We are an engineering, management and development consultancy and one of the largest wholly employee-owned firms of our kind.
We plan, design, deliver and maintain the transport, energy, water, defence and security, and buildings infrastructure that is integral to people's daily lives.
Our core strength is using our expertise to overcome complex challenges to deliver benefits for our clients and the communities they serve.
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.
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 an integrated mix of engineering and environmental consulting services in support of land development projects, corporate real estate portfolios, and the oil and gas industry. Our clients include developers, property owners, public agencies, corporations, institutions, and energy companies around the world.
Founded in 1970, Langan employs over 1,600 professionals in its Parsippany, NJ headquarters and among regional offices in:
New York City, NY • White Plains, NY • Princeton, NJ • Philadelphia, PA • Bethlehem, PA • Doylestown, PA • Pittsburgh, PA • Cleveland, OH • Chicago, IL • Houston, TX • Dallas, TX • Austin, TX • Tyler, TX • Oakland, CA • San Francisco, CA • Sacramento, CA • San Jose, CA • Inland Empire, CA • Irvine, CA • Los Angeles, CA • Santa Barbara, CA • Seattle, WA • Denver, CO • Salt Lake City, UT • Phoenix, AZ • New Haven, CT • Arlington, VA • Boston, MA • Charlotte, NC • Nashville, TN • Fort Lauderdale, FL • Miami, FL • Tampa, FL • Orlando, FL • West Palm Beach, FL
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:
Athens • Dubai • Calgary • Panama • London
Every day, people around the world live, work and play on ground prepared by Keller, the world's largest geotechnical specialist contractor.
Used alone or in combination, our techniques solve a wide range of challenges across the entire construction sector – from industrial, commercial and housing projects to infrastructure construction for dams, tunnels, transportation and water treatment, as well as projects to address environmental challenges.
Global strength and local focus are what makes us unique. Our knowledge of local markets and ground conditions means we’re ideally placed to understand and respond to a particular local engineering challenge. Our global knowledge base then allows us to tap into a wealth of experience, and the brightest minds in the industry, to find the optimum solution.
With around 10,000 employees and operations across five continents, we have the people, expertise, experience and financial stability to respond quickly, get the job done and see it through safely.
By connecting global resources and local knowledge, we can tackle some of the largest and most demanding projects around the world but the everyday work we do is just as important and, in total, we tackle an unrivalled 6,000 projects every year.