Public engineering firm directory

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Caird Sextant, LLC

Annandale, VA

From the Poles to the Tropics - and Everywhere in Between

WebsitePhone1 office5 projects2 publicationsFounded 2013Size Estimate: 1-9 employees

Project: LCS Full Ship Shock Trial - Environmental Mitigation

Service: Research and Development SupportService: Ocean Science ResearchService: Energy Technology EvaluationIndustry: DefenseIndustry: GovernmentType: Environmental Engineering+19 more

Custom Silicon Solutions, Inc.

Irvine, CA

Empowering Success Through Custom ASICs

WebsitePhone1 office7 projectsFounded 1996Updated Jun 2026

Project: 6-Axis Inertial Motion Unit (MEMS Gyroscope)

Service: Turnkey ASIC DevelopmentService: High-Voltage IC DesignService: Sensors and MEMS InterfacingIndustry: IndustrialIndustry: Medical DevicesType: Electrical Engineering+13 more

Dominion Engineering, Inc.

Reston, VA

Innovative products, expert consulting, and R&D for the next chapter in nuclear energy

WebsitePhone1 office1 projects4 publicationsSize Estimate: 25-100 employeesUpdated Jun 2026

Project: Hanford WTP Technical Issue Resolution

Service: Consulting ServicesService: Materials EngineeringService: Mechanical EngineeringIndustry: NuclearIndustry: FederalType: Materials Engineering+16 more

HukariAscendent Inc

Wheat Ridge, CO

Experts in Nuclear Professional & Technical Services

WebsitePhone7 offices1 leadersFounded 1999Updated Jun 2026

Service detail: Engineering

Service: EngineeringService: Mechanical EngineeringService: Electrical and Instrumentation and Controls EngineeringIndustry: NuclearIndustry: DefenseType: Process Safety Engineering+38 more

PRIME Test and Technical Services, LLC

Huntsville, AL

Enabling Mission Success

WebsitePhone1 office1 projectsSize Estimate: Up to 25 employeesUpdated Jun 2026

Project: US Army OTC Test Technologies Support Services (TTSS)

Service: Engineering ServicesService: Test Range and Laboratory OperationsService: Laboratory and Field Data AcquisitionIndustry: DefenseIndustry: FederalType: Defense Engineering+34 more

Paschal Solutions Inc

Oak Ridge, TN

Your Trusted Partner in Solving Your Toughest Technical Problems

WebsitePhone1 office7 leaders1 credentialsUpdated Jun 2026

Service detail: Nuclear Safety

Service: Nuclear SafetyService: Nuclear Criticality SafetyService: Integrated Safety AnalysesIndustry: NuclearIndustry: FederalType: Power & Utility Engineering+26 more

Radiological Solutions, Inc.

Huntersville, NC

The leader in innovative technology applications

WebsitePhone1 office1 credentialsUpdated Jun 2026

Service detail: Water Chemistry & Treatment

Service: Water Chemistry & TreatmentService: Water TreatmentService: Noble Metals SamplingIndustry: NuclearIndustry: Power GenerationType: Process Engineering+11 more

Walsh Engineering Services

Idaho Falls, ID

Full-service engineering and analysis delivering high-quality, personalized services

WebsitePhone2 offices7 leaders1 credentialsFounded 2005Size Estimate: 100-200 employees

Service detail: Engineering Design & Analysis

Service: Engineering Design & AnalysisService: Custom Equipment Design & IntegrationService: ASME Pressure Vessel & Heat Exchanger DesignIndustry: NuclearIndustry: FederalType: Mechanical Engineering+27 more

Walter Environmental & Engineering Group, Inc.

Grand Junction, CO

Walter Environmental & Engineering Group, Inc. is a Grand Junction, Colorado environmental, civil engineering, and safety consulting firm serving public and private sector clients throughout the Western United States. Founded in 1998 by Ken Walter, it draws on decades of consulting experience to deliver environmental assessment and remediation, civil engineering design and permitting, aerial data acquisition, and safety training services. Clients include oil and gas operators, government agencies, mining programs, and commercial and industrial organizations.

WebsitePhone1 office1 leadersFounded 1998Updated Jun 2026

Service detail: Environmental Assessment & Remediation

Service: Environmental Assessment & RemediationService: ASTM Phase I & II AssessmentsService: Soil and Ground-Water InvestigationsIndustry: Oil & GasIndustry: Environmental & RemediationType: Environmental 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