Public engineering firm directory

Find engineering consulting firms by capability and location.

Search engineering firm profiles built for buyers who need a shortlist, not a sales pitch.

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154 Tech LLC

Santa Barbara, CA

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

WebsitePhone1 office2 credentials
Service: Technical Program ManagementService: End-to-End Program ManagementIndustry: DefenseType: Defense Engineering+30 more

28 Gorilla Engineering

Chandler, AZ

Ruggedized product engineering for the field and the future.

WebsitePhone1 office8 projects
Service: Mechanical Engineering DesignService: Assembly-aware mechanical designIndustry: DefenseType: Defense Engineering+51 more

3D Design & Engineering

Houston, TX

Innovation, Integrity & Quality - All of your A&E, Surveying and Utility Locating needs under one roof.

WebsitePhone1 office4 projects
Service: A&E ServicesService: Site Feasibility StudiesIndustry: Oil & GasType: Architecture & Engineering+32 more

5FOLD Engineering

Seminole, FL

Precision Unfolded. Mission Ready.

WebsitePhone1 office2 projects
Service: Design EngineeringService: Design for Manufacturing & SustainabilityIndustry: DefenseType: Mechanical Engineering+34 more

7NT Enterprises, LLC

Miamisburg, OH

Proper Execution with Precision

WebsitePhone1 office9 projects
Service: Drilling ServicesService: Rock Coring and Soil SamplingIndustry: WastewaterType: Geotechnical Engineering+21 more

A & M Engineering and Environmental Services, Inc.

Tulsa, OK

Providing Quality Services for Over 30 Years

WebsitePhone4 offices5 projects
Service: Construction & Remediation ServicesService: Landfill ConstructionIndustry: Environmental & RemediationType: Environmental Engineering+74 more

A.M. Engineering

Elko, NV

Civil Engineering, Surveying, and Project Management Services in Nevada

WebsitePhone2 offices1 projects
Service: Civil EngineeringService: Streets and Highway DesignIndustry: GovernmentType: Civil Engineering+47 more

ABAM Engineers Inc.

Houston, TX

Driving Innovation and Digitization in Engineering

WebsitePhone2 officesUpdated Jun 2026
Service: Civil and Infrastructure EngineeringService: Site Analysis and DesignIndustry: CommercialType: Civil Engineering+40 more

AEPC Group, LLC

Santa Clarita, CA

We build confidence

WebsitePhone1 office1 projects
Service: ArchitectureService: Schematic and Conceptual Design DevelopmentIndustry: AerospaceType: Architecture & Engineering+42 more

AFORGE LLC

Lorton, VA

Accelerating the Speed of Knowledge to Support National Security

WebsitePhone3 offices6 credentials
Service: Strategy, Advisory, & ConsultingService: Strategic & Operational PlanningIndustry: DefenseType: Defense Engineering+30 more

AGRA Industries, Inc.

Merrill, WI

Design-build general contractor, steel fabricator, and equipment manufacturer for industrial agricultural facilities.

WebsitePhone1 office1 credentials
Service: Design and EngineeringService: EPCM and Design-Build DeliveryIndustry: AgricultureType: Industrial Engineering+24 more

ANS

Scotch Plains, NJ

Engineering with integrity & purpose.

WebsitePhone1 office7 projects
Service: Civil, Site & Land DevelopmentService: Site Development & PermittingIndustry: Renewable EnergyType: Civil Engineering+59 more

ARC Defense

Contract engineering, consulting, and manufacturing for military and government sectors

Website2 leadersUpdated Jun 2026
Service: ManufacturingService: Component AssemblyIndustry: DefenseType: Defense Engineering+20 more

ATSI, Inc.

Amherst, NY

Changing the World Since 1977

WebsitePhone1 officeFounded 1977
Service: Front-End Engineering & Design (FEED)Service: FEL-1: Conceptual Engineering & FeasibilityIndustry: Renewable EnergyType: Process Engineering+41 more

AVT Simulation

Orlando, FL

Improving Readiness Through Training

WebsitePhone1 office4 projects
Service: Flight Simulator DevelopmentService: Rotary Wing TrainersIndustry: DefenseType: Defense Engineering+48 more

Abonmarche Consultants, Inc.

Many Disciplines One Team

Website2 projects10 credentials2 publications
Service: Civil EngineeringService: Stormwater ManagementIndustry: GovernmentType: Architecture & Engineering+59 more

Ackerman-Estvold Engineering & Management Consulting, Inc.

Minot, ND

architects + engineers

WebsitePhone4 offices3 projects
Service: Civil EngineeringService: Traffic & Transportation EngineeringIndustry: GovernmentType: Civil Engineering+45 more

Action Engineering, LLC

Lakewood, CO

Model-Based Enterprise Experts

Website1 office1 leaders8 credentials
Service: 3D Digital Transformation StrategyService: 3D Transformation Readiness AssessmentsIndustry: ManufacturingType: Industrial Engineering+24 more

Aegis

Silver Spring, MD

Keeping Construction Projects on Track

WebsitePhone8 offices5 projects
Service: Planning & SchedulingService: CPM Schedule DevelopmentIndustry: InfrastructureType: Owner's Engineer+31 more

Aerospace Structural Research Corp

Milford, CT

Transforming Ideas into Reality with Engineering Expertise

WebsitePhone1 officeFounded 1995
Service: Engineering Design ServicesService: Computer-Aided Design (CAD)Industry: AerospaceType: Aerospace Engineering+47 more

Airwai Inc.

Gardena, CA

The autonomous civil engineer for critical infrastructure

Website1 office1 projectsUpdated Jun 2026
Service: LAIRA Pavement and Asset InspectionService: Pavement Condition DeliverablesIndustry: AirportsType: Civil Engineering+20 more

Ally General Solutions, LLC

Houston, TX

Building now for tomorrow

Website1 office8 projects7 leaders
Service: Civil EngineeringService: Highways and Airports EngineeringIndustry: TransportationType: Civil Engineering+33 more

Alpha Geotechnical & Materials, Inc.

Tempe, AZ

Alpha Geotechnical & Materials, Inc. is a Tempe, Arizona-based consulting practice founded in 1998, specializing in geotechnical and environmental engineering, geological services, construction inspections, and materials testing. It serves public and private clients on projects ranging from single commercial pads to large master-planned communities across the Phoenix metro area, delivering timely, accurate, and cost-effective field and laboratory testing.

WebsitePhone1 office18 projects
Service: Geotechnical EngineeringService: Subsurface Site InvestigationIndustry: CommercialType: Geotechnical Engineering+94 more

Alphasite Inc

Woodstock, IL

Making the automation & packaging world a better place.

Website1 officeUpdated Jun 2026
Service: Project ManagementService: Line Integration and OptimizationIndustry: Automation & ControlsType: Automation & Controls+12 more