Public engineering firm directory

Find engineering consulting firms by capability and location.

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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

ACSYeS Inc

Aberdeen Proving Ground, MD

Scientific and engineering consulting services for aerospace, defense, and commercial applications.

WebsitePhone2 officesUpdated Jun 2026

Service detail: Systems Engineering

Service: Systems EngineeringService: Architecture DevelopmentService: Requirements EngineeringIndustry: AerospaceIndustry: CommercialType: Defense Engineering+23 more

ADDX Corporation

Alexandria, VA

Tenacious by Nature

WebsitePhone1 officeUpdated Jun 2026

Service detail: Engineering Readiness and Lifecycle Support

Service: Engineering Readiness and Lifecycle SupportService: Digital Engineering LaunchpadService: Engineering Readiness ReviewsIndustry: DefenseIndustry: GovernmentType: Defense Engineering+23 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

AESUS Design Group, LLC

Tempe, AZ

Integrated Architecture & Engineering

WebsitePhone3 offices12 projects2 leaders1 credentialsFounded 2014

Project: 5th Floor Med-Surg Inpatient Wing Gut & Remodel

Service: ArchitectureService: Architectural Concept DesignService: Design Development DocumentationIndustry: HealthcareIndustry: FederalType: Architecture & Engineering+48 more

AMERICAN SYSTEMS Corporation

McLean, VA

Leaders by Performance.

WebsitePhone3 offices6 leaders15 credentialsFounded 1975Updated Jun 2026

Service detail: Engineering and Analysis

Service: Engineering and AnalysisService: Aerospace EngineeringService: Defense Systems AnalysisIndustry: DefenseIndustry: FederalType: Defense Engineering+12 more

AMI Aero, LLC

Renton, WA

An Aerodynamics Legacy Since 1971

WebsitePhone1 office3 projectsFounded 1971Updated Jun 2026

Project: Sino-Swearingen SJ30

Service: Aerodynamic EngineeringService: Aircraft Design & ConfigurationService: Airfoil & Shape DesignIndustry: AerospaceIndustry: AviationType: Aerospace Engineering+28 more

ASG Solutions Corporation

San Diego, CA

ASG Solutions Corporation is a San Diego-based professional services provider supporting critical federal and military missions globally. It specializes in delivering tailored solutions across engineering, construction management, environmental services, information technology, and defense logistics.

WebsitePhone1 office10 projects1 leadersFounded 2005Updated Jun 2026

Project: Technical Support Services for NAVFAC SE DCBL/DC 4

Service: Engineering ServicesService: Electrical EngineeringService: Engineering TechniciansIndustry: DefenseIndustry: FederalType: Defense Engineering+23 more

AVIAN

Lexington Park, MD

We empower our people to do good and help others with simple solutions.

Website8 offices3 leaders1 credentialsUpdated Jun 2026

Service detail: Test & Evaluation

Service: Test & EvaluationService: Test Program ManagementService: UAS Test FlightIndustry: DefenseIndustry: AerospaceType: Aerospace Engineering+16 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

Abraxas Energy Consulting

Energy Efficiency & Building Energy Audits

Website5 projects1 credentials2 publicationsUpdated Jun 2026

Project: FBI Headquarters Energy Audit

Service: Energy ConsultingService: Commercial Energy AuditsService: Retro-CommissioningIndustry: CommercialIndustry: FederalType: Mechanical Engineering+27 more

AccelaBlue Advisory Group

The Advisor Who Sees the Whole Deal

Website3 projects1 leaders2 credentialsUpdated Jun 2026

Project: 340 MW Hyperscale Data Center & AI Factory

Service: Technical Feasibility & Site AssessmentService: Site & Grid CharacterizationService: Resource AssessmentIndustry: Data CentersIndustry: NuclearType: Owner's Engineer+38 more

Ad hoc Research Associates LLC

Belcamp, MD

AI You Can Trust When Failure Isn't an Option

Website2 offices6 projectsUpdated Jun 2026

Project: Adaptive Cyber Range Control for White Cell Operations

Service: Digital Twin OperationsService: Mission & Network Digital TwinsService: Mixed-Fidelity EnvironmentsIndustry: DefenseIndustry: TelecommunicationsType: Software Engineering+15 more

Adalta Engineering Group, LLC

El Paso, TX

Designing critical infrastructure that supports life.

WebsitePhone1 office1 leaders1 credentialsFounded 2009Updated Jun 2026

Service detail: Mechanical Systems Design

Service: Mechanical Systems DesignService: HVAC DesignService: Plumbing System DesignIndustry: InfrastructureIndustry: CommercialType: Mechanical Engineering+13 more

Advanced Automation Corporation

Rome, NY

Confidence in the Future: Emerging Technologies to Support the Warfighter

WebsitePhone1 office3 projects6 leaders3 credentialsSize Estimate: 25-50 employees

Project: Integrated Electronic Data Environment (IEDE) for Plutonium Processing Facility

Service: Systems EngineeringService: Requirements Definition and ManagementService: Conceptual and Preliminary DesignIndustry: AerospaceIndustry: DefenseType: Defense Engineering+30 more

Advanced Engineering Consultants

Columbus, OH

Advanced Engineering Consultants specializes in providing mechanical, electrical, plumbing, fire protection, technology, and utilities engineering design and construction administration services for the built environment. Established in 1998, the practice works collaboratively with owners, architects, and contractors across the Midwest, the nation, and globally. It has completed nearly 2,000 projects across diverse sectors including government, healthcare, education, and commercial markets.

WebsitePhone4 offices6 projects7 leaders14 credentialsFounded 1998

Project: Columbus Division of Police Crime Laboratory Renovation

Service: Mechanical EngineeringService: HVAC Design and UpgradesService: Electrical EngineeringIndustry: FederalIndustry: GovernmentType: MEP+23 more

Advanced Simulation Technology, Inc.

Aston, PA

Creatively combining classic and emerging engineering technologies

WebsitePhone1 officeUpdated Jun 2026

Service detail: Product Design

Service: Product DesignService: Computer-Aided Design (CAD)Service: Finite Element Analysis (FEA)Industry: GovernmentIndustry: DefenseType: Mechanical Engineering+20 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

AeroShield Consulting

Tucson, AZ

Expert Counter-UAS Consulting Services

WebsitePhone1 office1 leaders1 credentialsUpdated Jun 2026

Service detail: Threat Assessment & Risk Analysis

Service: Threat Assessment & Risk AnalysisService: Technology Evaluation & ProcurementService: System Selection & IntegrationIndustry: GovernmentIndustry: DefenseType: Defense Engineering+18 more

AlfaTech

Harmonizing Relationships, Sustainability and Innovation

Website10 projects13 leadersUpdated Jun 2026

Project: The Lucas Museum of Narrative Art

Service: MEP EngineeringService: Mechanical Engineering DesignService: Electrical Engineering DesignIndustry: CommercialIndustry: RetailType: MEP+65 more

Alico Systems, Inc.

San Diego, CA

Alico Systems is an innovative product development practice that designs solutions for consumer, industrial, government, and military markets. Its expertise spans mobile wireless computing platforms for image, voice, video, and data communications, alongside phased array beam steered antennas, RF transceivers, microprocessor and FPGA electronics, and wireless sensor networks for remote monitoring and control. Key systems include mobile satellite communications terminals, VoIP PBX systems, broadband wireless networks, and motion sensor platforms.

WebsitePhone1 office1 projects2 credentialsUpdated Jun 2026

Project: SAXBA Distributed Broadband SATCOM On-The-Move Terminal

Service: Systems EngineeringService: Communications and Network EngineeringService: Systems Integration of Mobile Wireless and Satellite NetworksIndustry: DefenseIndustry: GovernmentType: Electrical Engineering+26 more

Allen Consulting Inc.

Norman, OK

Partner with Leaders in MEP Engineering

WebsitePhone1 office6 projects3 leaders1 credentialsFounded 1979

Project: Francis Tuttle - New Danforth Campus

Service: Mechanical EngineeringService: HVAC DesignService: Central Plant DesignIndustry: EducationIndustry: HealthcareType: MEP+19 more

Allgeier, Martin and Associates, Inc.

Joplin, MO

It's not just business...it's personal.

WebsitePhone6 offices17 projects20 leaders39 credentialsFounded 1954

Project: Route 66 Bridge

Service: Civil EngineeringService: BridgesService: IntersectionsIndustry: GovernmentIndustry: WastewaterType: Civil Engineering+33 more

Allpro Consulting Group, Inc.

Dallas, TX

Allpro Consulting Group, Inc. is a consulting engineering practice specializing in structural engineering, civil engineering, and architectural design services. Holding professional engineering licenses covering all 50 U.S. states and Puerto Rico, it focuses on wireless communication infrastructure development and cellular site deployment. The practice supports cellular carriers, tower management companies, site acquisition firms, tower owners, and government agencies with services including structural tower analysis, civil layout design, and site acquisition.

WebsitePhone2 officesUpdated Jun 2026

Service detail: Structural Engineering Services

Service: Structural Engineering ServicesService: Tower Structural AnalysisService: Tower Inspections and MappingIndustry: TelecommunicationsIndustry: GovernmentType: Civil Engineering+27 more