Alajlan founded the family business in 1979 alongside his brothers Saad, Muhammad, and Fahad. The group launched Abdulaziz Alajlan Sons for Trading & Real Estate Investments as its real estate arm in 2000. The group recorded revenues of $1.7 billion in 2025. As of January 2026, it had completed 15,000 housing units and had 23,000 units in the pipeline, valued at $3 billion. Ajlan Alajlan’s net worth was estimated at $1.3 billion as of March 2026.