Public engineering firm directory

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Buchart Horn, Inc.

York, PA

Shaping the built environment with precision, creativity, and purpose since 1945

WebsitePhone9 offices6 projects4 leadersFounded 1945Size Estimate: 100-500 employees

Project: I-40/I-240 Interchange Improvements, Memphis, TN

Service: Water Resources EngineeringService: Wastewater treatment plant engineeringService: Water distribution and collection systemsIndustry: Water ResourcesIndustry: WastewaterType: Architecture & Engineering+41 more

Cosmos Technologies, Inc.

Pittsburgh, PA

Innovation for the Future

WebsitePhone5 officesFounded 1998Updated Jun 2026

Service detail: Civil Site Design & Development

Service: Civil Site Design & DevelopmentService: Site PlanningService: Design From Concept Through Construction AdministrationIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+36 more

Dynotec Inc

Columbus, OH

Trusted to Build What's Next

WebsitePhone5 offices4 projects13 leaders1 credentialsFounded 1990

Project: Youngstown Air Reserve Station Hanger Renovation

Service: ArchitectureService: ADA ComplianceService: BIM ModelingIndustry: CommercialIndustry: FederalType: Architecture & Engineering+37 more

Multi Lynx Companies Inc

Pittsburgh, PA

Multidisciplinary Engineering, Project Management & Business Technology Services

WebsitePhone1 office3 projects2 leadersUpdated Jun 2026

Project: Facility Sorting and Distribution Center

Service: Engineering ServicesService: Civil EngineeringService: Geotechnical EngineeringIndustry: CommercialIndustry: ResidentialType: Civil Engineering+24 more

R2O Consulting, LLC

Cleveland, OH

R2O Consulting, LLC is a Cleveland-based engineering and consulting firm founded in 2017 that delivers infrastructure planning, water resources, and environmental services to public utilities, airports, developers, and contractors. Its team of approximately 20 professionals integrates hydraulic and hydrologic modeling, GIS analysis, asset management, and environmental compliance services across projects focused on aging infrastructure rehabilitation, water resource protection, and regulatory planning. R2O operates from offices in Cleveland, Pittsburgh, Detroit, Denver, Columbus, and Cincinnati.

WebsitePhone6 officesFounded 2017Size Estimate: 20 employeesUpdated Jun 2026

Service detail: Infrastructure Planning and Management

Service: Infrastructure Planning and ManagementService: Capital Program PlanningService: Asset ManagementIndustry: Water SupplyIndustry: Stormwater & Flood ControlType: Civil Engineering+24 more

Rhea Engineers & Consultants, Inc.

Pittsburgh, PA

Responsive. Resourceful. Reliable.

WebsitePhone1 office5 projects3 leadersFounded 2001Updated Jun 2026

Project: Geotechnical Investigation + Design for Burkey Bridge

Service: Civil Site DevelopmentService: Comprehensive EngineeringService: SurveyingIndustry: AviationIndustry: CommercialType: Civil Engineering+49 more