We are one of the world’s leading professional services firms, uniting our engineering, advisory and science-based expertise to shape communities to advance humanity.
From local beginnings to a globe-spanning presence today, we operate in over 50 countries and employ approximately 73,000 professionals, known as Visioneers.
Together they pioneer solutions and deliver innovative projects across sectors: Transport & Infrastructure, Property & Buildings, Earth & Environment, Water, Power & Energy and Mining & Metals.
Together let’s unlock potential everywhere.
#WeAreWSP
Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. With 25,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science® to address the entire water cycle, protect and restore the environment, and design sustainable and resilient infrastructure.
Tetra Tech est un chef de file mondial dans le domaine de l'eau, de l'environnement et des infrastructures durables, offrant des services de génie-conseil et d'ingénierie de qualité supérieure pour des projets à l'échelle mondiale. À travers nos 25 000 associés, Tetra Tech propose des solutions optimales aux problèmes les plus complexes en utilisant la science d’abord pour répondre aux besoins en matière de cycle de l'eau, en protection et restauration de l'environnement ainsi qu’en conception d’infrastructures durables et résilientes.
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
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