Sage ATC Environmental Consulting is now Atlas. To learn more about our enhanced services, please follow Atlas on LinkedIn or online at www.oneatlas.com ⁣ Sage ATC provides environmental consulting services with a focus on air quality and general Clean Air Act compliance. Founded in 1998, Sage ATC professionals continue to bring independent thinking and creative problem solving for environmental issues as well as innovative perspectives and exceptional levels of knowledge. Sage ATC’s culture and management promotes excellence — ensuring quality is a benchmark of all our solutions.