| Name | Specialization | City |
|---|---|---|
| Zimmerei Reiner Poschkamp | 014 016 014.00 016.00 | Waren |
| Zimmermann GmbH | 014 026 014.00 026.00 014.5 027.9 014.7 | Viersen |
| ZIMO | 002 014 002.00 014.00 003.14 021.13 | Zwickau |
| Zwaagstra Beton BV | 02.c 23.00 23.30 15.40 15.61 02.d 15.44 23.30.a 61.d 82.10 02.h 05.00 05.41 05.43 14.40 14.51 15.00 15.81 0-.1 0-.10 16.2 16.20 16.21 013 014 00.HA GWW 51.30 71.20 00.CB | Hoogeveen |