Public engineering firm directory

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Aucoin & Associates, Inc.

Eunice, LA

Aucoin & Associates, Inc. (A&A) is a civil, environmental, and transportation engineering and land surveying firm founded in Eunice, Louisiana in March 1951 by Lindsey J. Aucoin. Serving the Central Gulf Coast from offices in Eunice and Lake Charles, A&A provides professional engineering, planning, and surveying services across Louisiana, Texas, and Mississippi. Licensed engineers and surveyors hold credentials in Louisiana, Texas, Mississippi, and Arkansas. The practice serves municipal, state, and federal agencies, parish governments, and private clients including major oil and gas pipeline operators, with project work spanning coastal restoration, transportation infrastructure, municipal utilities, land development, and solid waste engineering.

WebsitePhone2 offices5 leaders2 credentialsFounded 1951Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Environmental EngineeringService: Transportation EngineeringIndustry: Oil & GasIndustry: Highways & RoadsType: Civil Engineering+51 more

Bonton Associates

Baton Rouge, LA

Data-driven civil engineering for water and transportation infrastructure.

WebsitePhone2 offices1 projects13 leadersFounded 2012Updated Jun 2026

Project: Fuqua St./Gracie St. Area ADA Transition

Service: Water EngineeringService: Collection and ConveyanceService: Treatment and DistributionIndustry: Water SupplyIndustry: WastewaterType: Civil Engineering+19 more

Buchart Horn, Inc.

York, PA

Shaping the built environment with precision, creativity, and purpose since 1945

WebsitePhone9 offices6 projects4 leadersFounded 1945Size Estimate: 100-500 employees

Project: I-40/I-240 Interchange Improvements, Memphis, TN

Service: Water Resources EngineeringService: Wastewater treatment plant engineeringService: Water distribution and collection systemsIndustry: Water ResourcesIndustry: WastewaterType: Architecture & Engineering+41 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

Digital Engineering & Imaging Inc.

Kenner, LA

Bettering Communities. Elevating Leaders.

Website4 offices7 projects9 leaders6 credentialsFounded 1990Size Estimate: 50-249 employees

Project: Bogue Falaya Park Shoreline Protection

Service: Transportation EngineeringService: Roads and BridgesService: Transportation PlanningIndustry: TransportationIndustry: Water ResourcesType: Civil Engineering+19 more

Duplantis Design Group, PC

Thibodaux, LA

Broad Vision. Expert Focus.

Website9 offices4 projects10 leadersFounded 1997Updated Jun 2026

Project: Louisiana Clean Energy Complex

Service: Civil EngineeringService: PlanningService: Civil Site DesignIndustry: GovernmentIndustry: InfrastructureType: Civil Engineering+50 more

EJES Inc

Dallas, TX

Providing Service with Excellence

WebsitePhone5 offices9 projects1 credentialsUpdated Jun 2026

Project: Marine Corps Air Station Iwakuni (MCASI)

Service: Civil EngineeringService: Roadway DesignService: Bridge DesignIndustry: GovernmentIndustry: FederalType: Architecture & Engineering+45 more

Evans-Graves Engineers, Inc.

New Orleans, LA

Helping the Gulf Coast work & move.

WebsitePhone2 offices5 projectsFounded 1954Size Estimate: 15-49 employeesUpdated Jun 2026

Project: Cabela's Outdoor Retail

Service: Civil & Site EngineeringService: Commercial DevelopmentService: Community DevelopmentIndustry: CommercialIndustry: TransportationType: Civil Engineering+27 more

Grey Engineering, LLC

Greenwell Springs, LA

Adapting Streets for People & Our Evolving Environment

WebsitePhone1 office7 projects1 leadersUpdated Jun 2026

Project: BREC's Health Loop Segment 12

Service: Transportation EngineeringService: Concept DevelopmentService: Feasibility StudiesIndustry: TransportationIndustry: Highways & RoadsType: Transportation Engineering+9 more

Johnson & Pace Incorporated

Longview, TX

Engineering. Architecture. Surveying.

WebsitePhone2 offices10 projects10 leaders7 credentialsFounded 1995

Project: RoyOMartin Corrigan OSB Plant

Service: Civil EngineeringService: Land Planning & Site DevelopmentService: Design & Plan ProductionIndustry: ManufacturingIndustry: EducationType: Civil Engineering+38 more

KSA Engineers Inc

Longview, TX

Dedicated to making life better in communities

WebsitePhone17 offices7 projects3 leaders5 credentialsFounded 1978

Project: Sabine River Water Treatment Facility

Service: Water and Wastewater EngineeringService: Water Treatment Plant DesignService: Wastewater Treatment Plant DesignIndustry: AviationIndustry: AirportsType: Architecture & Engineering+43 more

Lazenby & Associates, Inc.

West Monroe, LA

Totally committed to our clients for over 30 years

WebsitePhone1 officeFounded 1969Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Site developmentService: Stormwater engineeringIndustry: TransportationIndustry: Water SupplyType: Civil Engineering+19 more

Mader Engineering Inc

Lafayette, LA

Versatile Civil Engineering and Surveying Services

WebsitePhone1 office5 projects4 leaders1 credentialsFounded 1988

Project: Crowley Wastewater Facility

Service: Environmental and Water Resources EngineeringService: Potable Water Treatment and DistributionService: Wastewater Collection and TreatmentIndustry: GovernmentIndustry: Highways & RoadsType: Civil Engineering+36 more

N-Y Associates, Inc.

Metairie, LA

Excellence in Design Since 1969

WebsitePhone4 offices1 projects7 leadersFounded 1969Updated Jun 2026

Project: Western Tie-In Closure Structure at Bayou Verret (Sellers Canal)

Service: EngineeringService: Transportation EngineeringService: Water and Wastewater EngineeringIndustry: GovernmentIndustry: FederalType: Civil Engineering+26 more

Vectura Consulting Services, LLC

Baton Rouge, LA

Vectura Consulting Services, LLC is a Louisiana civil engineering firm specializing in comprehensive transportation engineering services from planning through implementation. Co-founded by transportation engineers Brin Ferlito and Laurence Lambert, it operates offices in Baton Rouge and New Orleans, serving clients across southeast Louisiana with transportation planning, signal design, data collection, and construction engineering and inspection.

WebsitePhone2 offices2 leadersUpdated Jun 2026

Service detail: Transportation Engineering

Service: Transportation EngineeringService: Transportation analysisService: Signal designIndustry: TransportationIndustry: GovernmentType: Civil Engineering+12 more