Landon invested the money he had made during his time in Oman, diversifying his wealth into mineral exploration and farming in Africa, property and real estate investments in Europe and America, and a wide range of financial portfolios in global markets. His fortune was estimated at US$750 million or higher. Landon was known to be a patron of the arts and society as well as an avid conservationist, generously assisting with fundraising for foundations and charities. Landon also played an important role as intermediary in several questionable deals like when giant telecom company
Ericsson sold telecommunications equipment to Oman in the late 1990s. The connection was revealed by a joint investigation into Landon's business by the
Swedish Public Television "
Uppdrag granskning" and
Swedish Public Radio's "
Dagens Eko" in January 2007. Landon was also behind another questionable deal when in 1999 Swedish jetfighter
Saab and UK defence giant
BAE Systems offered millions of dollars in bribes to Czech politicians to buy the
Gripen jet-fighter. The real beneficiary of the money paid out was the Austrian Count Alfons von
Mensdorff-Pouilly, a longtime agent for BAE and a first cousin of Landon's wife Princess Katalina Esterházy de Galántha. Mensdorff-Pouilly received secret commission contract of at least 81 million Swedish crowns for the final deal in 2003 when the
Czech Republic leased Gripen jetfighter. Both the Ericsson Oman deal and the SAAB/BAE deal has been the focus of several police and parliamentary investigations. By 2008 investigations had opened in the
Czech Republic,
Hungary,
Sweden, United Kingdom, United States,
Switzerland, and
Austria. Tim Landon was also involved in the smuggling of a
Bofors cannon to the sultanate of Oman in the 1980s. "Sultan Quaboos of Oman got it into his head that his security would be enhanced if his yacht was kitted out with the Bofors guns. He wanted the Bofors guns and the government in Sweden objected to this deal, and this is where Landon and his associates always came into play. If something was denied them by diplomatic channels they would take the scenic route." ==Family and legacy==