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.

Filters1

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

Sabir, Richardson & Weisberg Engineering and Architecture, PLLC

New York, NY

The Experts You Need On Every Project

WebsitePhone3 offices4 projects4 leadersUpdated Jun 2026

Project: MTA Moynihan Train Hall

Service: EngineeringService: MEPService: Fire Protection & Life SafetyIndustry: CommercialIndustry: RetailType: Architecture & Engineering+22 more

Sam O. Hirota, Inc.

Honolulu, HI

Leaders in Quality Civil Engineering, Land Surveying, and 3D Laser Scanning

WebsitePhone1 office5 projects1 credentialsFounded 1963Updated Jun 2026

Project: US Army Boundary Studies

Service: Civil EngineeringService: Site master planning and analysisService: Flood and drainage studiesIndustry: GovernmentIndustry: FederalType: Civil Engineering+33 more

Seamon Whiteside Associates, Inc.

Charlotte, NC

Seamon Whiteside Associates, Inc. is a civil engineering and landscape architecture firm with seven offices across South Carolina and North Carolina. Its engineers and landscape architects design sites, roads, stormwater systems, parks, trails, campuses, and streetscapes for residential, commercial, hospitality, and institutional clients across the Southeast. Industrial site civil engineering with over thirty years of Southeast experience, water resources engineering, land surveying, and construction administration round out a comprehensive site design practice.

WebsitePhone7 offices6 projects1 leadersUpdated Jun 2026

Project: Carilion

Service: Civil EngineeringService: Site PlansService: Road and Sidewalk DesignIndustry: Land DevelopmentIndustry: ResidentialType: Civil Engineering+32 more

Sebago Technics

South Portland, ME

Inventive thinking. Real-world solutions.

WebsitePhone1 office1 projectsUpdated Jun 2026

Project: Town of St. George - Coastal Resiliency Project

Service: Civil EngineeringService: Utility Infrastructure Design (water, sewer, gas, electric)Service: Stormwater ManagementIndustry: Land DevelopmentIndustry: GovernmentType: Civil Engineering+33 more

Sera Engineered, LLC

Washington, DC

Engineering the Future

WebsitePhone2 offices7 projects5 leadersFounded 2019Updated Jun 2026

Project: 1525 Broadway Road

Service: Site DesignService: Commercial Site DesignService: Residential Site DesignIndustry: CommercialIndustry: ResidentialType: Civil Engineering+41 more

Shive-Hattery

Cedar Rapids, IA

People-Centered Design, Architecture + Engineering

Website8 offices1 credentialsSize Estimate: 650 employeesUpdated Jun 2026

Service detail: Architecture

Service: ArchitectureService: Branded EnvironmentsService: Building EnvelopeIndustry: CommercialIndustry: HealthcareType: Architecture & Engineering+40 more

Spartan Engineering, PSC

Caguas, PR

Sound Engineering Solutions for Manufacturing and Commercial Facilities

WebsitePhone1 office1 leadersFounded 2009Updated Jun 2026

Service detail: Mechanical and Utility Systems

Service: Mechanical and Utility SystemsService: Chilled Water SystemsService: Cooling Tower SystemsIndustry: PharmaceuticalIndustry: IndustrialType: Mechanical Engineering+42 more

Structural Solutions

Chico, CA

Creating Structural Solutions for Your Dream Projects

Website1 office1 leadersUpdated Jun 2026

Service detail: Residential Structural Engineering

Service: Residential Structural EngineeringService: 3D Structural ModelingIndustry: ResidentialType: Structural Engineering

SubTerra, Inc.

North Bend, WA

You Dream It, We Build It

WebsitePhone1 office5 projectsFounded 1991Updated Jun 2026

Project: Metro Goldline East

Service: Tunneling & Underground EngineeringService: Tunnel DesignService: Micro-TunnelingIndustry: TunnelsIndustry: MiningType: Geotechnical Engineering+16 more

Synergeer Engineering

Houston, TX

Leaders in Quality Engineering and Design

WebsitePhone1 office1 credentialsSize Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Engineering & Design

Service: Engineering & DesignService: Structural EngineeringService: Civil EngineeringIndustry: CommercialIndustry: IndustrialType: Civil Engineering+11 more

TVP Engineering

Albany, OR

Structural, civil, and architectural engineering services across 42 states

WebsitePhone1 office13 leaders5 credentialsSize Estimate: 10-49 employeesUpdated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Structural Design and StampingService: Multi-State PE LicensureIndustry: CommercialIndustry: ResidentialType: Structural Engineering+6 more

Talas Engineering, Inc.

Hayward, CA

Scientific analysis communicated clearly

WebsitePhone1 office6 leadersSize Estimate: 10-49 employeesUpdated Jun 2026

Service detail: Accident Reconstruction

Service: Accident ReconstructionService: Occupant KinematicsService: Vehicle Data ImagingIndustry: LegalIndustry: InsuranceType: Forensic Engineering+25 more

Tam Consulting Services LLC

Dallas, TX

Nationally Recognized Engineering & Quality Services

WebsitePhone2 offices3 projects5 leaders52 credentialsFounded 2016

Project: TxDOT Southern Gateway Design-Build

Service: Construction Engineering & Inspection (CE&I)Service: Materials Engineering & TestingService: Quality Assurance Program (QAP) Development & OVTIIndustry: TransportationIndustry: Highways & RoadsType: Transportation Engineering+10 more

Tarhun 3D

Design • Develop • Deliver

Website4 projects1 leadersSize Estimate: 1-10 employeesUpdated Jun 2026

Project: VectRx

Service: Product DesignService: Product Scope and DefinitionsService: Project Management for DesignIndustry: Arts & CultureIndustry: Medical DevicesType: Mechanical Engineering+21 more

Tejjy Inc.

Rockville, MD

Architectural Engineering Firm Leading Innovation in BIM & 3D Scanning

WebsitePhone2 offices8 projects2 leaders10 credentialsFounded 2006

Project: Rockville District Court House

Service: BIM/VDC ServicesService: Architectural BIM ModelingService: MEP BIM ServicesIndustry: CommercialIndustry: RetailType: Architecture & Engineering+51 more

The Design Connection

Rochester, MN

Residential & Commercial Design and Drafting Services Throughout Southeastern Minnesota

WebsitePhone1 officeUpdated Jun 2026

Service detail: Residential Design

Service: Residential DesignService: Custom home designService: Home additionsIndustry: ResidentialIndustry: CommercialType: Architecture & Engineering+14 more

The K W C Companies Inc

Corona, CA

Excellence in Engineering

WebsitePhone4 offices1 projects3 credentialsSize Estimate: 11-50 employeesUpdated Jun 2026

Project: Alberhill Ranch

Service: Civil EngineeringService: 3D Modeling and VisualizationService: Civil Improvement PlansIndustry: CommercialIndustry: IndustrialType: Civil Engineering+64 more

The Mouat Company, Inc.

Birmingham, AL

The Mouat Company, Inc. has delivered turnkey industrial facilities since 1924, originally as an equipment representative for the foundry industry before evolving into a design-build construction firm by the early 1970s. For more than 50 years, Mouat has designed and built foundry facilities, frac sand plants, and mineral processing plants across the U.S., Mexico, Europe, and Central Asia. Its fixed-price design-build model gives clients a defined project cost before contract award, eliminating the open-ended exposure common to cost-plus EPCM arrangements. Process design, 3D facility modeling, multi-discipline engineering coordination, and fabrication integration are all delivered under a single contract from concept through commissioning.

WebsitePhone1 officeFounded 1924Updated Jun 2026

Service detail: Concept Development

Service: Concept DevelopmentService: Process Throughput AnalysisService: Capital Cost EstimationIndustry: IndustrialIndustry: MiningType: Process Engineering+15 more

The Nomad Group, LLC

Morristown, NJ

Better decisions begin with better intelligence.

WebsitePhone5 offices2 projects5 leaders5 credentialsFounded 2006

Project: Project Sure Shot COVID-19 Tracking Dashboard

Service: Geospatial Intelligence, Digital Information and Data AnalyticsService: Geospatial Data ServicesService: Geospatial Data CreationIndustry: DefenseIndustry: FederalType: Defense Engineering+27 more

The Sigma Group

Milwaukee, WI

Single Source. Sound Solutions.

WebsitePhone1 office13 projects3 credentialsUpdated Jun 2026

Project: American Family Field (Miller Park) Stormwater

Service: Civil EngineeringService: Site DevelopmentService: Utility DesignIndustry: CommercialIndustry: RetailType: Civil Engineering+62 more

Thoroughbred Engineering

Lexington, KY

Design Engineer Construct

WebsitePhone1 office1 credentialsUpdated Jun 2026

Service detail: Site Planning and Civil Engineering

Service: Site Planning and Civil EngineeringService: Property due diligenceService: Feasibility studiesIndustry: CommercialIndustry: Food & BeverageType: Civil Engineering+52 more

TransDesign International, LLC

Montgomery, TX

TransDesign International, LLC is a consulting engineering practice serving the power transmission industry with experience in overhead transmission line design and lattice tower development. It provides services from preliminary studies and 3D modeling to full-scale tower testing and steel supply management, supporting utilities through every phase of transmission infrastructure development.

Website2 officesFounded 1983Updated Jun 2026

Service detail: Overhead Transmission Line Design

Service: Overhead Transmission Line DesignService: Preliminary Line Routing StudiesService: Three-Dimensional PLS-CADD ModelingIndustry: Power Transmission & DistributionIndustry: Electric UtilitiesType: Structural Engineering+35 more

Trestles, LLC

Goodlettsville, TN

Engineering Innovative and Intellectual Solutions for the Environment

WebsitePhone1 office1 credentialsSize Estimate: 1-50 employeesUpdated Jun 2026

Service detail: Natural Gas Engineering

Service: Natural Gas EngineeringService: Compressor Station EngineeringService: Station Retrofits and ReversalsIndustry: Oil & GasIndustry: Environmental & RemediationType: Environmental Engineering+94 more