Public engineering firm directory

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3Bears Technical Services

Hixson, TN

Experts in Nuclear Operations and Waste Management Solutions

WebsitePhone1 office2 credentialsUpdated Jun 2026

Service detail: Engineering and Project Management

Service: Engineering and Project ManagementService: Mechanical EngineeringService: Electrical EngineeringIndustry: NuclearIndustry: Environmental & RemediationType: Environmental Engineering+31 more

Adaptive Management and Engineering, LLC

Baton Rouge, LA

Geotechnical Solutions for a Sustainable Future

WebsitePhone2 offices2 projects3 credentialsFounded 2019Size Estimate: 5-30 employees

Project: Caminada Headland Back Barrier Marsh Creation (BA-171) Project

Service: Site ExplorationService: Geotechnical Drilling, CPT Soundings and Field TestingService: Soil SamplingIndustry: IndustrialIndustry: CommercialType: Coastal Engineering+34 more

Alliance Consulting Engineers, Inc.

Columbia, SC

On Time. On Budget. On Your Side.

WebsitePhone5 offices7 leaders6 credentials2 publicationsFounded 2004

Service detail: Civil Engineering

Service: Civil EngineeringService: Land Planning and Site DesignService: Railway DesignIndustry: IndustrialIndustry: InfrastructureType: Civil Engineering+19 more

Argo Navis Technologies

Together We Succeed

WebsiteUpdated Jun 2026

Service detail: Professional Services

Service: Professional ServicesService: Cybersecurity & ComplianceService: Operations & LogisticsIndustry: AerospaceIndustry: TelecommunicationsType: Software Engineering+29 more

CJSeto Support Services, LLC

Ventura, CA

CJSeto Support Services, LLC is an environmental compliance, safety, information technology, logistics, and workforce training firm headquartered in Ventura, California. Founded in 1999, CJSeto holds ISO 9001:2015 certification and serves federal agencies, educational institutions, healthcare providers, and commercial clients. Its environmental practice covers hazardous waste management, EPA and RCRA compliance, NEPA documentation, spill prevention planning, environmental monitoring and remediation, and asbestos and lead monitoring. Its safety and industrial hygiene practice encompasses OSHA compliance audits, indoor air quality testing, chemical inventory management, respiratory protection, and hazard assessments. Additional service areas include IT infrastructure, cybersecurity and information assurance, logistics and inventory management, and professional training including HAZWOPER, OSHA, and EPA compliance courses. Federal clients include the U.S. Navy, Department of Homeland Security, NASA, and the Veterans Administration.

WebsitePhone1 office1 credentialsFounded 1999Updated Jun 2026

Service detail: Environmental Compliance

Service: Environmental ComplianceService: Hazardous Waste ManagementService: Environmental Monitoring and SamplingIndustry: FederalIndustry: DefenseType: Environmental Engineering+22 more

DECON Environmental, Inc.

Scotts Valley, CA

Professional engineering, environmental assessment, and industrial hygiene services

WebsitePhone1 office11 projects7 credentialsUpdated Jun 2026

Project: Air Discharge Permitting for 300,000-Gallon Per Day Wastewater Treatment Plant

Service: Demolition Environmental ServicesService: Preparation and Presentation of Demolition Environmental PlansService: Demolition PermittingIndustry: Land DevelopmentIndustry: Food & BeverageType: Environmental Engineering+45 more

EAD Corporate

Omaha, NE

Delivering More. Much More.

WebsitePhone5 offices7 projects2 leaders5 credentials2 publications

Project: Production Line Replacement and Bacon Line Upgrade

Service: Engineering & AutomationService: Mechanical & Process EngineeringService: Controls & Automation EngineeringIndustry: Food & BeverageIndustry: Life SciencesType: Mechanical Engineering+17 more

FGC Engineers

Fullerton, CA

Engineering Solutions Built Around Your Project

WebsitePhone1 officeUpdated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: Performance ImprovementsService: Efficiency ImprovementsIndustry: CommercialIndustry: Data CentersType: Architecture & Engineering+48 more

Foresight Engineering, P.C.

Falls Church, VA

Innovation through foresight

WebsitePhone1 office2 projects1 leadersFounded 2006Updated Jun 2026

Project: MRAP JPO Systems Engineering Support

Service: Engineering SupportService: Systems EngineeringService: Modeling and Simulation AnalysisIndustry: DefenseIndustry: GovernmentType: Defense Engineering+12 more

Golden Ratio Management Corporation

Safeguarding the future of aviation security

Website8 leaders1 credentialsFounded 2017Updated Jun 2026

Service detail: TSA Equipment Deployment & Integration

Service: TSA Equipment Deployment & IntegrationService: Checkpoint EquipmentService: Checked Baggage EquipmentIndustry: AviationIndustry: AirportsType: Architecture & Engineering+16 more

IW Laboratories Inc.

Port Hueneme, CA

People Powering Technology

WebsitePhone1 office2 projectsUpdated Jun 2026

Project: Systems Engineering and Digital Transformation for NSWC PHD (Contract D9109-S16)

Service: Systems EngineeringService: Test and EvaluationService: Automatic Test Equipment (ATE) SolutionsIndustry: DefenseIndustry: FederalType: Defense Engineering+26 more

Livingston Engineering

Brighton, MI

Your Blueprint for Success

WebsitePhone1 office2 projects3 credentialsUpdated Jun 2026

Project: GM North-South Straightaway

Service: Civil EngineeringService: Commercial Site DevelopmentService: Earthwork Balance ServicesIndustry: CommercialIndustry: ResidentialType: Civil Engineering+34 more

MLT Systems LLC

Stafford, VA

Serving the professional men and women who are called upon to protect our homeland.

WebsitePhone1 office6 leadersFounded 2008Updated Jun 2026

Service detail: Program & Acquisition Management

Service: Program & Acquisition ManagementService: InitiatingService: PlanningIndustry: DefenseIndustry: GovernmentType: Defense Engineering+52 more

MZI Solutions

MZI Solutions is a Virginia-based systems engineering firm with over 15 years of experience supporting federal agencies and commercial enterprises in deploying mission-critical systems. MZI specializes in leading agencies such as the FAA through the full engineering lifecycle, from requirements development and acquisition navigation to prototype implementation and operational validation. Its Triangle of Value-driven Operationalization blueprint integrates enterprise architecture, systems engineering, and foresight strategy; MZI engineers have enabled customers to deploy 59 full-scale systems to 42 locations nationally while generating $44 million in annual cost savings.

Website1 leadersUpdated Jun 2026

Service detail: Enterprise Architecture and Emerging Technologies

Service: Enterprise Architecture and Emerging TechnologiesService: Systems Engineering and Life-Cycle ManagementService: Systems and Software Life-Cycle ManagementIndustry: AviationIndustry: FederalType: Aviation Engineering+4 more

McGill Associates, PA

Asheville, NC

Shaping Communities Together

WebsitePhone8 offices9 projects1 leaders3 credentialsFounded 1984

Project: Mission Tower North

Service: Water & WastewaterService: Water Source and TreatmentService: Water DistributionIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+74 more

Peptineo LLC

Albuquerque, NM

Delivering value recovery through Program Management and Engineering.

WebsitePhone2 officesFounded 2011Updated Jun 2026

Service detail: Program Management

Service: Program ManagementService: Statement of Work FormulationService: Cost Research and EstimatingIndustry: AerospaceIndustry: DefenseType: Aerospace Engineering+25 more

SERES Engineering & Services, LLC

Charleston, SC

Committed to Excellence

WebsitePhone1 office8 projects1 leaders7 credentialsFounded 2007

Project: Environmental Services and Remedial Action Operations for BRAC Legacy Sites - Former Fort Devens

Service: Operational Facility SupportService: Pollution PreventionService: Engineering Technical SupportIndustry: Environmental & RemediationIndustry: GovernmentType: Environmental Engineering+42 more

SKS Engineers, LLC

Decatur, IL

SKS Engineers, LLC is a multidisciplinary engineering firm based in Decatur, Illinois, serving Central Illinois and surrounding areas for over 50 years. SKS provides civil engineering, geotechnical engineering, structural engineering, mechanical/electrical/plumbing engineering, land surveying, soils and materials testing, subsurface investigations, and construction quality control through a partnership of licensed professional engineers and qualified technicians. A sister entity, Land Engineers, LLC, operates from Bloomington, Illinois.

WebsitePhone2 offices9 projectsUpdated Jun 2026

Project: Millikin University Theater & Dance Building

Service: Civil Engineering and Land DevelopmentService: Grading plans and drainage studies, hydrologic and hydraulic analysisService: Pavement design and streets and highwaysIndustry: EducationIndustry: IndustrialType: Civil Engineering+37 more

Southern Earth Sciences, Inc.

Baton Rouge, LA

Building Strong Foundations Across the Southeast

Website12 offices17 projectsUpdated Jun 2026

Project: Tyndall AFB Zone 8 Emergency Operations Center

Service: Geotechnical ServicesService: Field TestingService: Cone Penetration Testing (CPT)Industry: DefenseIndustry: FederalType: Geotechnical Engineering+130 more

SunStone Technical Group, LLC

SunStone Technical Group, LLC is a technical services company providing systems engineering and design, rapid prototyping and fabrication, marine maintenance and repair, integrated logistics support, hardware and software design, IT services, data analytics, model-based systems engineering, and operations support for defense, government, and commercial customers. Its engineers and technicians support structural, mechanical, electrical, C5ISR, marine, network, and secured systems work.

WebsiteUpdated Jun 2026

Service detail: Systems Engineering and Design

Service: Systems Engineering and DesignService: Requirements and Feasibility StudiesService: Modeling and SimulationIndustry: DefenseIndustry: MarineType: Defense Engineering+23 more

Tridentis, LLC

Alexandria, VA

The Next Generation Ship Design and Engineering Firm

WebsitePhone4 offices3 projects1 leaders1 credentialsSize Estimate: 10-50 employees

Project: Georgetown Heritage Canal Boat

Service: Ship Design and EngineeringService: Concept Design and Trade StudiesService: Preliminary Vessel DesignIndustry: DefenseIndustry: FederalType: Electrical Engineering+48 more