His conglomerate companies Alliance Global Group, Inc. and Megaworld Corporation presides a wide extension of business interests in real estate, liquor, casinos, high-technology, resorts, and restaurants.

In 2011, Forbes magazine rated him fourth on the list of the "Philippines 40 richest" with an estimated net worth of $2 billion.

[3] As of August 2023, Forbes magazine ranks him as the 11th-wealthiest person in the Philippines, with his net worth of US$2.4 billion.

[4] Originally an immigrant from China and a supporter of the Communist Party, Tan was born in Quanzhou, Fujian province.

[7] It is composed of four companies: The government of Quezon City honored Tan as "Businessman of the Year" for 2004.