Know more about Osama Bin Laden - The founder of al-Qaeda. Osama Bin Mohammed Bin Awad Bin Laden was the founder of al-Qaeda, the organization that claimed responsibility for the September 11 attacks on the United States, along with numerous other mass-casualty attacks against civilian and military targets. He was a Saudi Arabian, a member of the wealthy Bin Laden family, and an ethnic Yemeni Kindite.