Bank United Business Bank
United Business Bank is a federally insured bank based in Walnut Creek, California.
- Type
- Bank
- Charter
- State-chartered commercial bank, Federal Reserve member
- Primary regulator
- FED
- Established
- July 20, 2004
- Headquarters
- Walnut Creek, CA
- FDIC certificate #
- 57716
- Fed RSSD ID
- 3281510
- Holding company
- Baycom Corp
- Website
- www.unitedbusinessbank.com
Source: U.S. FDIC BankFind & NCUA 5300 Call Report (public data). Data sources · Data as of Q1 2026
Branches by state
United Business Bank operates 34 branch locations across 5 states. Select a state to drill down to its towns and individual branches.
Ownership
United Business Bank is owned by Baycom Corp. See the full ownership & merger history.
United Business Bank financial summary
Other banks in California
Federally insured banks headquartered in California, by total assets.
- City National Bank $99.95B
- East West Bank $82.47B
- Banc of California $34.64B
- Axos Bank $28.24B
- Cathay Bank $24.04B
- Mechanics Bank $21.4B
- Bank of Hope $18.65B
- Citizens Business Bank, National Association $15.51B
Similar-size banks
Institutions close to United Business Bank’s $2.63B in assets.
- Cornerstone Bank $2.65B
- Machias Savings Bank $2.65B
- Medallion Bank $2.65B
- Bank Five Nine $2.61B
- FCB Banks $2.61B
- Beverly Bank & Trust Company, National Association $2.66B