Baring Brothers & Co. (London, England)

In 1800, John retired and the company was reorganized as Francis Baring and Co. Francis's new partners were his eldest son Thomas (later to be Sir Thomas Baring, 2nd Baronet) and son-in-law, Charles Wall. Then, in 1802, Barings and Hope & Co. were called on to facilitate the largest land purchase in history: the Louisiana Purchase, which doubled the size of the USA. It is regarded as "one of the most historically significant trades of all time". This was accomplished even though Britain was at war with France and the sale helped to finance Napoleon's war effort. Technically, the United States purchased Louisiana from Barings and Hope, not from Napoleon. Baring was willing to help Napoleon in the short term because he, and British politicians who backed him, predicted that American expansion into Louisiana would ensure Barings' profits in Britain. After a $3 million down payment in gold, the remainder of the purchase was made in United States bonds, which Napoleon sold to Barings through Hope & Co. of Amsterdam at a price of $87.50 per $100 face value (a discount of one-eighth). Francis's second son Alexander, working for Hope & Co., made the arrangements in Paris with François Barbé-Marbois, Director of the Public Treasury. Alexander then sailed to the United States and back to pick up the bonds and deliver them to France.

In 1803, Francis began to withdraw from active management, bringing in Thomas's younger brothers Alexander and Henry to become partners in 1804. The new partnership was called Baring Brothers & Co., which it remained until 1890. The offspring of these three brothers became the future generations of Barings leadership. In 1806, the company relocated to 8 Bishopsgate, where it stayed for the remaining life of the company. The building underwent several expansions and refurbishments, and was finally replaced with a new high-rise building in 1981.