- Arm
- BSC
- Bull (Atos group)
- CEA
- CINECA
- ClusterVision
- Constelcom Ltd
- CRAY
- CSC
- DDN
- Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR) / German Aerospace Center
- E4 Computer Engineering
- ECMWF
- ENEA
- EnginSoft
- EPCC
- Fraunhofer
- Fujitsu
- GRNET
- HLRS
- HPE
- Huawei
- IBM
- ICHEC
- IFPEN
- Infineon
- INFN
- INRIA
- Intel
- IT4Innovations
- Johannes Gutenberg Universität - Mainz
- Jülich
- KTH
- Lenovo
- LINKS Foundation
- LIST
- LRZ
- M3E
- Maxeler
- Megware
- Mellanox
- Numascale
- NVIDIA
- ParTec
- Seagate
- Sicos BV
- STFC
- Submer
- SURFsara
- Synelixis
- TU Delft
- University of A Coruña
- Universitat Politècnica de València
- Université de Versaillles Saint Quentin en Yvelines
- University Carlos III Madrid
- University of Bologna
- University of Heidelberg
- University of Luxembourg
- University of Padova
- URCA
- Verne Global
