public engineering firm directory

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Allen Engineering and Science

Jackson, MS

Allen Engineering and Science is an environmental, civil, and structural engineering practice serving private and public clients across the southeastern United States. Founded in 1993 as Eco-Systems and renamed in 2013, the company combines engineering, environmental science, planning, and construction management for oil and gas, manufacturing, energy, chemical, solid waste, real estate, and public-sector programs.

WebsitePhone6 offices5 leadersFounded 1993Updated Jun 2026

Service detail: Engineering

Service: EngineeringService: Civil EngineeringService: Environmental EngineeringIndustry: Oil & GasIndustry: ManufacturingType: Civil Engineering+26 more

Coffman Engineers

Anchorage, AK

The Right Team Matters

WebsitePhone23 offices8 projectsFounded 1982Updated Jun 2026

Project: 100 MW Hydrogen Production Plant

Service: Civil EngineeringService: Bridge EngineeringService: Land SurveyingIndustry: CommercialIndustry: RetailType: Civil Engineering+59 more

Collier Consulting, Inc.

Stephenville, TX

We Bring a World of Solutions

WebsitePhone11 offices18 leadersFounded 1998Size Estimate: 25-50 employeesUpdated Jun 2026

Service detail: Geoscience

Service: GeoscienceService: GroundwaterService: EnvironmentalIndustry: Water ResourcesIndustry: Water SupplyType: Environmental Engineering+30 more

DECON

Houston, TX

Delivering practical solutions to complex technical challenges.

WebsitePhone3 offices10 leaders17 credentialsFounded 2010Updated Jun 2026

Service detail: Transportation and Roadway Engineering

Service: Transportation and Roadway EngineeringService: Roadway designService: Traffic engineeringIndustry: InfrastructureIndustry: TransportationType: Civil Engineering+25 more

EnSafe Inc.

Memphis, TN

Creative Thinking. Custom Solutions.

WebsitePhone20 offices4 projects15 leaders4 credentialsFounded 1980

Project: Remediation of Perchlorate Contamination at NWIRP McGregor

Service: Environmental Site Assessment & InvestigationService: Phase I/II Environmental Site AssessmentsService: Soil and Groundwater InvestigationsIndustry: Environmental & RemediationIndustry: FederalType: Environmental Engineering+47 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

Hargrove Engineers & Constructors

Mobile, AL

The right people. The right place. The right time.

WebsitePhone18 offices1 credentialsSize Estimate: 2,700 employeesUpdated Jun 2026

Service detail: Engineering Design

Service: Engineering DesignService: Conceptual and Front End StudiesService: Capital Projects EngineeringIndustry: AgricultureIndustry: ChemicalsType: EPC+27 more

Infrastructure Consulting & Engineering, LLC

West Columbia, SC

A Full Service Transportation Consulting and Design Firm

WebsitePhone15 offices6 projects5 credentialsFounded 2005Size Estimate: 500-1,000 employees

Project: NC-540 (Triangle Expressway SE Extension)

Service: Roadway and Highway DesignService: Roadway widening and extensionService: Major interchange and intersection designIndustry: TransportationIndustry: GovernmentType: Civil Engineering+85 more

Infrastructure Engineering, Inc.

Chicago, IL

Civil engineering driven by a passion for solving infrastructure challenges through ingenuity.

Website10 offices3 projectsUpdated Jun 2026

Project: George Washington Bridge Priority Repairs

Service: Design EngineeringService: Transportation DesignService: Bridge and Structural DesignIndustry: InfrastructureIndustry: TransportationType: Civil Engineering+29 more

Mark G Anderson Consultants Inc

Washington, DC

Personal relationships. Global reach.

Website20 offices76 leaders1 credentialsFounded 1996Updated Jun 2026

Service detail: Management Consulting

Service: Management ConsultingService: Project ManagementService: Cost ManagementIndustry: Arts & CultureIndustry: CommercialType: Owner's Engineer+21 more

RSP Engineers

Miami, FL

Your Trusted Civil Engineering Firm for Innovative Solutions

Website8 offices6 projectsUpdated Jun 2026

Project: Stormwater Site Improvements, Frisco

Service: Planning ServicesService: Site assessmentsService: Feasibility studiesIndustry: ResidentialIndustry: CommercialType: Civil Engineering+44 more

SEA, Ltd.

Columbus, OH

Revealing the Cause. Mitigating the Risk.

WebsitePhone13 offices1 leadersFounded 1970Size Estimate: 350+ employeesUpdated Jun 2026

Service detail: Forensic Engineering & Investigation

Service: Forensic Engineering & InvestigationService: Accident ReconstructionService: Fire and Explosion InvestigationIndustry: Consumer ProductsIndustry: Power GenerationType: Civil Engineering+38 more

Smith Engineering and Associates, LLC

Cleveland, TN

Innovative & Efficient Engineering Solutions

WebsitePhone3 offices6 projects1 leaders10 credentialsSize Estimate: 1-25 employees

Project: Jackson International Airport Aviation Project Management

Service: Traffic EngineeringService: Traffic CountsService: Traffic Analysis and ModelingIndustry: TransportationIndustry: AviationType: Civil Engineering+71 more

TLC Engineering, Inc.

Houston, TX

TLC Engineering, Inc. is a Houston-based practice providing multi-disciplinary engineering, environmental planning, construction management, and disaster recovery services. Established in 1994, it serves public, private, and municipal clients across Texas, the Gulf Coast, and national markets. It delivers turnkey services from conceptual design through facilities commissioning, with deep experience in infrastructure projects, pipeline design, and FEMA disaster recovery assistance.

WebsitePhone6 offices10 projects9 leadersFounded 1994Size Estimate: 1-50 employees

Project: Hurricane Harvey - City of La Marque Recovery

Service: EngineeringService: Structural Seismic Analysis and DesignService: Architectural Engineering and PlanningIndustry: GovernmentIndustry: Oil & GasType: Architecture & Engineering+41 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

Walker Consultants

Chicago, IL

Bringing Life to the Built Environment

Website26 offices4 publicationsFounded 1965Size Estimate: 500+ employeesUpdated Jun 2026

Service detail: Parking Design

Service: Parking DesignService: Functional DesignService: Architecture DesignIndustry: AviationIndustry: ResidentialType: Forensic Engineering+44 more

Wiss, Janney, Elstner Associates, Inc.

Northbrook, IL

Solutions for the Built World

WebsitePhone30 offices5 projects5 credentials5 publicationsFounded 1956

Project: Washington Monument

Service: Structural EngineeringService: Bridge EngineeringService: Heavy Movable StructuresIndustry: GovernmentIndustry: TransportationType: Architecture & Engineering+54 more

Woolpert

Beavercreek, OH

Global resources. End-to-end solutions. Innovative results.

WebsitePhone8 offices3 projects8 leaders9 credentialsFounded 1911

Project: USACE I-ATLAS Coastal Mapping and Nautical Charting

Service: ArchitectureService: Mission-Critical ArchitectureService: Education Facility ArchitectureIndustry: AviationIndustry: AirportsType: Architecture & Engineering+48 more