12 Groups are associated with the keyword: Theory.
| Antony Group | Indian Institute of Technology (Indian School of Mines) (IIT(ISM)), India | |
| Atomic Physics Group, IIT Roorkee | Indian Institute of Technology, Roorkee, India | |
| Atomic Spectroscopy Group | National Institute of Standards and Technology, United States of America | |
| AtomicCollision@LCPMR Sorbonne University | Laboratoire de Chimie Physique – Matière et Rayonnement (LCPMR), Sorbonne Université, France | |
| Fantz Group | ITER Technology and Diagnostics Division (ITED), Max Planck Institute for Plasma Physics (IPP), Garching, Germany | |
| Fursa Group | Faculty of Science and Engineering, Curtin University, Australia | |
| Kadyrov Group | Faculty of Science and Engineering, Curtin University, Australia | |
| Mol-e Orlando-Paris group | Department of Physics, University of Florida, United States of America | |
| Plasma Spectroscopy Group – Opole | University of Opole, Poland | |
| Song Group | Korea Institute of Fusion Energy, South Korea | |
| Tennyson Group | University College London, United Kingdom | |
| Theoretical Spectroscopy Group | Vilnius University, Lithuania |