The International Association of Alpha Chapters (IAAC) includes all chapters in the countries of Bermuda, Germany, Liberia, South Africa, London, U.K.
| Key No. | Name | Chapter Type | Chapter Seat |
| 66 | Beta Psi | College | Richmond, The American International University in London / The University of Westminster London, UK |
| 219 | Epsilon Theta Lambda | Alumni | Bermuda |
| 260 | Eta Epsilon Lambda | Alumni | Monrovia, Liberia |
| 285 | Theta Theta Lambda | Alumni | Germany |
| 675 | Rho Chi Lambda | Alumni | London, UK |
| 674 | Rho Phi Lambda | Alumni | South Africa |
| 972 | Sigma Psi Lambda | Alumni | Abu Dhabi |
| 973 | Tau Alpha Lambda | Alumni | Accra, Ghana |