Brown Brothers Harriman & CO.

The oldest private investment bank in the U.S.

Private investment banking, custody, and wealth management · Since 1931

Chicago office of Brown Brothers Harriman & Co. at 320 S Canal (BMO Tower). BBH formed in 1931 through the merger of Brown Brothers & Co. (founded 1818) and Harriman Brothers & Co. The firm serves sophisticated individuals and institutions across two business lines: Investor Services (custody, accounting, administration, capital markets) and Capital Partners (wealth management, corporate advisory and banking, investment management, private equity).

Part of Brown Brothers Harriman

From bbh.com — verified 2026-05-19. Check the site for current hours and details.