Langan – Engineering & Environmental Services

ENR Names Alan Poeppel “Top 25 Newsmaker”

Recognized for his work on Saudi Arabia's Jeddah Tower.

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Irene Kropp Joins Langan

Helping to keep Langan at the forefront of environmental consulting in New Jersey.

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Mayor officially welcomes Langan to Parsippany

Langan hosts ribbon-cutting ceremony at new corporate headquarters.

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Langan Opens London Office

Global city. Global firm.

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Langan ranked by Zweig Group

Top 10 "Best Firms to Work For" and "Hot Firms" lists.

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Fort Lauderdale office open

Expanding our reach in the Sunshine State.

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Proud to be in Texas

Our Houston office is officially open.

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Committed to Health & Safety

Our goal is to stay accident free every day.

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Oil and Gas Projects

Natural Gas Production Facilities

Multiple sites in PA and WV

Technical Excellence. Practical Experience. Client Responsiveness.
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"Langan Engineering & Environmental Services, Inc.," "Langan International," "Langan Treadwell Rollo,"
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