Complete solutions, minus the complexity.

Our national network of engineers, scientists, and specialists work to understand our clients’ needs, then customize solutions to their environmental challenges.

Air, Land, and Water

We deliver comprehensive environmental and engineering services for air, land, and water across a wide range of industries.

Local Everywhere

With more than 100 locations throughout the United States, ATC is local, everywhere — ready whenever and wherever our clients need us.

Expect Excellence.

ATC provides integrated environmental consulting and engineering services from more than 100 locations nationwide. Our comprehensive expertise in air, land, and water combined with full design, project management, and implementation services allows us to handle any challenge from consulting to completion.

As a single source for a wide range of solutions, we help simplify our clients’ projects and create new efficiencies. We partner with them the entire way to reduce complexity, innovate solutions, and get projects done safely and quickly.

Branch Locator.

Search our nationwide listings by using our branch locator.

Weathering the Storm: Hurricane Preparedness and Remediation

Communities, businesses and infrastructure throughout the Gulf Coast and Southeast have experienced the devastating impacts of hurricanes and tropical storms. As hurricane season approaches, make sure your business has a preparedness and remediation plan in place.

Has Your Organization Updated to ISO 45001?

One of the most eagerly awaited Occupational Health and Safety standards, ISO 45001 is set to drastically improve levels of workplace safety. Find out if your organization is ready to bring safety to the frontline with ISO 45001.

Does Your Facility Need a New or Updated SPCC Plan?

The EPA requires certain types of facilities to prepare and implement Spill Prevention, Control, and Countermeasure (SPCC) Plans to prevent oil from reaching navigable waters of the United States or adjoining shorelines.

Fatigue Risk Management: What You Need to Know

Despite what we may see in our work culture today, humans are not designed for working shift work. However, advances in technology and the desire for more production has driven our culture to working around the clock, resulting in unforeseen wear and tear on the human body as time progresses.