Monitored products GHMT PREMIUM Verification Program
| company | |
participant since |
| 3M Deutschland GmbH | monitored products | Jun. 2021 |
| Amadys Telecom Germany GmbH | monitored products | June 2016 |
| Assmann Electronic GmbH | monitored products | Sep. 2019 |
| CobiNet Fernmelde- und Datennetzkomponenten GmbH | monitored products | April 2012 |
| CommScope Inc. | monitored products | Feb. 2013 |
| Corning Optical Communications GmbH & Co.KG | monitored products | July 2005 |
| Dätwyler IT Infra GmbH | monitored products | March 2005 |
| Datwyler (Suzhou) IT Infra Co., Ltd. | monitored products | June 2019 |
| DIAMOND GmbH | monitored products | Jan. 2006 |
| Draka Comteq Germany GmbH & Co. KG | monitored products | July 2012 |
| dtm Datentechnik Moll GmbH | monitored products | Nov. 2008 |
| EFB Elektronik GmbH | monitored products | Oct. 2016 |
| eku Kabel & Systeme GmbH & Co. KG | monitored products | Mai 2014 |
| FOC – fibre optical components GmbH | monitored products | Mai 2012 |
| HCS - HES Cabling Systems | monitored products | Jun. 2018 |
| HUBER+SUHNER GmbH | monitored products | Jan. 2006 |
| JYH Eng Technology Co. Ltd. | monitored products | Feb. 2021 |
| KERPEN DATACOM GmbH | monitored products | March 2005 |
| METZ CONNECT GmbH | monitored products | Mai 2007 |
| REÇBER KABLO A.Ş | monitored products | Sep. 2019 |
| Reichle & De Massari GmbH | monitored products | Apr. 2005 |
| Rosenberger-OSI GmbH & Co. OHG | monitored products | Nov. 2005 |
| The Siemon Company Ltd | monitored products | Nov. 2020 |
| Telegärtner Karl Gärtner GmbH | monitored products | Jan. 2008 |
| TKM Telekommunikation und Elektronik GmbH | monitored products | Nov. 2008 |
| VOKA GmbH | monitored products | Nov. 2019 |
| WEINERT Fiber Optics GmbH | monitored products | Nov. 2022 |
| ZVK GmbH Business Unit EasyLan® | monitored products | June 2013 |