| Institut | Country | Contact Person |
| PTB | Germany | Th. Bruns |
| NPL | United Kingdom | |
| LNE | France | C. Bartoli |
| MIKES | Finland | S. Saxholm |
| CEM | Spain | N. Medina |
| SP | Sweden | P. Nyfeldt |
| INRIM | Italy | A. Malengo |
| CMI | Czech Rep. | J. Zuda |
| UME | Turkey | Y. Durgut |
| Short name | Full Name |
|---|---|
| HBM | Hottinger Baldwin Messtechnik GmBH |
| SPEKTRA | SPEKTRA Schwingungstechnik und Akustik GmbH |
| VW | Volkswagen AG |
| Porsche | Dr. Ing. h.c. F. Porsche AG |