EX-21 4 subsidiariesoftheregistran.htm EXHIBIT 21
Exhibit 21
Subsidiaries of the Registrant

Subsidiary | State of Incorporation or Organization
First Business Bank | Wisconsin
First Business Capital Corp. | Wisconsin
First Business Equipment Finance, LLC | Wisconsin
Rimrock Road Investment Fund, LLC | Wisconsin
BOC Investment, LLC | Wisconsin
First Madison Investment Corp. | Nevada
First Business Bank - Milwaukee | Wisconsin
FBB-Milwaukee Real Estate, LLC | Wisconsin
Alterra Bank | Kansas
FBFS Statutory Trust II | Delaware