The Rezayat Group is active in the industries of oil & gas, water, power generation, engineering and transportation,[2] with over 16,000 employees and operations in 13 countries.
Abdullah was educated in Bombay and began his career as the secretary for Karl Twitchell, Director of the Saudi Arabian Mining Syndicate.
Twitchell had previously been the local representative of California-Arabian Standard Oil Company (CASOC), one of the four partners which in May 1933 created what is now Saudi Aramco.
During a trip to Iran during the Second World War, Abdullah was asked to join the Allied administration with responsibility for the distribution of essential foodstuffs and supplies throughout the country.
The Group built up important relationships with major Western and Asian contractors and industrial companies, which provided not just a solid foundation for its growth in the Middle East, but also a springboard for its expansion into other continents.