- GTS Activity (Switzerland) GmbH in Liquidation
- Nauenstrasse 71
- Basel
- BS
- GTO AG
- Gartenstrasse 95
- Basel
- BS
- GTC Growth & Trust Consulting GmbH in Liquidation
- Murtengasse 5
- Basel
- BS
- GTI Gipser GmbH in Liquidation
- Innere Margarethenstrasse 6
- Basel
- BS
- GT Keramik T. Meier
- Paracelsusstr. 66
- Basel
- BS
- GTS Society AG in Liquidation
- Jacob Burckhardt-Strasse 38
- Basel
- BS
- GTU Service GmbH
- Blotzheimerstrasse 28A
- Basel
- BS
- GTP Baupartner AG Generalunternehmung in Liq.
- Im Hirshalm 20
- Riehen
- BS
- GTP Productions Holm D.E.
- Steinentorstrasse 26
- Basel
- BS
- GTS Holding AG
- Gartenstr. 101
- Basel
- BS
- GTEC GmbH, Groupware Technologies Engineering and Consulting in Liq.
- Arnold Böcklin-Strasse 29
- Basel
- BS
- GTU Travel AG
- Blotzheimerstrasse 28A
- Basel
- BS
- GTV Basel
- Solothurnerstrasse 35
- Basel
- BS
- GTV Basel
- Oberwilerstrasse 159
- Basel
- BS