Public engineering firm directory

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TREKK Design Group

Kansas City, MO

Clean Water. Safe Roads. Improving Lives.

WebsitePhone4 offices2 leaders8 credentialsFounded 2002Size Estimate: 100-499 employees

Service detail: Asset Management & GIS

Service: Asset Management & GISService: System InventoryService: Data CollectionIndustry: Water SupplyIndustry: WastewaterType: Civil Engineering+29 more

The Gateway Engineers, Inc.

Pittsburgh, PA

People, Projects and Purpose

WebsitePhone3 officesUpdated Jun 2026

Service detail: Project Management

Service: Site CivilService: StructuralService: GeotechnicalIndustry: GovernmentIndustry: EducationType: Civil Engineering+23 more

Unified Theory Inc

Woodbury, MN

An Engineering Partner For Your Evolving Needs

WebsitePhone4 offices2 leadersFounded 1998Updated Jun 2026

Service detail: Engineering Design

Service: Engineering DesignService: MechanicalService: CivilIndustry: CommercialIndustry: IndustrialType: Architecture & Engineering+25 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