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.

OSHA Clarifies Beryllium Standard

Beryllium is both a volatile and toxic substance that presents serious risks to human health. After years of research, review and feedback from various groups involved in impacted industries, OSHA found that the previous regulations were not sufficiently protecting workers.

Soils Special Inspections Required by IBC

Conducted to ensure that excavation, foundation and soil properties are adequate to support a planned structure, a soils special inspection is carried out by an approved special inspector who determines compliance with applicable code and established building plans.

The Importance of Construction Materials Testing

A building’s structure is much more than floors, walls and a foundation. Virtually all buildings rely on a variety of support materials, including layers of soil and cement, to maintain long-term stability. Construction materials testing (CMT) is a vital process that helps builders and site owners identify potential problems before committing resources to the project.

Designed for Safety: How to Work Safety into Your Retail Design Plans

Workplace safety is often treated as an afterthought with many business owners only modifying their retail sites to satisfy minimum requirements for environmental health and safety. Read our latest blog to learn more about how safe design can help to cut liability and increase productivity.