First Business Bank to Change Name to Bank of Southern California

SAN DIEGO, CA – First Business Bank N.A. (OTC Bulletin Board: FBBN) has announced that the bank will change its name to Bank of Southern California effective Monday, June 28, 2010.

Nathan Rogge, President and Chief Executive Officer of First Business Bank, said, “The process of selecting a new name has given us an opportunity to revisit our vision to be the best business bank in Southern California and to refine our branding and positioning for further growth. The name Bank of Southern California provides a strong identity for future expansion.

“Our name will change,” Rogge added, “but we remain committed to serving the banking needs of the local San Diego business and professional community as well as our clients’ personal banking needs. The new name reinforces our dedication to delivering exceptional, personalized service to each of our clients throughout the vibrant Southern California region.”

Rogge said the name change resolves trademark issues with a bank in the Midwest that also carries the name First Business Bank.

Rogge noted that the company’s website address will be changed from www.fbbank.com to www.banksocal.com on June 28. The trading symbol for the company’s common stock will remain FBBN. He added that there will be no changes in the bank’s ownership, management or operations as a result of the name change.

First Business Bank, which operates offices in Del Mar, Carlsbad and Ramona, had $124.5 million in assets as of March 31, 2010.