Public engineering firm directory

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Gall Zeidler Consultants

Ashburn, VA

Innovative tunnel, geotechnical, and underground engineering solutions

WebsitePhone10 offices7 projects3 leaders7 credentialsUpdated Jun 2026

Project: Potomac River Tunnel

Service: Tunnel and Underground Engineering DesignService: Reference and Detailed DesignService: Design Concepts, Options and FeasibilityIndustry: TunnelsIndustry: TransitType: Civil Engineering+25 more

Reliance Engineers LLC

Wellesley, MA

Delivering innovative engineering solutions that rise to the challenges and complexities of critical infrastructure projects

WebsitePhone3 offices6 projectsUpdated Jun 2026

Project: Ontario Line Urban-Rail Extension

Service: Bridge & Structural EngineeringService: Long-Span Bridge DesignService: Short- & Medium-Span Bridge DesignIndustry: BridgesIndustry: TunnelsType: Structural Engineering+60 more