Zimmer helped found Caloris in 2006; she will retain her seat on the company’s board.
Linda Zimmer, co-founder and chief financial officer of Caloris Engineering, Easton, Md., retired from the company effective May 11, 2018.
The company said Zimmer — along with her husband, Artur Zimmer, the current Caloris chief technology officer; Daniel Neth, engineering manager; and Barry McFarland, senior process engineer — helped found Caloris in 2006.