Public engineering firm directory

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AG3 Group, LLC

San Antonio, TX

Civil Services with a Forward-Thinking Approach

WebsitePhone8 offices14 projects5 leaders2 credentialsUpdated Jun 2026

Project: VIA Park and Ride at Stone Oak

Service: Civil EngineeringService: Transportation DesignService: Drainage and Stormwater ManagementIndustry: GovernmentIndustry: TransportationType: Civil Engineering+25 more

Benham, a Haskell Company

Oklahoma City, OK

Tomorrow's Design Since 1909

WebsitePhone6 offices4 projectsFounded 1909Size Estimate: 200-500 employeesUpdated Jun 2026

Project: Osprey Maintenance Hangars

Service: ArchitectureService: EngineeringService: DesignBuildIndustry: InfrastructureIndustry: HealthcareType: Architecture & Engineering+35 more

ENGlobal Corporation

Houston, TX

Delivering Innovation

WebsitePhone3 officesUpdated Jun 2026

Service detail: Project Management

Service: Project ManagementService: Program ManagementService: Front-End Engineering and Design (FEED)Industry: Oil & GasIndustry: PetrochemicalType: EPC+26 more

GUY Engineering Services, Inc.

Tulsa, OK

Engineering safe and lasting infrastructure solutions for our communities

WebsitePhone3 offices12 projectsFounded 1987Updated Jun 2026

Project: Bridge 45 Wolf Creek

Service: Bridge and Roadway EngineeringService: Bridge DesignService: Roadway DesignIndustry: BridgesIndustry: Highways & RoadsType: Civil Engineering+21 more

Huitt-Zollars

Los Angeles, CA

Meet a local AE design firm with national reach.

Website5 offices7 leadersUpdated Jun 2026

Service detail: Architecture

Service: ArchitectureService: Architectural DesignService: Interior DesignIndustry: CommercialIndustry: EducationType: Architecture & Engineering+29 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

Level Engineering & Architecture

Loveland, CO

Level Engineering and Architecture is a multidisciplinary civil and structural engineering and architecture firm headquartered in Loveland, Colorado, with 12 offices across 7 states. It serves homeowners, commercial building owners, contractors, developers, and local government clients with structural engineering, civil engineering, architecture, and inspection services. With over 25,000 projects completed and 500+ five-star reviews, Level provides stamped drawings and signed plans for permitting, structural inspections, load-bearing assessments, foundation engineering, and forensic reports. Civil services include hydraulic engineering, drainage engineering, water and wastewater, and bridge engineering.

WebsitePhone13 offices1 leaders1 credentialsUpdated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Load Bearing Wall RemovalService: Foundation EngineeringIndustry: ResidentialIndustry: CommercialType: Structural Engineering+23 more

Saulsbury

Odessa, TX

Full-service EPC for energy and heavy industrial projects.

Website7 offices3 leadersFounded 1967Updated Jun 2026

Service detail: Engineering, Procurement, and Construction

Service: Engineering, Procurement, and ConstructionService: EngineeringService: Electrical and InstrumentationIndustry: Oil & GasIndustry: PetrochemicalType: EPC+18 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