Public engineering firm directory

Find engineering consulting firms by capability and location.

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ADV-SOC, Inc.

San Diego, CA

Mission-Driven.

WebsitePhone1 office9 projects2 leadersFounded 2012Updated Jun 2026

Project: Naval Air Station North Island Soil Investigation

Service: Environmental ServicesService: Phase I and Phase II Environmental Site AssessmentsService: Underground Storage Tank Assessment and ClosureIndustry: FederalIndustry: DefenseType: Architecture & Engineering+39 more

ARRO Consulting, Inc.

Lititz, PA

Your trusted partner for municipal engineering.

WebsitePhone13 offices8 projects4 leadersFounded 1946Size Estimate: 100-300 employees

Project: Upper Uwchlan Township Municipal Authority Administrator

Service: Civil & MunicipalService: Appointed Engineer representationService: Roadway and Infrastructure RehabilitationIndustry: GovernmentIndustry: UtilitiesType: Civil Engineering+50 more

ASA Engineering & Consulting, Inc.

Chattanooga, TN

From concept to close-out.

WebsitePhone1 office9 projects2 leadersFounded 2013Updated Jun 2026

Project: 1400 Chestnut Street Apartments

Service: Civil Engineering & Site DesignService: Site Layout, Grading & DrainageService: Roadway and Intersection DesignIndustry: Land DevelopmentIndustry: ResidentialType: Civil Engineering+45 more

Aeparmia Engineering PLLC

Austin, TX

Innovative Engineering Solutions for Utility Challenges & Needs

WebsitePhone3 offices13 projects1 leaders5 credentialsFounded 2017

Project: I-35 NEX South Project Electric and Telecom Utility Relocations

Service: Power and Fiber Utilities EngineeringService: Subsurface Utilities Engineering (SUE)Service: Public and Private Utilities Coordination and Conflict AnalysisIndustry: CommercialIndustry: ResidentialType: Civil Engineering+38 more

Apex Engineering Group

Fargo, ND

Apex Engineering Group brings clarity and confidence to complex engineering projects.

WebsitePhone7 offices11 projects5 leaders18 credentialsFounded 2010

Project: City of Detroit Lakes, MN Municipal Engineering Services

Service: Water EngineeringService: Water wells and intake structuresService: On-site pilot plantsIndustry: GovernmentIndustry: Water ResourcesType: Civil Engineering+83 more

Atlantic Testing Laboratories, Limited

Canton, NY

Atlantic Testing Laboratories, Limited (ATL) is a full-service engineering support firm with eleven offices throughout New York State, providing geotechnical engineering, materials testing, environmental services, and subsurface investigation to infrastructure, industrial, governmental, and private clients across the Northeast, Midwest, and Mid-Atlantic regions. ATL maintains a database of more than 6,000 completed geotechnical and subsurface investigation projects in the Northeastern United States, in-house geotechnical laboratories, a diverse fleet of drill rigs, and an in-house fabrication shop for custom field tools. Key capabilities include subsurface investigations (soil and rock sampling, SPT, CPT, groundwater monitor well construction), construction material testing (concrete, steel, asphalt, masonry), geotechnical engineering (foundation design, pavement design, slope stability, dynamic pile testing), environmental services (Phase 1 and 2 ESA, asbestos and lead surveys, mold assessment, SWPPP inspections, vapor intrusion assessments), and nondestructive testing.

Website2 offices4 projectsUpdated Jun 2026

Project: Tappan Zee Bridge

Service: Subsurface InvestigationsService: Soil and Rock SamplingService: Standard Penetration Testing (SPT)Industry: InfrastructureIndustry: GovernmentType: Geotechnical Engineering+46 more

Atwell

Southfield, MI

We create solutions for the built environment.

Website18 offices12 projects6 leaders8 credentialsSize Estimate: 1,000+ employeesUpdated Jun 2026

Project: Walmart Metro Atlanta Drone Delivery Operations Support

Service: Program & Development ServicesService: Program ManagementService: Owner's Representative ServicesIndustry: Land DevelopmentIndustry: Oil & GasType: Civil Engineering+38 more

Blew & Associates, P.A.

Fayetteville, AR

National Surveying, Engineering, and Assessment Firm

WebsitePhone1 office1 publicationsFounded 1891Updated Jun 2026

Service detail: ALTA/NSPS Land Title Surveys

Service: ALTA/NSPS Land Title SurveysService: Property boundariesService: Legal property descriptionsIndustry: CommercialIndustry: Land DevelopmentType: Land Surveying+79 more

Colliers Engineering & Design

Holmdel, NJ

Your success is our success; together we shape the spaces that move communities forward.

WebsitePhone1 office8 projects17 leaders8 credentialsSize Estimate: 1,000+ employees

Project: Frank Sinatra Drive Sinkhole & Emergency Seawall Rehabilitation

Service: Architecture & DesignService: Architectural DesignService: Building Engineering SystemsIndustry: CommercialIndustry: Data CentersType: Architecture & Engineering+68 more

Covington Civil and Environmental

Gulfport, MS

Gulf Coast Engineering + Environmental Solutions

WebsitePhone1 office6 projects8 leadersFounded 1992Size Estimate: 30+ employees

Project: City of Pass Christian ARPA Funded Projects

Service: Program & Project ManagementService: Program coordination and planningService: Contract and document managementIndustry: GovernmentIndustry: FederalType: Civil Engineering+61 more

Credere Associates, LLC

Westbrook, ME

Community Revitalization, Economic Development, Environmental Remediation and Engineering

WebsitePhone1 office4 projects3 leadersFounded 2007Size Estimate: Up to 25 employees

Project: Callahan Mine Superfund Site Tailings Impoundment Investigation and Stability Analysis

Service: Brownfields Assessment and CleanupService: Phase I Environmental Site AssessmentsService: Phase II Environmental InvestigationsIndustry: Environmental & RemediationIndustry: DefenseType: Environmental Engineering+29 more

D&B Engineers and Architects, DPC

Woodbury, NY

A Legacy Engineered From A Vision

WebsitePhone7 offices8 projects20 leadersFounded 1965Size Estimate: 100-499 employees

Project: Atlantic County Utilities Authority Project

Service: ArchitectureService: Sustainable DesignService: BIM & Technology-Driven DesignIndustry: CommercialIndustry: EducationType: Architecture & Engineering+37 more

DECON Environmental, Inc.

Scotts Valley, CA

Professional engineering, environmental assessment, and industrial hygiene services

WebsitePhone1 office11 projects7 credentialsUpdated Jun 2026

Project: Air Discharge Permitting for 300,000-Gallon Per Day Wastewater Treatment Plant

Service: Demolition Environmental ServicesService: Preparation and Presentation of Demolition Environmental PlansService: Demolition PermittingIndustry: Land DevelopmentIndustry: Food & BeverageType: Environmental Engineering+45 more

EnSafe Inc.

Memphis, TN

Creative Thinking. Custom Solutions.

WebsitePhone20 offices4 projects15 leaders4 credentialsFounded 1980

Project: Remediation of Perchlorate Contamination at NWIRP McGregor

Service: Environmental Site Assessment & InvestigationService: Phase I/II Environmental Site AssessmentsService: Soil and Groundwater InvestigationsIndustry: Environmental & RemediationIndustry: FederalType: Environmental Engineering+47 more

Engineering Alliance, Inc.

Engineering Alliance, Inc. provides multidisciplinary engineering and consulting services, specializing in civil engineering, environmental consulting, water systems, and air quality management. It serves municipal, industrial, mining, and utility clients with services spanning planning, permitting, design, and construction administration.

WebsiteUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Environmental ConsultingService: Surveying ServicesIndustry: GovernmentIndustry: MiningType: Civil Engineering+22 more

Essayon Engineering & Development, Inc.

Engineering solutions that build tomorrow

Website6 projects1 leadersFounded 2002Updated Jun 2026

Project: City of Caddo Mills Wastewater System Improvements

Service: Water and Wastewater System DesignService: Water Distribution Infrastructure DesignService: Wastewater Collection System EngineeringIndustry: WastewaterIndustry: Water SupplyType: Civil Engineering+14 more

Explosives Consulting and Engineering LLC

Shelburne, VT

Routinely Solving Non-Routine Problems

WebsitePhone1 office1 leaders3 credentialsSize Estimate: 1 employeesUpdated Jun 2026

Service detail: Explosives Facility Design and Startup

Service: Explosives Facility Design and StartupService: Conceptual Facility DesignService: Zoning and Regulatory ApprovalsIndustry: DefenseIndustry: Oil & GasType: Chemical Engineering+24 more

Fiedler Group

Pasadena, CA

Fiedler Group is a Pasadena, California-based design and engineering firm founded in 1957, specializing in fueling station and petroleum facility engineering. It provides site investigation reports, entitlement processing, design and engineering, permit acquisition, bidding and procurement assistance, construction support, and program management across the retail petroleum, convenience market, alternative fuels, industrial and petrochemical, food service, commercial, and government sectors throughout the United States. As of January 1, 2026, Fiedler Group joined TAIT and Associates.

WebsitePhone1 officeFounded 1957Updated Jun 2026

Service detail: Design and Engineering

Service: Site Investigation ReportsService: EntitlementService: Design and EngineeringIndustry: Oil & GasIndustry: RetailType: Environmental Engineering+14 more

GEI Consultants, Inc.

New York City, NY

Relentless seekers of the best solutions.

Website4 offices13 projects6 leaders3 credentialsUpdated Jun 2026

Project: Royse City, Texas Drainage Master Plan

Service: Geotechnical EngineeringService: Geostructural DesignService: Building Envelope ServicesIndustry: Water ResourcesIndustry: Water SupplyType: Geotechnical Engineering+40 more

H2E, Incorporated

Environmental Engineering & Consulting by Combining Prudence with Efficiency

WebsiteFounded 2009Updated Jun 2026

Service detail: Air Permitting and Compliance

Service: Air Permitting and ComplianceService: Water ServicesService: Land and Soils ServicesIndustry: Oil & GasIndustry: Renewable EnergyType: Environmental Engineering+5 more

HBK Engineering, LLC

Chicago, IL

A Proven Leader in Utility Engineering

WebsitePhone29 offices6 credentialsFounded 1998Size Estimate: 900+ employeesUpdated Jun 2026

Service detail: Electrical Utility Infrastructure Design

Service: Electrical Utility Infrastructure DesignService: Transmission and distribution line designService: Substation designIndustry: Electric UtilitiesIndustry: Power GenerationType: Environmental Engineering+48 more

Hampton, Lenzini and Renwick, Inc.

Elgin, IL

Engineering the Success of Our Communities

WebsitePhone4 offices5 projects9 leaders5 credentialsFounded 1965

Project: Tudor Court Street and Streetscape Improvements

Service: Preliminary EngineeringService: Feasibility AnalysisService: Agency CoordinationIndustry: InfrastructureIndustry: GovernmentType: Civil Engineering+52 more

Harshman CE Group, LLC

Washington, PA

Keep it simple - Do it right - Get it done

WebsitePhone2 offices4 projects11 leadersSize Estimate: 15-50 employeesUpdated Jun 2026

Project: Amwell Township East Hillsboro Road Bridge Replacement Project

Service: Civil EngineeringService: Site Design & Land DevelopmentService: Hydrologic & Hydraulic StudiesIndustry: GovernmentIndustry: FederalType: Civil Engineering+57 more

Holt Consulting Company, LLC

Columbia, SC

The Consultant of Choice for Aviation and Surface Transportation Projects Across the Southeast

WebsitePhone7 offices7 projects2 leaders7 credentialsFounded 2013

Project: Emergency Bridge Package 2018-2A

Service: Aviation ServicesService: Aviation PlanningService: Airfield DesignIndustry: AviationIndustry: AirportsType: Civil Engineering+24 more