ATC Associates, an engineering and environmental consulting firm specializing in geotechnical engineering, construction materials testing, special inspections, industrial hygiene, and environmental engineering services, is celebrating its 30th anniversary this year.

Over the last three decades, ATC has worked behind the scenes for hundreds of Fortune 500 companies and was on the scene within hours of several national disasters. From working with the WTC recovery and redevelopment efforts to environmental testing in the aftermath of Hurricanes Katrina and Rita as well as providing geotechnical services and construction materials testing on hundreds of major capital improvement projects across the country, ATC has served as a resource for organizations in petroleum, real estate, retail, manufacturing, financial services, insurance, construction, telecommunications, education, government, and hospitality.

ATC was founded in 1982 in Sioux Falls, SD as an analytical laboratory. The company’s initial services included water quality, lake restoration, and general analytical testing. As demand for ATC’s services grew, it added drug screening for the dog and horse racing industries as well as agricultural consulting and informational research. Adapting to an evolving market, ATC began conducting asbestos analyses and air monitoring services in the same decade, birthing a new direction for the growing company.

“Asbestos management was a hot topic in the early 1980s,” said Don Beck, one of ATC’s first employees, now a senior VP overseeing the North Region’s 30 offices. “In response to EPA regulations, asbestos abatement gained momentum, changing the face of our company from an analytical lab to environmental consulting firm.”

Driven by contractor and clients requests, ATC continued to expand its reach and opened several offices nationwide including New York City, Denver, Lincoln and Omaha, NE, Detroit, St. Louis, Kansas City and Los Angeles. During the 1990s, to increase geographic influence and continue to satisfy its diversified client base, ATC acquired more than 10 companies and 50 additional offices nationwide. Today with more than 71 offices in 39 states, ATC generates more than $200 million in services annually and employs over 1,600 professional, technical, and support personnel nationwide. Learn more at