| BSI | Milton Keynes | |
| CSA Group | Toronto | |
| DEKRA Certification B.V. | Arnhem | |
| Element Materials Technology | Skelmersdale | |
| Eurofins Electric & Electronic Product Testing AG | Fehraltorf | |
| Eurofins MET Labs | Baltimore | |
| Hermon Laboratories Ltd | Binyamina | |
| I.T.L. (PRODUCT TESTING) Ltd. | Lod | |
| IMQ S.p.A. | Milano | |
| Intertek Semko AB | Kista | |
| Intertek Testing Services (Singapore) Pte Ltd | Singapore | |
| Intertek Testing Services NA, Inc. | Arlington Heights | |
| Japan Quality Assurance Organization (JQA) | Tokyo | |
| Kiwa Nederland B.V. | | |
| LCIE | Fontenay-Aux-Roses | |
| NEMKO AS | Lysaker | |
| OVE | Vienna | |
| SGS Belgium N.V. - Division SGS-CEBEC | BRUSSEL | |
| SGS Fimko Ltd | Helsinki | |
| SII | TEL - AVIV | |
| SIQ - Slovenian Institute of Quality and Metrology | Ljubljana | |
| TUV Rheinland of North America, Inc. | Newtown | |
| TÜV Rheinland InterCert Kft., MEEI Division | Budapest | |
| TÜV Rheinland Japan Ltd. | Yokohama | |
| TÜV Rheinland LGA Products GmbH | Nürnberg | |
| TÜV SÜD PSB Pte. Ltd. | Singapore | |
| TÜV SÜD Product Service GmbH | München | |
| UL (CA) | Toronto | |
| UL (Demko) | Ballerup | |
| UL (US) | Northbrook | |
| VDE Prüf- und Zertifizierungsinstitut GmbH | Offenbach / Main | |
