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

Encorus Group Engineering, P.C.

Springville, NY

Design, Build, and Sustain a Better World

WebsitePhone5 offices5 projects7 leaders4 credentialsFounded 1996

Project: West Valley Demonstration Project

Service: Engineering and Architectural DesignService: Mechanical EngineeringService: Electrical EngineeringIndustry: FederalIndustry: GovernmentType: Architecture & Engineering+46 more

Gasteiger Engineering LLC

Beverly Hills, CA

We are your valued project partner.

WebsitePhone2 offices2 projects3 credentialsSize Estimate: 1-10 employeesUpdated Jun 2026

Project: Hollywood Hills Hillside Retaining Wall

Service: Civil EngineeringService: Rough and precise grading plansService: Drainage and hydrology studiesIndustry: ResidentialIndustry: CommercialType: Automation & Controls+53 more

Heritage Systems Engineering

Oak Ridge, TN

Heritage Systems Engineering is a joint venture between Advanced Automation Corporation and MS Technology Inc. It provides lifecycle systems support for federal capital-project customers, including the U.S. Department of Energy, National Nuclear Security Administration, Environmental Management, and the Department of Defense.

WebsitePhone1 office6 projects5 leaders1 credentialsUpdated Jun 2026

Project: CNS Lifecycle Systems Engineering Services BOA

Service: Lifecycle Systems EngineeringService: Compliance VerificationService: Reliability and Maintainability AnalysisIndustry: FederalIndustry: NuclearType: Civil Engineering+29 more

LoopCalTech LLC

Engineering Tomorrow

Website1 leaders1 credentialsSize Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Instrumentation and Control Systems

Service: Instrumentation and Control SystemsService: Distributed Control Systems (DCS) design and integrationService: Process automation and SCADA systemsIndustry: Oil & GasIndustry: PetrochemicalType: Automation & Controls+80 more

MEGI Engineering Inc.

Lake Oswego, OR

Your Partner in Excellence

WebsitePhone1 office9 projects6 leadersUpdated Jun 2026

Project: Linerboard Machine Rebuild

Service: EngineeringService: Concept DevelopmentService: Full-Service Engineering DesignIndustry: Pulp & PaperIndustry: ChemicalsType: Process Engineering+43 more

Optim Engineering and Technologies LLC

Optimal Approach in Delivering Engineering Solutions Adapting to Evolving Demands

WebsiteFounded 2024Updated Jun 2026

Service detail: Engineering and Design

Service: Engineering and DesignService: Civil EngineeringService: Structural EngineeringIndustry: Renewable EnergyIndustry: UtilitiesType: Civil Engineering+21 more

Wessler Engineering

Indianapolis, IN

There is no water problem we can't solve togetherâ„¢

WebsitePhone8 offices8 projects8 leaders6 credentials3 publications

Project: Warsaw Wastewater Treatment Plant

Service: Wastewater EngineeringService: Wastewater treatment plant designService: Wastewater collection system design and rehabilitationIndustry: GovernmentType: Automation & Controls+54 more

Zachry Nuclear Engineering Inc

Stonington, CT

Dedicated Nuclear Focus

Website2 offices2 credentialsUpdated Jun 2026

Service detail: Engineering

Service: EngineeringService: Mechanical and Electrical EngineeringService: Civil and Structural EngineeringIndustry: NuclearIndustry: Power GenerationType: Automation & Controls+17 more