EXHIBIT 23 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We have issued our report dated March 28, 2007, accompanying the consolidated financial statements included in the Annual Report of Berkshire Bancorp Inc. and subsidiaries on Form 10-K for the year ended December 31, 2006. We hereby consent to the incorporation by reference of said report in the Registration Statement of Berkshire Bancorp Inc. on Forms S-8 (File No. 333-41708, effective July 19, 2000 and File No. 333-22287, effective February 25, 1997). /s/ GRANT THORNTON LLP New York, New York March 28, 2007