Who We Are

ATON |a-tän| aid to navigation – a nautical or aviation term used to describe markers and guides which aid the traveler in navigation.

The highly variable and complex needs of our customers demand an ever-increasing understanding of both natural and built environments and how they intersect with technology and society. ATON is here to manage that complexity and to be a guide so that our customers can focus on navigating through today’s turbulent business waters.

Our Mission

Navigating the complex link between business and the environment.


ATON’s staff of highly trained technical experts are credentialed and licensed in their respective fields.

Ronald Carroll, CHMM, CIH

Principal Read Full Bio

Jennifer Carroll

Managing Principal Read Full Bio

Tyler Freeman

Environmental Scientist Read Full Bio

Mark Underwood, PhD, PG

Senior Vice President Read Full Bio

Riley Underwood, PE

Environmental Engineer Read Full Bio

Certifications, Memberships & Associations