This directory aims at historical review only and does not claim to provide actual information.
| Company Name | Address | Postcode | Place | Awarded on | Type of award |
| Containex Container-Handelsgesellschaft m.b.H | IZ NÖ-Süd, Straße 14, Objekt 15 | 2355 | Wiener Neustadt | 23.09.2010 | revocable |
| Chemische Werke Franz v. Furtenbach GesmbH | Franz v. Furtenbach-Straße 1 | 2700 | Wiener Neustadt | 15.10.1976 | revocable |
| CNC Maschinenbau GmbH | Marie Curie Straße 3 | 2120 | Obersdorf / Wolkersdorf | 10.06.2010 | revocable |
| Chamottewaren- und Thonöfenfabrik Aug. Rath jun. AG | Hafnerstraße 3 | 3375 | Krummnussbaum | 10.03.1994 | revocable |
| Croma-Pharma GmbH | Industriezeile 6 | 2100 | Leobendorf | 04.05.2017 | revocable |
| Company Name | Address | Postcode | Place | Awarded on | Type of award |
