| Certificaathouder | Certificaatnummer | Product | Trede | Geldig tot | Hoofdvestiging | Land | Kvk |
|---|---|---|---|---|---|---|---|
| Antea Group | 278772-2018-OTH-NLD-DNV | SCL Original | 4 | 19-11-2025 | Heerenveen | NL | 29021830 |
| Antea Group Businesslijn Infra / adviesgroep Asset Management(Antea Group) | 278772-2018-OTH-NLD-DNV | SCL Original | 4 | 19-11-2025 | Heerenveen | NL | 29021830 |
| Antea Group Businesslijn Infra / Adviesgroep Rail(Antea Group) | 278772-2018-OTH-NLD-DNV | SCL Original | 4 | 19-11-2025 | Almere | NL | 29021830 |
| Henskes Noord B.V. Afdeling Hoogspanning | 0418SCL451 | SCL | 3 | 26-10-2027 | Geesburg | NL | 60659211 |
| Primo Marine The Netherlands B.V. | 10000516455-MSC-DNV-NLD | SCL Light | 3 | 26-01-2025 | Rotterdam | NL | 24296958 |
| Cteam Consulting & Anlagenbau GmbH | 2231818 | SCL | 3 | 11-01-2025 | Ummendorf | DE | HRB 641741 |
| Cteam Leitungsbau Österreich GmbH(Cteam Consulting & Anlagenbau GmbH ) | 2231818 | SCL | 3 | 11-01-2025 | Linz | AT | HRB 641741 |
| DNV Netherlands B.V. - Business Area Energy Systems | 0418SCL254 | SCL | 4 | 23-12-2024 | Arnhem | NL | 09006404 |
| Iv-Infra BV | RQA00000927/4191324 | SCL Original | 3 | 26-01-2025 | Sliedrecht | NL | 23089813 |
| Iv-Infra België bvba(Iv-Infra BV) | RQA00000927/4191324 | SCL Original | 3 | 26-01-2025 | Stekene | BE | BE 0697.725.453 |
| Integra Beveiliging BV | 0418SCL368 | SCL Original | 4 | 28-06-2026 | Zwijndrecht | NL | 23082099 |
| Qirion BV | K-0205935/ 2 | SCL Original | 3 | 01-07-2025 | Duiven | NL | 09119276 |
| Duteq Railinfra B.V. | 0418SCL257 | SCL Original | 4 | 01-12-2024 | Utrecht | NL | 30183315 |
| RailSupport BV | 0418SCL330 | SCL Original | 4 | 11-12-2025 | Weesp | NL | 36053845 |