John “Jack” B. Gilbert, a business owner and real estate developer in the Conejo Valley who became a major philanthropist, died on Aug. 2 of complications from pneumonia. He was 91.

Gilbert was founder of TOLD Corp., a development firm now based in Camarillo that builds industrial and high-technology buildings. He was chairman of the board of TOLD at the time of his death.

Gilbert previously owned Zero Corp., a manufacturing company formerly based in the Los Angeles area, now owned by a private equity firm with headquarters in Utah.

Gilbert also served on the board of regents of California Lutheran University in Thousand Oaks. Gilbert and his wife Carol were lifetime donors to the university starting in 1985. The school’s sports and fitness center is named for the couple.

“Jack was a successful entrepreneur who took pride in this University and believed in its potential to serve the needs of the region, said university President Chris Kimball in a prepared statement. “The Gilbert Sports and Fitness Center is testimony to his generosity and his influence on the campus. So, too, are the many other buildings and programs that do not bear his name but exist because of his support.”

A memorial service and celebration of Gilbert’s life is planned for Tuesday, Aug. 14, at 10 a.m. in CLU’s Samuelson Chapel. A reception will follow in the Lundring Events Center in the Gilbert Sports and Fitness Center.

In lieu of flowers, the Gilbert family asks that memorial gifts be sent to California Lutheran University for the John B. Gilbert Scholarship for Business Ethics.

Mark R. Madler