Public engineering firm directory

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Zephyr Engineering, Inc.

Specialists in Custom Designs

Website2 projects1 credentialsUpdated Jun 2026

Project: IQ2 SDR Transceiver Development

Service: FPGA Design ServicesService: FPGA Firmware DesignService: SoC Software DevelopmentIndustry: ElectronicsIndustry: SemiconductorsType: Electrical Engineering+13 more

Zest LLC

Greenbelt, MD

Expert Management, Quality Design and Consulting Services.

WebsitePhone2 offices1 projects1 credentialsUpdated Jun 2026

Project: Purple Line Transit Project

Service: Storm Water ManagementService: TMDL Compliance AuditingService: LID and ESD RetrofitIndustry: Stormwater & Flood ControlIndustry: GovernmentType: Civil Engineering+60 more

Zeta Performance Vehicle Technologies LLC

Cornelius, NC

FAST track your Development Process

WebsitePhone1 officeUpdated Jun 2026

Service detail: Vehicle Dynamics Testing & Development

Service: Vehicle Dynamics Testing & DevelopmentService: 4-Post and 7-Post Shaker Rig TestingService: At-Track Vehicle TestingIndustry: AutomotiveType: Mechanical Engineering+4 more

Zeus Engineering, LLC

Chesapeake, VA

Minimal, modern engineering for complex missions.

Website1 officeUpdated Jun 2026

Service detail: Systems Integration

Service: Systems IntegrationService: Model-Based Systems EngineeringService: Interface Control and Configuration ManagementIndustry: DefenseIndustry: FederalType: Defense Engineering+8 more

Zeus Research And Technology Inc

Huntsville, AL

A transition-focused approach to assured navigation solutions

Website1 office3 projects2 credentialsFounded 2018Updated Jun 2026

Project: SBIR Phase II - US Army

Service: Assured Position Navigation and Timing (APNT) SystemsService: Custom APNT SolutionsService: M-Code Integration and TestingIndustry: DefenseIndustry: AerospaceType: Defense Engineering+5 more

Zilitivity Inc.

Software engineering and IT services

Website4 projects1 leaders4 credentialsSize Estimate: 11-50 employeesUpdated Jun 2026

Project: COLUMBIA and VIRGINIA Class Nuclear Submarine Ship Control Systems

Service: Software Engineering ConsultingService: Requirements Analysis and PlanningService: System Architecture and DesignIndustry: DefenseIndustry: FederalType: Software Engineering+19 more

Zona Technical Engineering, PLLC

Tucson, AZ

Zona Technical Engineering, PLLC is a full-service MEP consulting engineering firm headquartered in Tucson, Arizona. Founded in 2022 by Principal Mechanical Engineer Dave Tyrrell and Principal Electrical Engineer Alec Zimmermann, it provides in-depth Mechanical, Electrical, and Plumbing design services for commercial new construction and renovation projects across Arizona and the Southwest. Services include HVAC and plumbing systems design, electrical design, arc flash studies, fire protection system design criteria, and construction administration, all produced in-house using Revit and BIM. It has served healthcare facilities, university campus buildings, government courthouses, research laboratories, manufacturing facilities, hospitality venues, and mixed-use residential projects throughout the Tucson metropolitan area.

WebsitePhone1 office5 projects2 leaders2 credentialsFounded 2022

Project: UA Global Center, Phase 2

Service: MEP Engineering DesignService: HVAC and Plumbing Systems DesignService: Electrical DesignIndustry: HealthcareIndustry: EducationType: MEP+11 more

Zuhowski Engineering, LLC

Arnold, MD

Zuhowski Engineering is a Maryland-based engineering firm providing multi-disciplined expertise across engineering design, construction, and operation. Operating throughout the Mid-Atlantic region, it serves building owners and managers, contractors, manufacturers, and homeowners with the ability to assess problems and implement solutions quickly and economically.

WebsitePhone1 office1 credentialsUpdated Jun 2026

Service detail: Piping Design

Service: Piping DesignService: Skid Mounted EquipmentService: Tanks and Pressure VesselsIndustry: AerospaceIndustry: DefenseType: MEP+23 more

Zyno Engineering

Precision for the work that matters. Funded by the waste we eliminate.

Website11 projectsUpdated Jun 2026

Project: PRISM S&T Mapping Platform

Service: AI Systems EngineeringService: System ArchitectureService: Model SelectionIndustry: DefenseIndustry: GovernmentType: Software Engineering+30 more

ads ENGINEERS, DPC

New York, NY

Mechanical, Electrical, Plumbing, and Fire Protection Engineering

WebsitePhone1 office6 projects3 leaders3 credentialsFounded 1979

Project: Asian Cultural Center

Service: HVAC EngineeringService: Electrical EngineeringService: Electrical Power DistributionIndustry: CommercialIndustry: RetailType: MEP+27 more

aeSolutions

Engineering smarter, safer operations.

Website7 projects2 credentials5 publicationsFounded 2012Updated Jun 2026

Project: Heater Controls Upgrade for Arctic Pipeline Pump Stations

Service: Process Safety Management (PSM)Service: Process Hazard Analysis (PHA)Service: PSM/RMP AuditsIndustry: ChemicalsIndustry: Oil & GasType: Process Safety Engineering+39 more

apex rocket science, llc

Strategic Solutions for Your Aerospace & Defense Challenges

Website2 credentials3 publicationsUpdated Jun 2026

Service detail: Enterprise Risk Management

Service: Enterprise Risk ManagementService: Portfolio and Program Risk ManagementService: Operations and Supply Chain Risk ManagementIndustry: DefenseIndustry: FederalType: Aerospace Engineering+33 more

avacal, Inc.

Huntsville, AL

Cybersecurity and Engineering Services

Website1 office1 leadersUpdated Jun 2026

Service detail: Cybersecurity

Service: CybersecurityService: Systems Design and IntegrationService: Network DesignIndustry: DefenseIndustry: GovernmentType: Defense Engineering+3 more

cGMP Consulting Inc.

Lake Forest, IL

Your cGMP Compliance and Engineering Partner

WebsitePhone1 office1 projects1 credentialsFounded 2001Size Estimate: 75-100 employees

Project: Pharmaceutical Facility Expansion

Service: Commissioning, Qualification, and Validation (CQV)Service: CommissioningService: Facilities, Utilities, and Equipment QualificationIndustry: Consumer ProductsIndustry: Food & BeverageType: Automation & Controls+25 more

dbHMS

Chicago, IL

Impact Through Engineering

Website7 offices2 projects1 leadersFounded 2002Updated Jun 2026

Project: The Keller Center, The University of Chicago

Service: Mechanical, Electrical, Plumbing & Fire Protection DesignService: Engineered HVAC SystemsService: Engineered Electrical SystemsIndustry: EducationIndustry: GovernmentType: MEP+45 more

de Bruin Engineering, P.C.

Westbury, NY

de Bruin Engineering, P.C. is a full-service civil engineering firm established in June 2006 and headquartered in Westbury, New York. Successor to A. James de Bruin & Sons, LLP (established 1996) and A. James de Bruin, Sole Proprietor (established 1964), it carries over 50 years of combined history serving private and public clients throughout the New York metropolitan area. The 17-person staff includes 4 Licensed Professional Engineers and 1 Registered Architect. Practice areas span civil design, project management, and construction management with deep experience in roads, drainage systems, stormwater treatment, site design, recreational facilities, and wastewater plant improvements.

WebsitePhone1 office15 projects1 leadersFounded 2006Size Estimate: 17 employees

Project: USTA National Tennis Center

Service: Civil EngineeringService: Site Design & GradingService: Drainage Systems & Stormwater ManagementIndustry: GovernmentIndustry: WastewaterType: Civil Engineering+23 more

deciBel Research

Huntsville, AL

Making Systems and Their Sensors Smarter

Website5 offices1 projectsFounded 2002Updated Jun 2026

Project: Missile Defense Agency Modeling and Simulation Contract for Truth Models and Element Representations (MASC-T)

Service: Modeling, Simulation, and AnalysisService: Digital and Hardware-in-the-Loop TestingService: Simulation Tool DevelopmentIndustry: DefenseIndustry: Intelligence & National SecurityType: Defense Engineering+16 more

e.Construct USA, LLC

Omaha, NE

Exceptional Design, Outstanding Service

WebsitePhone2 offices18 projects8 leaders1 credentials1 publications

Project: Delmar Gardens Parking Ramp

Service: Building Structural EngineeringService: Structural AnalysisService: Structural DesignIndustry: BridgesIndustry: CommercialType: Structural Engineering+11 more

e2 engineers

New London, CT

Practical Engineering Solutions From Different Angles

WebsitePhone2 offices8 projects5 leadersFounded 2002Size Estimate: 11-50 employees

Project: New Canaan Library

Service: Structural Assessment and FeasibilityService: Load Ratings & Condition AssessmentsService: Feasibility Studies & Code ReviewsIndustry: Arts & CultureIndustry: GovernmentType: Structural Engineering+21 more

eBeam, Inc.

Consulting and design services for the vacuum electron device industry

Website5 projectsFounded 1985Updated Jun 2026

Project: High Power Microwave Window

Service: Vacuum Electron Device EngineeringService: Electron Tube DesignService: Vacuum Tube DesignIndustry: DefenseIndustry: SpaceType: Electrical Engineering+19 more

eDesign Dynamics

eDESIGN DYNAMICS is an environmental engineering and planning firm specializing in Water Resources Modeling, Planning, and Design; Ecosystem Design and Analysis; Green Stormwater Infrastructure; International Development; and Resilience Planning and Design.

Website23 leadersFounded 2002Updated Jun 2026

Service detail: Water Resources Engineering

Service: Water Resources EngineeringService: Water Resources Modeling, Planning, and DesignService: Green Stormwater Infrastructure Design, Monitoring, and Construction ManagementIndustry: Water ResourcesIndustry: Stormwater & Flood ControlType: Environmental Engineering+9 more

eScience & Technology Solutions, Inc.

Landover, MD

eScience & Technology Solutions, Inc. (eSTS) engineers and delivers technology services to Department of Defense and federal agency clients. Its staff integrates systems engineering, software development, cyber support, and program management across defense domains including C4ISR, short- and long-range radar, air traffic control, naval command platforms, and Navy manpower and personnel systems. eSTS holds a $300M IDIQ award from the Space and Naval Warfare Systems Command Sea Warrior Program Office for software development, modernization, and sustainment.

WebsitePhone2 officesUpdated Jun 2026

Service detail: Systems Engineering

Service: Systems EngineeringService: Requirements Engineering and AnalysisService: Architecture Design and SynthesisIndustry: DefenseIndustry: FederalType: Defense Engineering+10 more

eTribeca LLC

New York, NY

The Wi-Fi Site Survey and Design Expert

WebsitePhone1 office2 credentialsUpdated Jun 2026

Service detail: Wireless Site Survey

Service: Wireless Site SurveyService: RF AnalysisService: Wireless Network DesignIndustry: ManufacturingIndustry: RetailType: Telecom / RF Engineering+16 more

electromenia industries

Empower Your Future with Innovative Electrical Solutions

WebsiteUpdated Jun 2026

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Circuit DesignService: Power Systems EngineeringIndustry: Renewable EnergyIndustry: Automation & ControlsType: Electrical Engineering+3 more