Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish. Whether you are a seasoned professional or recent college graduate, Langan will provide you with unparalleled opportunities and a solid foundation for career growth.
Langan Engineering & Environmental Services, a privately held consulting firm with 500 employees in 14 offices around the world, has acquired Treadwell & Rollo, a premier geotechnical and environmental engineering firm based in San Francisco.
Our reputation for providing innovative solutions that yield measurable value for our clients continually forges new enduring relationships for the firm and distinguishes Langan from the competition.
Langan provides site development engineering and environmental consulting for private developers, public agencies, property owners, and institutional clients around the world.
Founded in 1970, Langan employs more than 850 professionals in its Elmwood Park, NJ headquarters and among regional offices in:
New York City, NY • White Plains, NY • Trenton, NJ • Philadelphia, PA • Bethlehem, PA • Doylestown, PA • Pittsburgh, PA • Cleveland, OH • Houston, TX • Bismarck, ND • Oakland, CA • San Francisco, CA • Sacramento, CA • San Jose, CA • Irvine, CA • New Haven, CT • Arlington, VA • Miami, FL
Langan is listed among the Top Design Firms and Top Green Design Firms in Engineering News Record (ENR).
Langan International, the firm’s wholly owned subsidiary headquartered in New York City, provides all firm services for projects in the Middle East, Eastern Europe, Latin America, and the Caribbean. Langan International regional locations are in:
Abu Dhabi • Athens • Doha • Dubai • Istanbul • Panama
