Public engineering firm directory

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Ampirical

Partnering with you to deliver innovative, reliable energy solutions that enhance lives and strengthen the grid.

Website3 projects1 credentialsSize Estimate: 250-500 employeesUpdated Jun 2026

Project: 230kV Transmission Line EPC

Service: Substation EngineeringService: Full physical, civil, structural, and P&C designService: Grounding, shielding, and lightning protectionIndustry: Electric UtilitiesIndustry: Power GenerationType: Automation & Controls+58 more

Barrier Island Consulting, PLC

Greeneville, TN

Expert physical security and engineering solutions protecting critical infrastructure from explosive threats.

Website1 office5 leadersSize Estimate: 1-5 employeesUpdated Jun 2026

Service detail: Explosive Research

Service: Explosive ResearchService: Investigation Into Energetic MaterialsService: Chemical CompoundsIndustry: DefenseIndustry: FederalType: Defense Engineering+18 more

CCI Engineering Services

Columbus, OH

Quality Engineering Services for 30+ Years

WebsitePhone6 offices2 credentialsFounded 1984Updated Jun 2026

Service detail: CADD and Modeling

Service: CADD and ModelingService: CADD ServicesService: Geographic Information SystemsIndustry: AviationIndustry: TransportationType: Civil Engineering+34 more

LineWorks Engineering, LLC

Atlanta, GA

A Trusted Connection

WebsitePhone3 officesUpdated Jun 2026

Service detail: Transmission Line Design

Service: Transmission Line DesignService: New Transmission Line ConstructionService: Transmission Line Rebuilds and UpgradesIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Electrical Engineering+25 more

Maximous Traffic Consulting

Traffic Engineering Expert Witness

Website1 leadersUpdated Jun 2026

Service detail: Expert Witness

Service: Expert WitnessService: Crash ReviewService: Traffic Engineering EducationIndustry: LegalIndustry: TransportationType: Transportation Engineering+1 more

STS International, Inc.

Mission-Driven Innovation for Defense and National Security

Website3 credentialsFounded 1992Updated Jun 2026

Service detail: Engineering and Integration Services

Service: Engineering and Integration ServicesService: Systems Engineering ServicesService: Software Engineering and Application DevelopmentIndustry: DefenseIndustry: Intelligence & National SecurityType: Defense Engineering+23 more

Transpacific Technologies, Inc.

Pasadena, CA

Focusing on what Matters Most

WebsitePhone1 office4 projects4 leaders2 credentialsSize Estimate: 1-50 employees

Project: Mars 2020 Mission Software Tools

Service: Systems EngineeringService: Requirements DevelopmentService: Verification and ValidationIndustry: FederalIndustry: GovernmentType: Aerospace Engineering+41 more

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