Public engineering firm directory

Find engineering consulting firms by capability and location.

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A-Tech/Northwest, Inc.

Get an unbiased answer! Our only business is Roof Consulting

Website10 credentialsFounded 1976Updated Jun 2026

Service detail: Roof Consulting

Service: Roof ConsultingService: Visual Roof InspectionsService: Roof Problem AnalysisIndustry: GovernmentIndustry: CommercialType: Materials Testing+14 more

AEED, Inc.

Chattanooga, TN

Sustainable, Innovative Engineering Solutions

WebsitePhone1 office2 credentialsFounded 2001Updated Jun 2026

Service detail: Engineering, Consulting and Design

Service: Engineering, Consulting and DesignService: Mechanical EngineeringService: Clean Room Design and CommissioningIndustry: CommercialIndustry: HospitalityType: MEP+53 more

AFVET Solutions, LLC

Warner Robins, GA

Providing responsive, innovative solutions in aviation, engineering, logistics, and program management services.

WebsitePhone2 offices1 leadersFounded 2007Updated Jun 2026

Service detail: Engineering Support

Service: Engineering SupportService: Systems Engineering and IntegrationService: Avionics ModernizationIndustry: AviationIndustry: DefenseType: Aviation Engineering+30 more

AIM Engineering Consultants, Inc.

Pleasanton, CA

Best-In-Class Engineering Expertise

WebsitePhone1 office3 projects1 leadersUpdated Jun 2026

Project: Fremont Blvd/Old Warm Springs Blvd - New Signal

Service: Civil EngineeringService: Municipal Plan CheckingService: Plans, Specifications, and Estimates (PS&E)Industry: TransportationIndustry: Highways & RoadsType: Civil Engineering+41 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

ATSI, Inc.

Amherst, NY

Changing the World Since 1977

WebsitePhone1 officeFounded 1977Size Estimate: 10-49 employeesUpdated Jun 2026

Service detail: Front-End Engineering & Design (FEED)

Service: Front-End Engineering & Design (FEED)Service: FEL-1: Conceptual Engineering & FeasibilityService: FEL-2: Planning & Specification DevelopmentIndustry: Renewable EnergyIndustry: ChemicalsType: Process Engineering+39 more

AVI, PC

Cheyenne, WY

Engineering Excellence

WebsitePhone2 offices9 projects6 leaders2 credentialsUpdated Jun 2026

Project: Casper's West Belt Loop Road

Service: TransportationService: Roadway DesignService: Drainage DesignIndustry: GovernmentIndustry: TransportationType: Civil Engineering+51 more

AVT Simulation

Orlando, FL

Improving Readiness Through Training

WebsitePhone1 office4 projects3 leaders3 credentialsFounded 1998

Project: Apache Gunnery Trainer (AGT) Delivery

Service: Flight Simulator DevelopmentService: Rotary Wing TrainersService: Fixed Wing TrainersIndustry: DefenseIndustry: AviationType: Defense Engineering+46 more

Acropolis Engineers

Raleigh, NC

Engineering. Delivered.

WebsitePhone2 offices1 projects4 leaders1 credentialsFounded 2014

Project: Critical Process Equipment SCADA Monitoring System

Service: Equipment Optimization & MaintenanceService: Equipment Installation & CommissioningService: Preventative & Scheduled MaintenanceIndustry: Automation & ControlsIndustry: Life SciencesType: Automation & Controls+14 more

Advance Engineering & Construction

Stone Mountain, GA

Design. Build. Sustain. Deliver.

Website1 officeUpdated Jun 2026

Service detail: Transportation Engineering

Service: Transportation EngineeringService: Construction Engineering & InspectionsService: Environmental & Wastewater EngineeringIndustry: GovernmentIndustry: FederalType: Civil Engineering+21 more

AdvanceBio LLC

Milford, OH

Biofuels and biochemical industry consultants

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Commercial Bio-Based Process Engineering

Service: Commercial Bio-Based Process EngineeringService: General Project ConsultingService: Technical Due DiligenceIndustry: Biomass & BioenergyType: Owner's Engineer+14 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

Advanced Systems Technology, Inc.

Lawton, OK

Advanced Systems Technology, Inc. (AST) delivers defense engineering and simulation solutions, drawing on over 39 years of experience supporting the Department of Defense. It specializes in Live, Virtual, Constructive, and Gaming (LVC-G) training domains, Command, Control, Communications, Computer, and Intelligence (C4I) systems, and training aids, devices, simulators, and simulations (TADSS).

WebsitePhone2 officesUpdated Jun 2026

Service detail: LVC-G Training Systems Engineering

Service: LVC-G Training Systems EngineeringService: Live, Virtual, and Constructive SimulationService: Gaming and Training ApplicationsIndustry: DefenseIndustry: GovernmentType: Defense Engineering+12 more

Agarabi Engineering PLLC

New York, NY

Energy efficiency engineering and clean energy design for the built environment

WebsitePhone1 office3 projects2 leaders6 credentialsFounded 2014

Project: Domestic Hot Water and Pool Heating Systems Replacement Design

Service: MEP & Enclosure DesignService: Air-Source Heat Pump DesignService: Domestic Hot Water System DesignIndustry: Multifamily ResidentialIndustry: Affordable HousingType: Mechanical Engineering+30 more

Alliance Engineers & Project Consultants

Beaumont, TX

Multidisciplined EPCM

WebsitePhone1 office5 projects1 leadersSize Estimate: 50-200 employeesUpdated Jun 2026

Project: Bringing Ground-Breaking Water-from-Air Technology to Market

Service: Project DevelopmentService: Phased Front-End LoadingService: Front-End Engineering DesignIndustry: Carbon CaptureIndustry: ChemicalsType: Automation & Controls+43 more

Alliant Engineering, Inc.

Alliant Engineering, Inc. Alliant blends project delivery excellence with a passion for innovation, managing projects from inception to completion with national expertise and deep local knowledge. Alliant's diverse team of engineers, landscape architects, planners, construction managers, environmental specialists, and surveyors brings multi-disciplinary collaboration to complex public infrastructure and private development projects.

Website8 leadersFounded 1995Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Transportation Planning & DesignService: Roadway DesignIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+17 more

Altagrove LLC

Herndon, VA

Built for speed. Engineered to deliver.

WebsitePhone3 offices6 projects7 credentialsUpdated Jun 2026

Project: Missile Defense Agency SHIELD IDIQ

Service: CyberService: Cyber Security EngineeringService: Risk Management Framework (RMF) ComplianceIndustry: DefenseIndustry: Intelligence & National SecurityType: Software Engineering+24 more

Anchor Innovation, Inc.

Virginia Beach, VA

From the Waterfront to Operational Edge

WebsitePhone1 office1 credentialsFounded 2002Size Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Direct Operations Support

Service: Direct Operations SupportService: Port OperationsService: Maritime SecurityIndustry: DefenseIndustry: Public SafetyType: Defense Engineering+28 more

Applied Ground Support Technical Services, Inc.

Norman, OK

Aerospace Testing Expertise

WebsitePhone1 office1 projectsFounded 2005Size Estimate: 1-10 employeesUpdated Jun 2026

Project: Model BT1000 Electrical Test Console

Service: AFATS ExpertiseService: Aerospace Fuel and Actuator Test Stand DesignService: Hydraulic and Pneumatic Test System EngineeringIndustry: AerospaceIndustry: DefenseType: Aerospace Engineering+18 more

Aries Aero Systems LLC

Aerospace Product Certification Consultants

WebsiteUpdated Jun 2026

Service detail: FAA Certification and DER Services

Service: FAA Certification and DER ServicesService: Certification Plan DevelopmentService: FAA Liaison ServicesIndustry: AerospaceIndustry: AviationType: Aerospace Engineering+26 more

Ascend Consulting & Engineering PLLC

Houston, TX

Engineering Water Systems Beyond Expectation

WebsitePhone1 office1 leaders1 credentialsFounded 2020Size Estimate: 1-10 employees

Service detail: Project Management

Service: Project ManagementService: Scope and Budget ControlService: Inter-agency CoordinationIndustry: Stormwater & Flood ControlIndustry: WastewaterType: Civil Engineering+34 more

Ascent Design Group

Boston, MA

Aligning Infrastructure with Communities

Website1 officeUpdated Jun 2026

Service detail: Transportation Infrastructure Design

Service: Transportation Infrastructure DesignService: Highway DesignService: Intersection DesignIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+10 more

Astra Solutions LLC

Huntsville, AL

Expert engineering, procurement, and advisory services for defense and commercial clients

WebsitePhone1 office1 leadersFounded 2020Updated Jun 2026

Service detail: Systems Engineering & Technical Assistance (SETA)

Service: Systems Engineering & Technical Assistance (SETA)Service: Systems Integration and EvaluationService: Agency and Advisory SupportIndustry: DefenseIndustry: FederalType: Defense Engineering+29 more

Avelar

Walnut Creek, CA

Collaborative & Innovative

WebsitePhone1 office5 projects6 leaders3 credentialsFounded 1976

Project: Combination of Condominium Units and Single-Family Homes

Service: Forensic and Litigation SupportService: Litigation Expert SupportService: Expert Witness TestimonyIndustry: ResidentialIndustry: Multifamily ResidentialType: Architecture & Engineering+38 more