| Certificaathouder | Certificaatnummer | Product | Trede | Geldig tot | Uitgestelde datum ASA | Plaats | Land | Kvk |
|---|---|---|---|---|---|---|---|---|
| Sweco Nederland Holding B.V. | RQA1399115/7106274 | SCL | 4 | 11-11-2028 | De Bilt | NL | 30161447 | |
| Sweco Nederland B.V.(Sweco Nederland Holding B.V.) | RQA1399115/7106274 | SCL | 4 | 11-11-2028 | De Bilt | NL | 27091285 | |
| Sweco Logistiek en Bedrijfshuisvesting B.V.(Sweco Nederland Holding B.V.) | RQA1399115/7106274 | SCL | 4 | 11-11-2028 | Bussum | NL | 32078883 | |
| Sweco Architects B.V.(Sweco Nederland Holding B.V.) | RQA1399115/7106274 | SCL | 4 | 11-11-2028 | De Bilt | NL | 30164248 | |
| N-Sea Group B.V. | RQA00001844/5814052 | SCL | 3 | 17-12-2026 | Dordrecht | NL | 22017742 | |
| Koninklijke Smals N.V. | SKGIKOB.012087.03.NL | SCL | 3 | 08-12-2026 | Cuijk | NL | 13008083 | |
| Garten- und Landschaftsbau - Quathamer GmbH | 4.09.0016 | SCL | 3 | 15-12-2026 | Bad Zwischenahn | DE | HRB 120375 | |
| Aumann Grün AG | 4.09.0017 | SCL Light | 3 | 15-12-2026 | Cloppenburg | DE | HRB 201124 | |
| Omexom Renewable Energies Offshore GmbH | KLN00001026/5662420 | SCL | 3 | 14-12-2026 | Oldenburg | DE | HRB 206598 | |
| G.C. Verweij & Zn. Holding B.V. | 2851743 | SCL Light | 3 | 09-12-2026 | Monnickendam | NL | 63628937 | |
| G.C. Verweij en Zn. Verticaal Transport B.V.(G.C. Verweij & Zn. Holding B.V.) | 2851743 | SCL Light | 3 | 09-12-2026 | NL | 63630877 | ||
| G.C. Verweij en Zn. Machineverhuur B.V.(G.C. Verweij & Zn. Holding B.V.) | 2851743 | SCL Light | 3 | 09-12-2026 | NL | 6360389 | ||
| Volker Wessels Telecom B.V. | 17346-15.2 | SCL | 3 | 22-12-2026 | Nieuwegein | NL | 24321042 | |
| Volker Wessels Telecom Infratechniek B.V. - Son en Breugel(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | Son en Breugel | NL | 32091494 | |
| Volker Wessels Telecom Infratechniek B.V. - 't Harde(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | 't Harde | NL | 32091494 | |
| Hanab Telecom Holding B.V. - Hanab Telecom Infra(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | Nieuwegein | NL | 32091494 | |
| Volker Wessels Telecom Infratechniek B.V. - Papendrecht(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | Papendrecht | NL | 32091494 | |
| MAPXACT B.V.(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | Lieren | NL | 61978957 | |
| Volker Wessels Telecom FttX B.V.(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | Nieuwegein | NL | 24313112 | |
| Recognize B.V. - Almelo(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | Almelo | NL | 64958566 | |
| Hyrde B.V.(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | Maarssen | NL | 71390855 | |
| Hanab Telecom Holding B.V. - Hanab Connectivity Solutions(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | Lieren | NL | 24321042 | |
| Volker Wessels Telecom B.V. - Maarssen(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | Maarssen | NL | 24321042 | |
| Volker Wessels Telecom B.V. - Zwolle(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | Zwolle | 24321042 | ||
| Volker Wessels Telecom Netwerk Solutions B.V.(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | Lieren | NL | 32131577 | |
| Volker Wessels Telecom Services B.V.(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | Nieuwegein | NL | 32086549 | |
| Recognize B.V. - Maarssen(Volker Wessels Telecom B.V. ) | 17346-15.2 | SCL | 3 | 22-12-2026 | Maarssen | NL | 64958566 | |
| Van Lente Systeemintegratie B.V. | 2286085 | SCL Light | 3 | 04-12-2027 | Reeuwijk | NL | 38019586 | |
| Ludwig Freytag GmbH & Co. KG | 44 603 240740 | SCL | 3 | 26-01-2028 | Oldenburg | DE | HRA 2707 | |
| LMR Drilling GmbH(Ludwig Freytag GmbH & Co. KG) | 44 603 240740 | SCL | 3 | 26-01-2028 | Oldenburg | DE | HRA 2707 |