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.

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ANS

Scotch Plains, NJ

Engineering with integrity & purpose.

WebsitePhone1 office7 projects12 leadersSize Estimate: 100-300 employeesUpdated Jun 2026

Project: The Virginia Vanguard

Service: Civil, Site & Land DevelopmentService: Site Development & PermittingService: Regulatory Coordination & RepresentationIndustry: Renewable EnergyIndustry: SolarType: Civil Engineering+57 more

Acorn Engineering, Inc.

Portland, ME

Civil Engineering, Surveying, and Landscape Architecture in Maine

WebsitePhone3 offices3 projects1 leaders2 credentialsUpdated Jun 2026

Project: Watt Samaki Buddhist Temple

Service: Civil EngineeringService: Site Development DesignService: Utility DesignIndustry: ResidentialIndustry: CommercialType: Civil Engineering+38 more

CHA Consulting, Inc.

Albany, NY

Finding a better way.

Website1 office10 leaders3 credentialsFounded 1952Size Estimate: 2,100 employeesUpdated Jun 2026

Service detail: Transportation Solutions

Service: Transportation SolutionsService: Accelerated Bridge Construction (ABC) Design & ConsultingService: Bridge Design & AnalysisIndustry: TransportationIndustry: Highways & RoadsType: Architecture & Engineering+182 more

Cedarville Engineering Group, LLC

Pottstown, PA

Plan. Design. Build. Greatness.

WebsitePhone1 office8 projectsFounded 2010Size Estimate: 25-100 employeesUpdated Jun 2026

Project: Industrial Stormwater Compliance

Service: Civil EngineeringService: Capital Improvements Planning and DesignService: Stormwater Management DesignIndustry: FederalIndustry: GovernmentType: Civil Engineering+71 more

Citadel Engineering Company

Salt Lake City, UT

Where Precision Meets Reliability

WebsitePhone1 office15 credentialsFounded 2015Updated Jun 2026

Service detail: Engineering Design

Service: Engineering DesignService: Feasibility Studies and Project PlanningService: Detailed Design and AnalysisIndustry: Oil & GasIndustry: Power GenerationType: Process Engineering+53 more

Davey Resource Group

Kent, OH

Davey Resource Group (DRG) is the environmental consulting division of The Davey Tree Expert Company, offering wetland and stream services, environmental design, ecosystem restoration, stormwater management and compliance, landscape architecture, civil engineering, and surveying. DRG serves utilities, solar energy developers, and federal agencies nationwide, with expertise in NEPA compliance, threatened and endangered species habitat assessments, site assessment and remediation, and right-of-way vegetation management.

Website1 office1 projectsFounded 1880Updated Jun 2026

Project: DRG Helps Utilities Ramp Up Sustainability Efforts Using Pollinator Habitats

Service: Wetland & StreamService: Environmental Design & Ecosystem RestorationService: Mitigation SolutionsIndustry: Environmental & RemediationIndustry: FederalType: Environmental Engineering+17 more

GMTS, PSC

San Juan, PR

Geoprofessional and Materials Testing Services

WebsitePhone1 office13 projects3 leaders4 credentialsFounded 1996

Project: Route PR-66 Phase I and II

Service: Geotechnical EngineeringService: Site EvaluationService: Geotechnical Design AnalysisIndustry: Highways & RoadsIndustry: Ports & HarborsType: Geotechnical Engineering+52 more

Otisco Engineering Ltd.

Westerville, OH

Creating Sensible, Sustainable Engineered Solutions.

WebsitePhone1 office7 projects1 leaders10 credentials1 publications

Project: NASA Glenn Bioswale

Service: Mechanical EngineeringService: HVAC Design & InstallationService: Plumbing EngineeringIndustry: CommercialIndustry: ResidentialType: Environmental Engineering+37 more

Princeton Hydro, LLC

Trenton, NJ

Inspired by Nature. Engineered with Science.

WebsitePhone1 office9 projects8 leaders20 credentials6 publications

Project: Colonial Lake Bank Stabilization and Landscape Architecture

Service: Water Resources EngineeringService: Stormwater Management and Green Infrastructure DesignService: Flood Modeling and Floodplain AnalysisIndustry: GovernmentIndustry: Environmental & RemediationType: Environmental Engineering+40 more

Thomas Engineering Group, LLC

Oak Park, IL

Delivering Small Firm Service and Expertise with Large Firm Experience and Innovation

WebsitePhone3 offices14 projects9 leaders6 credentialsFounded 2008

Project: Edens Spur Roadway and Bridge Reconstruction

Service: Transportation Planning and DesignService: State-led and locally-led Phase I studiesService: Feasibility studies and alternatives analysesIndustry: GovernmentIndustry: Highways & RoadsType: Civil Engineering+55 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

V3 Companies

Chicago, IL

The Vision to Transform with Excellence

Website14 offices7 projects15 leaders2 credentialsFounded 1983Updated Jun 2026

Project: Elgin O'Hare Western Access Project

Service: Land DevelopmentService: Site Civil EngineeringService: Environmental ConsultingIndustry: CommercialIndustry: EducationType: Civil Engineering+49 more

Wolf Water Resources, Inc.

Portland, OR

Working with Nature, Partnering with People.

WebsitePhone1 office10 projects13 leaders3 credentialsSize Estimate: 10-50 employees

Project: Steigerwald Floodplain Reconnection

Service: Ecosystem RestorationService: Floodplain Reconnection and EnhancementService: River Channel and Creek RealignmentIndustry: GovernmentIndustry: FederalType: Environmental Engineering+28 more