The Mayapada Group is an Indonesian-based conglomerate founded by Dato Sri Tahir in 1986. Tahir started his empire with a garment and textile manufacturing business, and four years later, he founded Bank Mayapada . While the garment business is no more, the bank has grown steadily throughout the years. The bank went public at the Jakarta Stock Exchange and weathered the 1997 economic crisis and managed to expand even more aggressively after the crisis. With foreign investment partners from the US, UAE and Singapore, the bank now has over 100 branches throughout Indonesia, and in 2007 has been voted as the second best public bank outside state-owned banks by InfoBank magazine, an influential banking magazine in Indonesia. Besides the banking business, Mayapada also has interests in
- The retail industry through partnership with Duty Free Shoppers owned by LVMH, with shops in Jakarta and Bali.
- The property industry with four office towers in the Jakarta CBD area, Mayapada Tower, Menara Topas, Permata Tower 1 and Sona Topas Tower. In Bali, Mayapada developed Mal Bali Galleria, the largest mall in the island, and all-suites Regent Bali Hotel and Residence in Sanur district.
- The healthcare industry running a hospital and building another one called Mayapada Hospital.
Tahir is a devout Christian and lives in Jakarta with his family. He has also been appointed as a Board of Trustee at the University of California, Berkeley, becoming the first man from Southeast Asia to hold this position. In summer 2008, Tahir was awarded an honorary doctorate degree from a university in Surabaya, Indonesia.
On April 2011, Tahir donated $1 million to the University of California, Berkeley for international student fellowships for students in the full-time MBA program at Berkeley-Haas. It was his duty as a member of the university's board of trustees to make the donation. 
- "Bank Mayapada". Retrieved 15 August 2013.