Robert Frank Agostinelli (born May 21, 1953) is an American self made billionaire financier who is the chairman and co-founder of private equity firm Rhône Group. Forbes estimates Agostinelli's net worth to be $1.0 billion, ranking him as the 416th richest American. Agostinelli was also ranked #124 amongst the richest people in the United Kingdom by the Sunday Times Rich List in 2012 and 2013 with a net worth of £650 million.