Public engineering firm directory

Find engineering consulting firms by capability and location.

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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

Advantage Engineering Associates, P.C.

Cranbury, NJ

Engineering design, construction support and construction inspection services for transportation infrastructure

WebsitePhone2 offices8 projects10 leadersFounded 2004Size Estimate: 70-249 employees

Project: Route 440 Ramp Over Route 35 Bridge Deck Replacement

Service: Transportation EngineeringService: Highway and Traffic EngineeringService: Intelligent Transportation Systems (ITS) EngineeringIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+26 more

Airport Design Consultants, Inc.

Columbia, MD

A focused leader in Aviation Consulting Services since 2006

Website8 offices4 leaders15 credentialsFounded 2006Updated Jun 2026
Service: Airfield DesignService: Airport PlanningService: Terminal & Landside DesignIndustry: AirportsIndustry: AviationType: Aviation Engineering+4 more

Anchor QEA

Seattle, WA

Transforming Our Environment and Communities, with Integrity and Vibe

WebsitePhone28 offices4 projects4 leadersSize Estimate: 200-1,000 employeesUpdated Jun 2026

Project: Hancock County Marsh Living Shoreline

Service: EngineeringService: Civil EngineeringService: Coastal ResilienceIndustry: Power GenerationIndustry: FederalType: Civil Engineering+46 more

CSA Group

San Juan, PR

Full-Service Project Delivery and Program Management

WebsitePhone8 offices5 projects5 leaders4 credentialsSize Estimate: 50-199 employees

Project: PR-52 Congestion Management Project

Service: Program & Construction ManagementService: Program ManagementService: Construction ManagementIndustry: AirportsIndustry: CommercialType: Architecture & Engineering+37 more

Cantos Inc.

New York, NY

YOU WANT IT, We Build It.

WebsitePhone1 office5 projects11 leaders1 credentialsSize Estimate: 10-49 employees

Project: Penn Station Phase 1

Service: EngineeringService: Civil EngineeringService: Structural EngineeringIndustry: TransitIndustry: BridgesType: Architecture & Engineering+12 more

City and Sea Group LLC (CAS Group)

The Woodlands, TX

From concept to completion, CAS Group is your trusted partner for successful project delivery.

WebsitePhone2 offices3 projects3 leaders1 credentialsFounded 2010

Project: Small-Scale LNG Facility

Service: Advisory ServicesService: Investment Opportunities Advisory & Due DiligenceService: Project Development Advisory ServicesIndustry: MarineIndustry: Ports & HarborsType: Civil Engineering+44 more

Columbia Consulting Engineers, PLLC

New York, NY

Our vision is to connect the world through infrastructure

WebsitePhone1 officeFounded 2020Updated Jun 2026

Service detail: Engineering Design

Service: Engineering DesignService: Roads EngineeringService: Bridge EngineeringIndustry: BridgesIndustry: Highways & RoadsType: Civil Engineering+12 more

Concord Engineering Group Inc

Voorhees, NJ

Building Your Tomorrow!

WebsitePhone3 offices5 projects10 leaders1 credentialsFounded 1989

Project: Mount Airy Casino Resort

Service: Commercial & MEP/FP EngineeringService: Mechanical and HVACService: Electrical EngineeringIndustry: CommercialIndustry: Multifamily ResidentialType: MEP+37 more

Conemco Consultants

Miami, FL

Conemco Consultants is a full-service engineering and land surveying firm headquartered in Miami, Florida, with offices in Palm Beach, Broward, and New York. It delivers structural, civil, and MEP engineering design; structural and civil inspection and special inspection services; construction management; and land surveying and mapping. With more than 100 years of collective staff experience and over 1,000 completed projects, Conemco serves both the public and private sectors across Florida, New York, and other states. It is a certified special inspection agency in Florida and New York, and holds certified inspector status in NY, FL, GA, TX, and AL. Clients span commercial, residential, hospitality, education, healthcare, aviation, government, and water/wastewater sectors.

WebsitePhone3 offices2 credentialsUpdated Jun 2026

Service detail: Structural Engineering Design

Service: Structural Engineering DesignService: Structural Design & BIM/3D ModelingService: Structural Restoration & Repair PlansIndustry: CommercialIndustry: ResidentialType: Structural Engineering+25 more

DY Consultants

New York, NY

Helping Our Clients Reach New Heights

WebsitePhone1 office15 projects11 leaders1 credentialsFounded 1991

Project: JFK New Terminal 1

Service: Airport PlanningService: Aviation Planning Standards ComplianceService: Master Plan Vision ImplementationIndustry: AviationIndustry: AirportsType: Aviation Engineering+35 more

Earth Design Associates, Inc.

Hartford, CT

Consulting Engineers and Scientists

WebsitePhone2 offices1 leadersUpdated Jun 2026

Service detail: Civil and Geotechnical Engineering

Service: Civil and Geotechnical EngineeringService: Geotechnical Site InvestigationsService: Foundation DesignIndustry: TransportationIndustry: InfrastructureType: Civil Engineering+25 more

Excelsior Engineering & Land Surveying P.C.

New York, NY

Providing Premier Engineering Throughout the Tri-State Area and Florida

Website1 office2 projects1 leadersUpdated Jun 2026

Project: 95th Street Shellbank Basin Infrastructure Improvements

Service: Construction ManagementService: Resident Engineering InspectionService: Construction InspectionIndustry: InfrastructureIndustry: Highways & RoadsType: Civil Engineering+42 more

Frame Design Corp

New York, NY

Trusted Structural Engineering Firm

Website1 officeUpdated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Constructability ReviewsService: Construction ManagementIndustry: CommercialType: Structural Engineering+12 more

GZA GeoEnvironmental, Inc.

Norwood, MA

Solving Complex Challenges in Natural and Built Environments

WebsitePhone35 offices4 projectsSize Estimate: 800 employeesUpdated Jun 2026

Project: Upper Roberts Meadow Reservoir Dam Breach and Stream Restoration Project

Service: Geotechnical EngineeringService: Environmental Site Investigation and RemediationService: Environmental Site InvestigationIndustry: AgricultureIndustry: IndustrialType: Geotechnical Engineering+29 more

Gall Zeidler Consultants

Ashburn, VA

Innovative tunnel, geotechnical, and underground engineering solutions

WebsitePhone10 offices7 projects3 leaders7 credentialsUpdated Jun 2026

Project: Potomac River Tunnel

Service: Tunnel and Underground Engineering DesignService: Reference and Detailed DesignService: Design Concepts, Options and FeasibilityIndustry: TunnelsIndustry: TransitType: Civil Engineering+25 more

HDR | Nova Consulting

Miami (Doral), FL

HDR | Nova Consulting specializes in civil and environmental engineering, construction management, and program management services. It supports public sector clients across Florida, New York, Washington D.C., and Maryland, focusing on water resources, transportation, infrastructure resilience, and environmental planning. Its multidisciplinary team includes professional engineers, scientists, and geologists who deliver services from initial project planning and environmental assessments through construction and final close-out.

WebsitePhone5 offices5 projects7 leadersUpdated Jun 2026

Project: Gowanus Pump Station

Service: Civil EngineeringService: Civil Infrastructure DesignService: Stormwater ManagementIndustry: Water ResourcesIndustry: WastewaterType: Civil Engineering+23 more

IH Engineers, P.C.

Princeton, NJ

First Choice of Our Clients for Over 25 Years

WebsitePhone3 offices6 projects10 leaders10 credentialsFounded 1999

Project: PANYNJ PATH World Trade Center Terminal Hub

Service: Bridge DesignService: Structural Design Of Highway BridgesService: Seismic RetrofitsIndustry: BridgesIndustry: TransportationType: Civil Engineering+22 more

IMDC, Inc.

Orlando, FL

Quality delivery of multidisciplinary engineering, construction management, and facility support services

WebsitePhone7 offices5 projects1 credentialsFounded 1983Updated Jun 2026

Project: NASA Testing Facility and Shelter Platform Design

Service: Engineering ServicesService: Electrical Systems DesignService: Mechanical and Piping DesignIndustry: CommercialIndustry: IndustrialType: Architecture & Engineering+35 more

KC Engineering and Land Surveying, P.C.

New York, NY

A Diversified, Multi-Disciplined Consulting Engineering Firm

WebsitePhone3 offices1 projects2 credentialsSize Estimate: 100-200 employeesUpdated Jun 2026

Project: NYSDOT I-81 Viaduct Phase 1, Contract 2

Service: Civil EngineeringService: Site Grading and EarthworkService: Drainage and Stormwater ManagementIndustry: Highways & RoadsIndustry: TransportationType: Civil Engineering+42 more

KHAFRA Engineering Consultants, Inc.

Atlanta, GA

Evaluate - Solve - Deliver

WebsitePhone7 offices4 projects6 leaders10 credentialsFounded 1986

Project: Lincoln Park Green Infrastructure

Service: ArchitectureService: Architectural designService: Design/Build deliveryIndustry: FederalIndustry: GovernmentType: Architecture & Engineering+71 more

Liberty Environmental, Inc.

Reading, PA

Providing Innovative Solutions to Complex Environmental Problems

WebsitePhone5 offices4 leaders3 credentials1 publicationsFounded 2004

Service detail: Regulatory Compliance

Service: Regulatory ComplianceService: Air PermittingService: SPCC Plan Development and UpdatesIndustry: CommercialIndustry: Land DevelopmentType: Environmental Engineering+48 more

Lu Engineers

Rochester, NY

Partnering to Provide Enduring Solutions

WebsitePhone7 offices2 projectsFounded 1980Size Estimate: 25-100 employeesUpdated Jun 2026

Project: Route 88, Main Street Newark Reconstruction

Service: Environmental EngineeringService: Hazardous Materials ServicesService: Asbestos SurveysIndustry: AviationIndustry: GovernmentType: Aviation Engineering+38 more

M6 Engineering PC

New York, NY

M6 Engineering PC is a New York-based construction engineering and management practice founded by Jimmy Maldonado, PE, a licensed Professional Engineer with extensive experience in both the public and private sectors. It specializes in resident engineering and inspection, construction management, project controls, and claims analysis for complex infrastructure projects including tunneling, highways, bridges, mass transit, and utilities.

Website1 office1 leadersSize Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Resident Engineering and Inspection (REI)

Service: Resident Engineering and Inspection (REI)Service: Construction EngineeringService: Bridge Rehabilitation & ConstructionIndustry: TransportationIndustry: GovernmentType: Civil Engineering+18 more