Corporate Profile

Corporate Headquarters

523 W. 6th Street, Suite 900
Los Angeles, California 90014
telephone: 213.430.4000
facsimile: 213.627.2895

Independent Accountants

Grant Thornton
Los Angeles, California

Transfer Agent Registrar and Dividend Disbursing Agent

Computershare Trust Company, N.A.
330 N. Brand Blvd.
Suite 701
Glendale, CA 91203-2149
(800) 736-3001

Stock Exchange Listing

Symbol: AMBZ

Investor Inquiries

Shareholders, analysts and investors seeking information
about the company should direct their inquiries to:

Wes E. Schaefer, Vice Chairman
American Business Bank
523 W. 6th Street, Suite 900
Los Angeles, CA 90014