Brown Brothers Harriman is one of the largest, most prestigious private banks in the US. As a private partnership, the bank is not insured by the FDIC, and each of its some 40 partners has unlimited liability. The company provides investment management, brokerage, banking, and trust services to financial institutions, corporations, and well-off families and individuals around the world. It also provides merger and acquisition advisory, securities lending, and corporate financing services. Founded in 1818 and known for its conservative investment approach, Brown Brothers Harriman oversees some $45 billion in assets.