Si Robertson net worth: Si Robertson is an American duck hunter and reality television star who has a net worth of $8 million. Si Robertson is one of the stars of A&e's newest hit show "Duck Dynasty". Si is the younger brother of family patriarch Phil Robertson who was the original inventor and founder of the Duck Commander company. Si Robertson is an army veteran who served in Vietnam. Robertson retired from the army in 1993 and went to work full time for Duck Commander where he designs the reeds for all the duck calls. On Duck Dynasty, Si appears with nephew Willie Robertson who is currently the CEO of Duck Commander as well as the entire extended Robertson family. The show was an immediate hit for A&E and today draws over 8 million viewers every episode. The third season finale was watched by more than 10 million people, beating out network rival American Idol by a long shot. Si Robertson released his memoir "Si-ology" in October 2013. The book received 500,000 pre-orders before hitting bookshelves and went on to become a massive success. Si has been married to his wife "Miss Christine" for more than 40 years. They have two children, a daughter named Trasa and a son named Scott. They also have eight grandchildren, all of whom are sons.