[2] In 1760, the elder Théophile gave up his business and his sons Charles and Theophile the Younger assumed control of the company.

[7][8] Casenove settled in at Market Street in Philadelphia, where he dealt with financier Robert Morris; his fellow traveller Gerrit Boon later went north.

In 1792, Cazenove invested his clients' money in development bonds issued by the new states and the federal government, after Alexander Hamilton promised to pay the debt in full.

[9] In order to implement these large and difficult purchases (sometimes complicated by the claims of Native Americans), he employed the advisory services of Hamilton and, later, Aaron Burr.

He left the employment of the Dutch investors in 1802 and sought a position under Charles Maurice de Talleyrand-Périgord, who he had met in Philadelphia in 1795.

[15] Cazenove died on 6 March 1811 in Paris at the Hôtel de Galliffet, 84 rue du Bac, owned by Talleyrand.