Exhibit 21 List of Subsidiaries of BankBoston Corporation Information reflected is as of December 31, 1998 except where noted. There is no parent company of BankBoston Corporation (the "Corporation"). BankBoston, N.A. ("BKB"), all of whose voting securities are owned indirectly by the Corporation, is the principal subsidiary of the Corporation. A number of entities which are owned wholly or in part, either directly or indirectly, by the Corporation are not listed below. However, their assets if considered in the aggregate as a single subsidiary would not constitute a significant subsidiary of the Corporation as of December 31, 1998. JURISDICTION NAME OF SUBSIDIARY (1) (2) OF ORGANIZATION - -------------------------- --------------- BankBoston, N.A. (3) US BancBoston Aircraft Leasing Inc. MA BancBoston Insurance Agency, Inc. MA BancBoston Insurance Agency of Rhode Island, Inc. RI BancBoston International Leasing LLC DE BancBoston Leasing Inc. MA BancBoston Transport Leasing Inc. MA BancBoston Leasing Services Inc. MA BancBoston Services, Inc. MA BancBoston Ventures Inc. MA BankBoston Commerical Loan Funding LLC DE BankBoston Commerical Loan Master LLC DE BankBoston Credit Corporation MA BankBoston Development Company, L.L.C. (4) MA BankBoston International US Edge Act Corp. BankBoston Investor Services, Inc. MA BankBoston Retail Finance Inc. DE BayBanks Finance & Leasing Co., Inc. MA BayBanks Investment Management, Inc. MA BayBanks Credit Corp. MA BayBanks Systems, Inc. MA Boston Bancorp Securities Inc. MA Boston World Holding Corporation MA Boston Overseas Financial Corporation US Edge Act Corp. Equiserve Limited Partnership (5) MA Multibank Service Corp. MA RV Marine Funding Corporation DE West Broadway Security Corp. MA BancBoston Investments Inc. MA BancBoston Capital, Inc. MA BancBoston Leasing Investments Inc. MA BancBoston Real Estate Capital Corporation MA BancBoston Robertson Stephens Inc. MA BancBoston Robertson Stephens International Ltd. U.K. BankBoston (NH), N.A. US Bank of Boston Florida, N.A. US BankBoston Capital Trust I DE BankBoston Capital Trust II DE BankBoston Capital Trust III DE BankBoston Capital Trust IV DE BankBoston Maine, N.A. US Boston International Holdings Corporation MA Boston Overseas Holding Corp. MA Bulfinch Indemnity Company, Ltd. VT FSC Corp. MA Pacific National Corporation MA RIHT Life Insurance Co. AZ Back Bay Capital LLC DE - ---------------------- (1) Except as noted, each such business organization is directly or indirectly owned by the Corporation. (2) BKB and certain other subsidiaries own a number of subsidiaries which hold real property acquired in connection with certain loan workout situations. If considered in the aggregate as a single subsidiary, they would not constitute a significant subsidiary. (3) 99.72% owned by BankBoston Corporation. and .28% owned by Pacific National Corporation. (4) 99% owned by BankBoston, N.A. and 1% owned by BancBoston Investments Inc. (5) Joint venture in which an interest of.5% is held by BancBoston Services and a 24.5% limited partnership interest is held by BankBoston, N.A.