Public engineering firm directory

Find engineering consulting firms by capability and location.

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50 States Engineering Corp.

Hackensack, NJ

Benefit from an innovative and diverse range of surveying and engineering experience.

WebsitePhone1 office7 projects3 leaders1 credentialsUpdated Jun 2026

Project: Admiration Foods Facility

Service: Land SurveyingService: Construction layout and stakeoutService: 3D laser scanningIndustry: TransitIndustry: RailType: Civil Engineering+28 more

Advanced Infrastructure Design, Inc.

Hamilton, NJ

Advanced Infrastructure Design, Inc. (AID) is a consulting engineering practice established in 1998. Headquartered in Hamilton, New Jersey, with an office in Philadelphia, Pennsylvania, it is staffed by licensed Professional Engineers, scientists, researchers, and technicians. The practice specializes in transportation infrastructure preservation, deploying advanced non-destructive testing (NDT) technologies to evaluate and design solutions for roads, bridges, tunnels, airports, substructures, foundations, and parking structures. It is led by President Mojgan Mohtashami, PhD, MBA.

Website2 offices1 leadersFounded 1998Size Estimate: 10-30 employeesUpdated Jun 2026

Service detail: Pavement Engineering

Service: Pavement EngineeringService: Comprehensive Non-Destructive Field TestingService: Functional LCMS AssessmentIndustry: GovernmentIndustry: TransportationType: Civil Engineering+57 more

Dawn Underground Engineering, Inc.

Flemington, NJ

Tunnels and Underground Structures Consultants

WebsitePhone1 office18 projectsUpdated Jun 2026

Project: City Tunnel No. 3

Service: Geotechnical EngineeringService: Subsurface Investigation ProgramsService: Geotechnical Data and Baseline ReportsIndustry: TunnelsIndustry: WastewaterType: Civil Engineering+19 more

GFT Infrastructure, Inc.

Chicago, IL

Ingenuity That Shapes Lives

WebsitePhone12 offices10 projects10 leaders8 credentials3 publications

Project: O'Hare International Airport Terminal 5 Expansion

Service: Transportation EngineeringService: Roadway Planning and EngineeringService: High-Availability Transit FacilitiesIndustry: TransportationIndustry: BridgesType: Architecture & Engineering+43 more

Gedeon GRC Consulting

Syosset, NY

Engineering & Construction leaders with a robotics advantage

WebsitePhone5 offices11 leaders1 credentialsUpdated Jun 2026

Service detail: Civil / Site Engineering

Service: Civil / Site EngineeringService: Highway and Roadway DesignService: Grading and Drainage DesignIndustry: Arts & CultureIndustry: AviationType: Civil Engineering+46 more

Hill International, Inc.

Mt. Laurel, NJ

Delivering the Infrastructure of Change

WebsitePhone1 office1 projects1 leaders1 credentialsFounded 1976

Project: Valley Metro South Central Extension and Downtown Hub

Service: Construction ManagementService: Project ManagementService: Program ManagementIndustry: CommercialIndustry: Arts & CultureType: Owner's Engineer+38 more

INFOTRAN Engineers & Architects, PC

New York, NY

We build for the benefit of all

WebsitePhone2 offices3 projects1 leaders2 credentialsFounded 2007

Project: Culver Line CBTC System

Service: Traffic Engineering & Transportation PlanningService: Traffic Data Collection & AnalysisService: Road Safety Audits & ReviewsIndustry: BridgesIndustry: Highways & RoadsType: Architecture & Engineering+47 more

Kilduff Underground Engineering

Denver, CO

Tunnels, Underground Design, and Construction Management

WebsitePhone3 offices6 projects6 leaders1 credentialsUpdated Jun 2026

Project: Pipe Roof Canopy Tunnel Design, Downtown Salt Lake City

Service: Underground & Geotechnical DesignService: Trenchless Design TechnologiesService: Support of Excavation (SOE) DesignIndustry: TunnelsIndustry: InfrastructureType: Civil Engineering+19 more

MAKS Engineers, PC

Hamilton Township, NJ

Professional Engineering Corporation Serving the Tri-State Region of New Jersey, New York and Pennsylvania

WebsitePhone1 office30 projectsUpdated Jun 2026

Project: I-81 Viaduct Phase 1, Contract 1: RFP Design Phase

Service: Structural & Architectural DesignService: Bridge DesignService: Tunnel DesignIndustry: BridgesIndustry: TunnelsType: Structural Engineering+24 more

Modjeski and Masters, Inc.

Mechanicsburg, PA

One of the world's leading bridge engineering practices

WebsitePhone19 offices7 projects2 leaders2 credentialsFounded 1893

Project: Hawk Falls Bridge Replacement

Service: Bridge DesignService: Fixed Bridge DesignService: Movable Bridge DesignIndustry: BridgesIndustry: TransportationType: Structural Engineering+26 more

PARA Engineers

Edison, NJ

Building a Stronger Infrastructure: Together.

WebsitePhone1 office1 leadersFounded 2017Updated Jun 2026

Service detail: Transportation Inspection & Supervision

Service: Transportation Inspection & SupervisionService: Roadway Construction and RehabilitationService: Asphalt & Concrete PavingIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+25 more

SI Engineering, P.C.

New York, NY

High-Quality Engineering Services for the New York Metropolitan Area and New Jersey

WebsitePhone4 offices10 projects9 leaders7 credentialsFounded 2003

Project: Project Management Services for the LIRR Mainline Third Track Expansion

Service: Construction Inspection / Resident Engineering InspectionService: Daily Inspection ServicesService: Claim and Schedule ManagementIndustry: RailIndustry: TransitType: Civil Engineering+48 more

Savin Engineers, P.C.

Pleasantville, NY

Improving Quality of Life

WebsitePhone4 offices37 projects1 credentialsFounded 1988Updated Jun 2026

Project: Greenburgh Central School District

Service: Construction Management & Owner's RepresentativeService: Owner's Representative ServicesService: Safety ManagementIndustry: CommercialIndustry: EducationType: Civil Engineering+84 more

Techno Consult Inc.

Princeton, NJ

Managing Better Infrastructure

Website2 offices8 projects9 leadersFounded 2001Size Estimate: 150+ employeesUpdated Jun 2026

Project: NYCDEP Hunts Point Phase IV - Carbon Addition

Service: Construction ManagementService: Construction Project AdministrationService: Construction InspectionIndustry: RailIndustry: TransitType: Civil Engineering+16 more

Wang Technology, Inc.

Jamesburg, NJ

Delivering precision monitoring, data-driven insights, and engineering solutions for safer infrastructure.

WebsitePhone1 office5 projects9 leadersFounded 1988Updated Jun 2026

Project: Pulaski Skyway

Service: Geotechnical, Structural & Vibration MonitoringService: Automated Motorized Total StationsService: Vibration MonitoringIndustry: InfrastructureIndustry: TunnelsType: Geotechnical Engineering+18 more