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Columbia Telecommunications Corporation

Bethesda, MD

Closing the digital divide

WebsitePhone1 office1 projectsUpdated Jun 2026

Project: Oregon Statewide Broadband Expansion Partnership

Service: Network Engineering & DesignService: High-Level Network DesignService: Detailed Outside Plant (OSP) EngineeringIndustry: TelecommunicationsIndustry: GovernmentType: Telecom / RF Engineering+26 more
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Infrastructure Consulting & Engineering, LLC

West Columbia, SC

A Full Service Transportation Consulting and Design Firm

WebsitePhone15 offices6 projects5 credentialsFounded 2005Size Estimate: 500-1,000 employees

Project: NC-540 (Triangle Expressway SE Extension)

Service: Roadway and Highway DesignService: Roadway widening and extensionService: Major interchange and intersection designIndustry: TransportationIndustry: GovernmentType: Civil Engineering+85 more
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S&R Engineers, LLC

East Hartford, CT

Engineering Business Continuity

Website1 office1 leadersFounded 2009Updated Jun 2026

Service detail: Planning and Design

Service: Planning and DesignService: Electrical System DesignService: Contract Document PreparationIndustry: CommercialIndustry: IndustrialType: Electrical Engineering+23 more
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Thermal Engineering Group, Inc.

Hendersonville, TN

Independent Consulting and Design Organization

WebsitePhone1 office9 projects3 leaders3 credentialsUpdated Jun 2026

Project: Nashville District Energy System Contract Administration

Service: Engineering and Design ServicesService: Central Plant Design and EngineeringService: Piping System Stress and Network Hydraulic AnalysisIndustry: Power GenerationIndustry: UtilitiesType: Power & Utility Engineering+22 more
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