Langan Engineering & Environmental Services
Technical Excellence. Practical Experience. Client Responsiveness.
About Langan Engineering & Environmental Services
Langan provides an integrated mix of land development engineering and environmental consulting services in support of land development projects, corporate real estate portfolios, and the energy industry. Its clients include developers, property owners, public agencies, corporations, institutions, and energy companies in the United States and internationally.
Industry
Engineering and environmental consulting
Headquarters
Parsippany, New Jersey, United States (300 Kimball Drive, 4th Floor, Parsippany, NJ 07054)
Company size
Over 1,900 professionals (per company LinkedIn, April 2026)
Founded
1970
What we do
Site/civil engineeringGeotechnical engineeringEnvironmental consultingEnvironmental remediationSurveying/geospatialTraffic and transportation engineeringLand developmentEnergy sector consultingDigital solutions
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