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Kleinfelder

Engineering Service

At Kleinfelder, we have been connecting great people to the best work since 1961. We are engineers, scientists, and construction professionals providing solutions that improve our clients’ transportation, water, energy, and other private infrastructure.

Services

• Corporate Social Responsibility
• Download the 2025 Report
• Environmental
• North Carolina Resilient Coastal Communities
• Napa Valley Vine Transit Bus Maintenance Facility
• Keach Family Library Educational Rain Garden
• Social
• Governance
• We Are Kleinfelder
• San Diego Blanket and Sock Drive
• Habitat for Humanity Jingle Build-Off
• Kleinfelder's Scholarship Program Recognized
• Business Ethics
• Geotechnical
• Design
• Construction Materials Engineering & Testing
• Construction Management
• Environmental Services
• Related Projects
• Bens Run Stream Restoration and Floodplain Reconnection
• Schuylkill County Mining Impacts Remediation Program
• City of San Diego Wastewater Pump Station 1 Upgrades
• North and South Metro Sewer Interceptors Rehabilitation
• Hawk Run Active Treatment Plant Development
• Fall Brook West Abandoned Mine Land Reclamation
• Sand Mine Expansion Design and Permitting
• East and Gold Line Enterprise Commuter Rail (Eagle P3)
• Quakake Tunnel Abandoned Mine Discharge Treatment Facility
• Oil Refinery Solid Waste In-Situ Stabilization
• I-95 and SR 896 Interchange

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Sources: BrightQuery (CDLA-Permissive-2.0); business website read 2026-10-14. About our data.