?- A1 Austria (A1 Telekom Austria Group)
- Conova Communications GmbH
- DATASIX GmbH
- Huemer Group
- Interxion (Digital Reality Trust Inc.)
- KAPPER NETWORK-COMMUNICATIONS GmbH Austria
- Kontron AG
- Nessus GmbH.
- NTT Ltd.
- Raiffeisen Informatik GmbH & Co KG
- STACKIT
- Stadtwerke Feldkirch