Ted Geisler is President of Arizona Public Service Company (APS), which is Arizona’s largest electric company and serves approximately 1.4 million customers across the state.

Geisler began his career at APS in 2001 in operations and has served in a variety of roles throughout the company, including as chief financial officer.

A Phoenix native, Geisler values giving back to his hometown and is actively engaged in the community. He currently serves on the boards of the Arizona Chamber of Commerce and Greater Phoenix Economic Council (GPEC). Geisler earned a Bachelor of Science degree from Colorado State University and an MBA with an emphasis on strategy from Arizona State University.

Geisler will assume the roles of Chairman of the Board, President and CEO of Pinnacle West and APS on April 1, 2025.