Public engineering firm directory

Find engineering consulting firms by capability and location.

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Xdesign Engineering Services

Washington, DC

Innovative Engineering Solutions

Website1 officeUpdated Jun 2026

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Power Distribution DesignService: Lighting DesignIndustry: ManufacturingIndustry: HealthcareType: Electrical Engineering+28 more

YCE Energy LLC

Energy-as-a-Service for AI and industrial infrastructure.

Website6 projects3 credentialsSize Estimate: 1-24 employeesUpdated Jun 2026

Project: Full Cooling & Heat Recovery System Upgrade

Service: Power Generation & StorageService: Microgrid EngineeringService: Combined Cycle Power PlantsIndustry: IndustrialIndustry: ManufacturingType: EPC+32 more

Yogi Kwong Engineers, LLC

Honolulu, HI

Always Digging Deeper

WebsitePhone1 office5 projects2 leaders14 credentialsFounded 2005

Project: Honouliuli Wastewater Treatment Plant Secondary Treatment, Phase 1B

Service: Geotechnical EngineeringService: Trenchless EngineeringService: Dam RehabilitationIndustry: InfrastructureIndustry: Water SupplyType: Geotechnical Engineering+24 more

York & Associates Engineering, Inc.

Bainbridge, GA

Cost-effective, low-maintenance, and enduring solutions for communities and clients.

WebsitePhone1 office10 projects5 credentialsFounded 2003Updated Jun 2026

Project: Bainbridge High School Water & Sewer Improvements

Service: Municipal EngineeringService: Planning & LayoutService: Grant and Funding Application AssistanceIndustry: GovernmentIndustry: TransportationType: Civil Engineering+71 more

ZAP Engineering & Construction Services, Inc.

Lakewood, CO

Excellence in Execution

WebsitePhone2 offices7 projectsUpdated Jun 2026

Project: 60 MMSCFD Libby Gas Plant

Service: Civil and Structural EngineeringService: Civil EngineeringService: Structural Engineering DesignIndustry: Oil & GasIndustry: MiningType: Automation & Controls+34 more

ZI Engineering, P.C.

Lynbrook, NY

ZI Engineering, P.C. is a multi-disciplinary engineering practice based in Lynbrook, New York, providing construction management, resident engineering, condition assessment, facade inspection, structural design, special inspections, and transportation engineering. The practice delivers services to public agencies and private owners across the New York Metro area, serving clients such as NYCDEP, MTA, NYCSCA, NYCDDC, NYCHA, and NYSOGS.

WebsitePhone2 offices13 projectsUpdated Jun 2026

Project: Water Main Extension/Replacement near NYC Transit Facilities (Project GE353)

Service: Construction Management, Resident Engineering, and Construction InspectionService: Construction ManagementService: Resident Engineering InspectionIndustry: InfrastructureIndustry: TransportationType: Civil Engineering+29 more

ZOFS Engineering P.C.

Innovating Infrastructure

Website6 projectsFounded 2012Updated Jun 2026

Project: SE-823: High Level of Storm and Sanitary Sewers

Service: Civil EngineeringService: Surface Transportation InfrastructureService: Utility InfrastructureIndustry: GovernmentIndustry: TransportationType: Civil Engineering+21 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

iCivil Inc.

Timonium, MD

Innovative Civil Solutions

WebsitePhone1 office4 projectsFounded 2008Size Estimate: 32 employeesUpdated Jun 2026

Project: Baltimore District Court Conversion Project

Service: Civil EngineeringService: Construction ManagementService: Claims Analysis and SchedulingIndustry: InfrastructureIndustry: GovernmentType: Civil Engineering+19 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

proHNS LLC

Juneau, AK

Alaska Civil Engineering

WebsitePhone4 offices3 projects4 credentialsFounded 2015Updated Jun 2026

Project: Kasaan Access Road Fish Passage Improvements

Service: Civil EngineeringService: Civil Engineering Design For RoadsService: SitesIndustry: GovernmentIndustry: AviationType: Civil Engineering+6 more