Ajlan is the chairman of Ajlan & Bros Group, a large Saudi conglomerate with investments in textiles, real estate, mining, energy, logistics, technology, and tourism. He founded Ajlan & Bros in 1979 as a shop specialising in fabric and garments, going on to open a factory in China in 1990 and move into real estate in the 2000s. The company has operations in more than 25 countries on four continents, including the U.S. and China. In 2000, he launched Abdulaziz Alajlan Sons for Trading & Real Estate Investments, which owns residential projects in Saudi Arabia and more than 20,000 residential units under construction. He is also a member of the Saudi Shura Council, a 150-member body.