Taher founded MultiBank Group in 2005 and has chaired the group ever since, leading its expansion into 100 countries. The group operates under more than 18 financial regulators across five continents. In July 2025, it launched the $MBG Utility Token onto major global exchanges. In April 2025, MultiBank Group achieved its highest-ever single-day trading volume of $55.8 billion, with average daily trading volumes exceeding $35 billion. In May 2026, mb.io, the group’s crypto arm, partnered with Kings Orbis, EON3 Group Ghana, and Mavryk to develop a tokenization program for physically backed gold from West Africa.