Public engineering firm directory

Find engineering consulting firms by capability and location.

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154 Tech LLC

Santa Barbara, CA

Advanced systems engineering, geospatial intelligence, and end-to-end program lifecycle support

WebsitePhone1 office2 credentialsUpdated Jun 2026

Service detail: Technical Program Management

Service: Technical Program ManagementService: End-to-End Program ManagementService: Risk ManagementIndustry: DefenseIndustry: FederalType: Defense Engineering+28 more

20/10 Engineering Group, LLC

Sustainable Designs | Better Engineering Vision

Website9 projectsUpdated Jun 2026

Project: Trinity International University - New Waybright Student Center

Service: Mechanical, Electrical, and Plumbing EngineeringService: HVAC and Climate Control SystemsService: Plumbing and Process Piping DesignIndustry: EducationIndustry: HealthcareType: MEP+26 more

3-Tier Alaska

Fairbanks, AK

Civil & Environmental Engineering, Surveying

WebsitePhone3 officesUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Septic System Design and TestingService: Road Design and InspectionIndustry: ResidentialIndustry: CommercialType: Civil Engineering+19 more

3Bears Technical Services

Hixson, TN

Experts in Nuclear Operations and Waste Management Solutions

WebsitePhone1 office2 credentialsUpdated Jun 2026

Service detail: Engineering and Project Management

Service: Engineering and Project ManagementService: Mechanical EngineeringService: Electrical EngineeringIndustry: NuclearIndustry: Environmental & RemediationType: Environmental Engineering+31 more

3T Design & Development LLC

Kansas City, MO

Air. Land. Water.

WebsitePhone1 office1 leadersFounded 2009Updated Jun 2026

Service detail: Air Quality and Environmental Compliance

Service: Air Quality and Environmental ComplianceService: Air Quality Permitting SupportService: Regulatory Review and ComplianceIndustry: TransportationIndustry: Water SupplyType: Civil Engineering+25 more

3jk Engineering Consultants Llc

Espanola, NM

Solving demanding technical problems through engineering, analysis, prototyping, and testing.

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Engineering and Design

Service: Engineering and DesignService: Custom Equipment Engineering and DesignService: Tooling, Jigs, and FixturesIndustry: Oil & GasIndustry: AerospaceType: Acoustic Consulting+30 more

A & M Engineering and Environmental Services, Inc.

Tulsa, OK

Providing Quality Services for Over 30 Years

WebsitePhone4 offices5 projects2 credentialsFounded 1984Updated Jun 2026

Project: Cumberland Levee Repair at Lake Texoma

Service: Construction & Remediation ServicesService: Landfill ConstructionService: Impoundments & Water StructuresIndustry: Environmental & RemediationIndustry: FederalType: Environmental Engineering+72 more

A & S Engineers, Inc.

San Francisco, CA

Full-service Mechanical, Electrical, Plumbing Engineering and Commissioning Firm

Website1 office6 leadersUpdated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: HVAC & Hydronic SystemsService: Energy Modeling & AnalysisIndustry: Multifamily ResidentialIndustry: Data CentersType: MEP+18 more

A&M Consulting Engineers

Visalia, CA

Moving Our Communities Infrastructure Forward

WebsitePhone2 offices3 projectsUpdated Jun 2026

Project: Gateway Park

Service: Water ResourcesService: Hydraulic AnalysisService: Municipal Water Well Planning and DesignIndustry: GovernmentIndustry: TransportationType: Civil Engineering+44 more

A-Tech Consulting, Inc.

Orange, CA

Creating A Safer Tomorrow, Today

WebsitePhone4 offices7 leaders8 credentialsFounded 2002Updated Jun 2026

Service detail: Industrial Hygiene

Service: Industrial HygieneService: Asbestos Survey and ConsultingService: Lead-Based Paint AssessmentIndustry: Environmental & RemediationIndustry: CommercialType: Environmental Engineering+21 more

A. G. Consulting Engineering, PC

New York, NY

A. G. Consulting Engineering, PC is an established MEP and construction management consulting practice. It offers mechanical, electrical, plumbing, fire protection, fire engineering, LEED consulting, special inspection, and construction management services for infrastructure, institutional, and public works projects.

WebsitePhone5 offices8 projects7 leaders13 credentialsFounded 1994

Project: NYCT Fulton Street Transit Center

Service: MEP EngineeringService: Mechanical and HVAC Systems DesignService: Electrical Systems EngineeringIndustry: TransitIndustry: RailType: MEP+17 more

A.E. Hodsdon Consulting Engineers

Waterville, ME

Leaders in professional engineering for over 40 years

WebsitePhone1 office1 projects1 leadersFounded 1974Updated Jun 2026

Project: Passamaquoddy Water Treatment Plant

Service: EngineeringService: Water Systems DesignService: Wastewater Systems DesignIndustry: GovernmentIndustry: UtilitiesType: Civil Engineering+31 more

A.M.I. Engineering LLC

Miami, FL

Providing Engineering Solutions for Sustainable Infrastructure

WebsitePhone1 office4 projects1 leaders14 credentialsUpdated Jun 2026

Project: Lummus Park Waterfront Redevelopment

Service: Transportation InfrastructureService: System Planning and AnalysisService: Municipal Roadway SystemsIndustry: AirportsIndustry: GovernmentType: Civil Engineering+34 more

A1 Consulting Group, Inc.

Raleigh-Durham, NC

Leaders in Design, Construction, and Environmental Services

WebsitePhone1 office8 projects1 leaders5 credentialsFounded 1971

Project: RDU Airport Terminal 2 Expansion

Service: Engineering and Design ServicesService: Geotechnical and Geological EngineeringService: Civil and Site EngineeringIndustry: AirportsIndustry: CommercialType: Civil Engineering+41 more

AAI Environmental Corporation

Ashland City, TN

Professional environmental site assessments and due diligence services nationwide

WebsitePhone1 office6 projects1 credentialsFounded 1995Updated Jun 2026

Project: Windmill Farm Initial Planning Study

Service: Phase I Environmental Site Assessment (ESA)Service: Phase II Environmental Site AssessmentService: Phase III Environmental AssessmentIndustry: CommercialIndustry: ResidentialType: Environmental Engineering+34 more

AB Consultants, Inc.

Lanham, MD

Multidisciplinary engineering and support services in the Baltimore-Washington area

WebsitePhone2 offices1 projects1 credentialsFounded 1993Updated Jun 2026

Project: WMATA Bus System Renovations

Service: Land PlanningService: Zoning StudiesService: Land Use Feasibility StudiesIndustry: GovernmentIndustry: TransportationType: Civil Engineering+82 more

ABAM Engineers Inc.

Houston, TX

Driving Innovation and Digitization in Engineering

WebsitePhone2 officesUpdated Jun 2026

Service detail: Civil and Infrastructure Engineering

Service: Civil and Infrastructure EngineeringService: Site Analysis and DesignService: Site Master PlanningIndustry: CommercialIndustry: IndustrialType: Civil Engineering+38 more

ABD Engineering & Design

Grand Rapids, MI

Acoustics, noise, vibration & audio-visual systems

Website2 officesFounded 1962Updated Jun 2026

Service detail: Architectural Acoustics

Service: Architectural AcousticsService: Acoustical DesignService: Acoustical EngineeringIndustry: AgricultureIndustry: Arts & CultureType: Acoustic Consulting+20 more

ACM Engineering & Environmental Services, Inc.

South Bend, IN

ACM Engineering & Environmental Services, Inc. is a national environmental and engineering services firm founded in 1988. AIHA LAP EMLAP and NVLAP-accredited laboratories in South Bend, IN and Tampa, FL support asbestos and mold sample analysis with same-day turnaround options. Field offices in Fort Wayne, IN and Fort Lauderdale, FL extend regional coverage across Indiana and Florida. ACM serves homeowners and businesses with asbestos inspection and testing, mold and lead services, indoor air quality assessments, radon testing, Phase I environmental site assessments, expert witness services, and professional engineering and environmental consulting.

Website4 offices5 credentialsFounded 1988Updated Jun 2026

Service detail: Asbestos Services

Service: Asbestos ServicesService: Asbestos surveys and inspections by licensed inspectorsService: Bulk sample analysis in accredited laboratoryIndustry: ResidentialIndustry: CommercialType: Environmental Engineering+42 more

ACP Group

Caguas, PR

The right design and construction partner in Puerto Rico

WebsitePhone1 office12 projectsUpdated Jun 2026

Project: Construction of Sanitary Sewer System Culebra, Phase II

Service: Project and Construction ManagementService: Construction Project ManagementService: Bid Process AdministrationIndustry: GovernmentIndustry: Water SupplyType: Architecture & Engineering+17 more

ACT Engineers, Inc.

Robbinsville, NJ

Civil, Coastal, and Environmental Engineering and Consulting Practice

WebsitePhone3 offices5 projects8 leaders6 credentialsFounded 1991

Project: Arney's Mount West Trail

Service: Civil/Site EngineeringService: Coastal EngineeringService: Flooding and ResiliencyIndustry: GovernmentIndustry: Land DevelopmentType: Civil Engineering+28 more

ACT ONE & Associates

Harrisburg, PA

ACT ONE & Associates is a consulting engineering and land surveying firm established in 2012 and based in Harrisburg, Pennsylvania. Licensed in Pennsylvania as Professional Engineers, Professional Land Surveyors, and a Sewage Enforcement Officer, the firm serves builders, contractors, developers, individual property owners, institutions, and municipalities with a broad range of civil, environmental, and structural engineering services.

WebsitePhone1 officeFounded 2012Updated Jun 2026

Service detail: Land Surveying

Service: Land SurveyingService: Boundary surveyService: FEMA flood elevation certificateIndustry: GovernmentIndustry: CommercialType: Civil Engineering+14 more

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

AE2S

Bismarck, ND

Empowering People. Enhancing Lives.

Website22 offices6 leadersFounded 1991Updated Jun 2026

Service detail: Water and Wastewater Engineering

Service: Water and Wastewater EngineeringService: WaterService: WastewaterIndustry: Automation & ControlsIndustry: Environmental & RemediationType: Civil Engineering+29 more