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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exp Federal Inc.

Chicago, IL

Architecture + Engineering | Construction | Mission Support

Website5 offices9 projects1 credentialsFounded 2012Size Estimate: 250-500 employeesUpdated Jun 2026

Project: Fish Dispersal Barrier

Service: ArchitectureService: Master PlanningService: Facilities ProgrammingIndustry: DefenseIndustry: FederalType: Architecture & Engineering+45 more

i3NGINEERING, Inc.

Honolulu, HI

Inspiration + Integrity + Innovation

WebsitePhone1 office4 projects4 leaders1 credentialsSize Estimate: 1-9 employees

Project: Adventist Health Castle Surgery & Imaging

Service: Structural Design and AnalysisService: Building Structural DesignService: Bridge and Highway StructuresIndustry: ResidentialIndustry: CommercialType: Structural Engineering+18 more

iAssociates

Alameda, CA

San Francisco Bay Area Structural Engineers

Website1 office1 leadersFounded 2005Size Estimate: 1-9 employeesUpdated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Structural Design for New ConstructionService: Structural Renovation and RetrofittingIndustry: ResidentialIndustry: CommercialType: Structural Engineering+3 more

iCivil Inc.

Timonium, MD

Innovative Civil Solutions

WebsitePhone1 office4 projectsFounded 2008Size Estimate: 32 employeesUpdated Jun 2026

Project: Baltimore District Court Conversion Project

Service: Civil EngineeringService: Construction ManagementService: Claims Analysis and SchedulingIndustry: InfrastructureIndustry: GovernmentType: Civil Engineering+19 more

iDesign Engineering Inc.

Beltsville, MD

Knowledge. Dedication. Reliability.

WebsitePhone2 offices24 projects11 leadersFounded 2012Size Estimate: 10-20 employees

Project: I-95 Section 200 Widening

Service: Water Resources EngineeringService: Low-Impact Development and ESDService: Hydrologic and Hydraulic ModelingIndustry: Highways & RoadsIndustry: TransportationType: Civil Engineering+33 more

iGET Services LLC

Houston, TX

With Professional Excellence!

WebsitePhone1 office8 credentialsSize Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Buildings and Facilities Design

Service: Buildings and Facilities DesignService: Disaster Resistant Home DesignService: Windstorm EngineeringIndustry: GovernmentIndustry: CommercialType: Architecture & Engineering+25 more

infraTECH Engineers & Innovators, LLC

Houston, TX

Designing Infrastructure, Redefining Horizons

WebsitePhone2 offices6 projects1 credentialsSize Estimate: 10-49 employeesUpdated Jun 2026

Project: US 75 Roadway Widening and Reconstruction

Service: Roadway & CivilService: Roadway Schematic DevelopmentService: Roadway and Interchange DesignIndustry: Highways & RoadsIndustry: BridgesType: Civil Engineering+34 more

iroquoiSystems, Inc.

Huntsville, AL

Creating innovative technologies today for the business environments of tomorrow.

Website1 officeUpdated Jun 2026

Service detail: Commercial Software Development

Service: Commercial Software DevelopmentIndustry: GovernmentIndustry: DefenseType: Software Engineering+1 more

kw systems LLC

kw systems LLC provides engineering services specializing in technology systems design, build, and construction administration. It delivers integrated solutions for network infrastructure, security, audio-visual, and smart building automation systems.

WebsiteUpdated Jun 2026

Service detail: Technology Systems Design

Service: Technology Systems DesignService: Network InfrastructureService: Security SystemsIndustry: CommercialIndustry: Automation & ControlsType: Electrical Engineering+6 more

ms consultants, inc.

Engineers, Architects, Planners

Website6 projects4 credentialsUpdated Jun 2026

Project: Big Walnut Fire Station

Service: Transportation EngineeringService: Roadway and traffic designService: TrafficIndustry: TransportationIndustry: Highways & RoadsType: Architecture & Engineering+38 more

nStone Corporation

Albuquerque, NM

Innovative Engineering Solutions & Project Management

WebsitePhone1 office3 leaders1 credentialsFounded 2010Size Estimate: 50-100 employees

Service detail: Operations & Facility Management

Service: Operations & Facility ManagementService: Strategic decision analysisService: Life cycle asset managementIndustry: GovernmentIndustry: NuclearType: Environmental Engineering+47 more

onBoresight Research LLC

Lihue, HI

onBoresight Research LLC is an engineering services organization headquartered in Lihue, Hawaii, providing systems engineering, cybersecurity, hardware modernization, and software development for government test ranges and forward-deployed defense assets. Its technical staff includes electrical, mechanical, and civil engineers, as well as architects with expertise in radar systems, RMF cybersecurity accreditation, FPGA integration, and model-based systems engineering. The organization supports mission planning, operations and maintenance, system performance evaluation, and radar operator training specific to MIT Lincoln Laboratory ROSA and WB-COSIP radar systems.

WebsitePhone1 officeSize Estimate: 1-5 employeesUpdated Jun 2026

Service detail: RMF Cybersecurity

Service: RMF CybersecurityService: System Architecture RestructuringService: Vulnerability Scanning & HardeningIndustry: GovernmentIndustry: FederalType: Defense Engineering+30 more

saam architecture, LLC

Boston, MA

A progressive approach to the practice of architecture.

WebsitePhone4 offices8 projects9 leadersUpdated Jun 2026

Project: Hanscom Airfield Rescue and Fire Fighting Facility

Service: Aviation Facility ArchitectureService: Terminal Design and RenovationService: Airfield Support FacilitiesIndustry: AviationIndustry: DefenseType: Architecture & Engineering+23 more

tQ Automation, LLC

Houston, TX

Field service engineering, control systems, and digital oilfield solutions

WebsitePhone1 office3 projects2 leadersUpdated Jun 2026

Project: Global Oil Services Company - MWD/LWD Product Development

Service: Engineering ConsultingService: Control System DesignService: Embedded System Design and DevelopmentIndustry: Oil & GasIndustry: Renewable EnergyType: Automation & Controls+18 more

thyssenkrupp nucera

Dortmund, TX

We Shape the New Era

WebsitePhone10 offices3 projectsSize Estimate: 900-1,200 employeesUpdated Jun 2026

Project: Southern Europe's Largest Green Hydrogen Project (Moeve)

Service: Alkaline Water Electrolysis (Green Hydrogen)Service: Electrolyzer Engineering and SupplyService: FEED and Feasibility StudiesIndustry: Renewable EnergyIndustry: ChemicalsType: EPC+18 more

vigilant.engineering

Seattle, WA

Many engineering firms build hardware. We build operational impact.

Website1 office2 leadersFounded 2025Updated Jun 2026

Service detail: Concept & Architecture Development

Service: Concept & Architecture DevelopmentService: Concept DevelopmentService: Architecture DevelopmentIndustry: DefenseIndustry: Intelligence & National SecurityType: Electrical Engineering+32 more