| Name | Institution | Stay | Group | Host |
|---|---|---|---|---|
| Vladimir Avila-Reese | UNAM | 17 Sep 19 - | Astro | |
| Magdalena Sieniawska | Copernicus Centre Warsaw | 1 Oct 19 - 31 Mar 20 | Gravity | Ian Jones |
| Vojtech Witzany | Czech Academy of Sciences, Prague | 1 Oct 19 - 29 Nov 19 | Gravity | Leor Barack |
| Hiromasa Watanabe | U. of Tsukuba | 2 Oct 19 - 2 Nov 19 | HEP | |
| Oscar Reula | U. of Cordoba | 3 Oct 19 | Gravity | Soichiro Isoyama |
| Aldo Rodriguez-Puebla | UNAM | 18 Oct 19 - | Astro | |
| Nathan Seiberg | IAS | 11-15 Nov 19 | String | Kostas Skenderis |
| Martin Taylor | Imperial | 27-28 Nov 19 | Gravity | Leor Barack |
| Katy Clough | Oxford | 5 Dec | Gravity | Leor Barack |
| Özer Özdal | Concordia U. | 6 Jan 20 - 14 Feb 20 | HEP | |