Public engineering firm directory

Find engineering consulting firms by capability and location.

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Ammonite Resources

Houston, TX

Ammonite Resources provides geotechnical and economic advisory services for the petroleum and mineral industries worldwide. Established in 1982, it assists clients with investment due diligence, strategic planning, international contract negotiations, corporate finance, and acquisitions and divestitures. It is headquartered in Connecticut with a network of associate offices across the United States, Canada, and the United Kingdom.

Website9 offices25 leadersFounded 1982Updated Jun 2026

Service detail: Investment Due Diligence

Service: Investment Due DiligenceService: First-Pass Opportunity ReviewsService: Joint Venture Evaluation and RepresentationIndustry: Oil & GasIndustry: MiningType: Geotechnical Engineering+19 more

Baker Marine Solutions

Covington, LA

Your trusted partner in marine assurance and consulting services.

WebsitePhone4 offices4 projects8 leaders4 credentialsFounded 2008

Project: Shell Appomattox Marine Assurance

Service: Marine Engineering SolutionsService: Vessel DesignService: Vessel Upgrades and ModificationsIndustry: Oil & GasIndustry: Renewable EnergyType: Marine Engineering+34 more

Brown & Root Industrial Services, LLC

Baton Rouge, LA

Comprehensive engineering, construction, maintenance, turnarounds, and specialty services for industrial facilities.

Website4 offices1 credentialsUpdated Jun 2026

Service detail: Plan & Design

Service: Plan & DesignService: EngineeringService: EstimatingIndustry: IndustrialIndustry: Oil & GasType: Industrial Engineering+27 more

C. H. Fenstermaker & Associates, L.L.C.

Lafayette, LA

Surveying. Engineering. Environmental Consulting.

WebsitePhone9 offices10 projectsFounded 1950Updated Jun 2026

Project: Louisiana Watershed Initiative - Topographic and Bathymetric Data Collection

Service: Surveying & MappingService: Topographic & Boundary SurveysService: Construction Surveys & StakeoutIndustry: Oil & GasIndustry: PetrochemicalType: Land Surveying+30 more

Campos EPC, LLC

Denver, CO

The Leader In Energy Infrastructure

WebsitePhone20 offices1 projects11 leaders3 publicationsFounded 2005

Project: 350MW Data Center Power Generation & Substation Facility

Service: EngineeringService: Pipeline EngineeringService: Transmission And Midstream Pipeline DesignIndustry: Oil & GasIndustry: UtilitiesType: EPC+51 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

Keystone Engineering Inc.

Mandeville, LA

Engineering Excellence & Innovation in Every Design

WebsitePhone9 offices5 projects8 leaders3 credentialsFounded 1988

Project: Geothermal Water System

Service: Multi-Discipline EngineeringService: Process EngineeringService: Mechanical EngineeringIndustry: Oil & GasIndustry: PetrochemicalType: EPC+26 more

Lanier & Associates Consulting Engineers, Inc.

New Orleans, LA

Excellence by Design

WebsitePhone5 officesFounded 1974Updated Jun 2026

Service detail: Civil and Structural Engineering

Service: Civil and Structural EngineeringService: Heavy Haul DesignService: Rail TerminalsIndustry: MarineIndustry: Oil & GasType: Automation & Controls+34 more

Orion Engineers & Constructors

Mobile, AL

Enabling success and building relationships.

Website4 officesFounded 2001Updated Jun 2026

Service detail: Project Management

Service: Project ManagementService: Feasibility StudiesService: Front End Loading PackagesIndustry: Biomass & BioenergyIndustry: ChemicalsType: Architecture & Engineering+73 more

TAI Engineers LLC

New Orleans, LA

Solutions Built for Tomorrow's Challenges

WebsitePhone2 offices6 projects5 leaders1 credentialsFounded 1993

Project: USCG Sentinel Class Heavy Polar Icebreaker

Service: Engineering and DesignService: Concept and Preliminary DesignService: Contract and Functional DesignIndustry: FederalIndustry: DefenseType: Marine Engineering+20 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

TRICORD Consulting

Frisco, TX

We've Got Air Quality Covered

WebsitePhone7 offices6 leadersSize Estimate: 50-99 employeesUpdated Jun 2026

Service detail: Air Quality Permitting

Service: Air Quality PermittingService: Air Quality Regulatory Compliance AnalysisService: Control Technology AnalysisIndustry: Oil & GasIndustry: PetrochemicalType: Environmental Engineering+25 more

Waldemar S. Nelson & Co., Inc.

New Orleans, LA

Engineering is the Foundation of Civilization

WebsitePhone2 offices2 projects2 credentials2 publicationsFounded 1945

Project: Artemis II Space Mission Engineering

Service: Civil, Structural and Architectural EngineeringService: Civil Site and Infrastructure DesignService: Structural Engineering for Complex FacilitiesIndustry: Oil & GasIndustry: PetrochemicalType: Architecture & Engineering+34 more