​ATCO Officers

​​​​​
Nancy C. Southern

Nancy C. Southern
Chair & Chief Executive Officer

Siegfried W. Kiefer

Siegfried W. Kiefer
President & Chief Strategy Officer

Dennis DeChamplain

Dennis A. DeChamplain
Senior Vice President & Chief Financial Officer

Photo of M. George Constantinescu M. George Constantinescu
Senior Vice President & Chief Transformation Officer
Sett Policicchio

Sett F. Policicchio
Senior Vice President, Special Projects

George J. Lidgett

George J. Lidgett
Managing Director, Pipelines & Liquids

Wayne K. Stensby

Wayne K. Stensby
Managing Director, Electricity

Anthony L. Maher

Anthony L. Maher
Vice President, Controller

Robert C. (Rob) Neumann

Robert C. Neumann
Vice President, Internal Audit

Katie Patrick

Katie Patrick
Vice President, Finance & Risk

Alan Skiffington

Alan M. Skiffington
Vice President & Chief Information Officer

Carol Gear

Carol Gear
Corporate Secretary