| Direct Associations |
|---|
| Name | Relationship | Link(s) | Earliest
Associated |
|---|
 Mohamed Atta | Supervisor | 9-11 plotters
Hamburg Cell
Atta and Jarrah go to Karachi
Hamburg Cell in Afghanistan
Hamburg Cell in Kandahar
Atef meets with Hamburg cell
Atta and Jarrah get licenses
Atta takes Jarrah to Miami airport
9-11
| Late November 1999 |
| Mohammed Haydar Zammar | Associate | | 1997 |
| Saeed al-Ghamdi | Same Group | United Airlines Flight 93 Hijackers
Jarrah joins UA 93 team in Newark
9-11
UA 93 takes off
UA 93 hijacked
UA 93 crashes
| Sept. 9, 2001 |
| Ahmed al-Haznawi | Same Group | United Airlines Flight 93 Hijackers
Jarrah joins UA 93 team in Newark
9-11
UA 93 takes off
UA 93 hijacked
UA 93 crashes
| Sept. 9, 2001 |
| Ahmed al-Nami | Same Group | United Airlines Flight 93 Hijackers
Jarrah joins UA 93 team in Newark
9-11
UA 93 takes off
UA 93 hijacked
UA 93 crashes
| Sept. 9, 2001 |
| Marwan al-Shehhi | Same Group | Hamburg Cell
Slahi meets with Hamburg Cell
Hamburg Cell in Afghanistan
9-11
| October 1999 |
| Ramzi Binalshibh | Same Group | Hamburg Cell
Binalshibh meets Jarrah
Slahi meets with Hamburg Cell
Hamburg Cell in Kandahar
Atef meets with Hamburg cell
Jarrah sees Binalshibh in Germany
9-11
| Late 1997 |
 Said Bahaji | Same Group | Hamburg Cell
| |
| Zakariya Essabar | Same Group | Hamburg Cell
| |
| Mohamedou Ould Slahi | Same Event | Slahi meets with Hamburg Cell
| October 1999 |
| Mohammed Atef | Same Event | Atef meets with Hamburg cell
9-11
| Early December 1999 |
| Indirect Associations |
|---|
 Osama bin Laden | Indirect | 9-11
| Sept. 11, 2001 |
| Khalid Shaikh Mohammed | Indirect | 9-11
| Sept. 11, 2001 |
| Nawaf al-Hazmi | Indirect | 9-11
| Sept. 11, 2001 |
| Khalid al-Mihdhar | Indirect | 9-11
| Sept. 11, 2001 |
| Hani Hanjour | Indirect | 9-11
| Sept. 11, 2001 |
| Abdul Aziz al Omari | Indirect | 9-11
| Sept. 11, 2001 |
| Satam al Suqami | Indirect | 9-11
| Sept. 11, 2001 |
| Wail al-Shehri | Indirect | 9-11
| Sept. 11, 2001 |
| Waleed al-Shehri | Indirect | 9-11
| Sept. 11, 2001 |
| Fayez Bannihammad | Indirect | 9-11
| Sept. 11, 2001 |
| Mohand al-Shehri | Indirect | 9-11
| Sept. 11, 2001 |
| Ahmed al-Ghamdi | Indirect | 9-11
| Sept. 11, 2001 |
| Hamza al-Ghamdi | Indirect | 9-11
| Sept. 11, 2001 |
| Majed Moqed | Indirect | 9-11
| Sept. 11, 2001 |
| Salem al-Hazmi | Indirect | 9-11
| Sept. 11, 2001 |
| Ali Abdulaziz Ali | Indirect | 9-11
| Sept. 11, 2001 |
| Mustafa Ahmed al-Hawsawi | Indirect | 9-11
| Sept. 11, 2001 |
| Tawfiq bin Attash | Indirect | 9-11
| Sept. 11, 2001 |
| Abu Turab al Urdani | Indirect | 9-11
| Sept. 11, 2001 |
| Direct Associations describe relationships in which the two are believed to have had a personal relationship. Indirect associations are those who are connected through an event or group, but it is not established in sources that they ever had direct contact. |
