| Applicant country / location | Applicant | Certificate No | | | Issue date | Manufacturer | Apparatus | |
| 102 | Australia |  |
| 1 | Austria |  |
| 7 | Belgium |  |
| 25 | Canada |  |
| 32 | China |  |
| 1 | Czech Republic |  |
| 8 | Denmark |  |
| 5 | Finland |  |
| 26 | France |  |
| 272 | Germany |  |
| 7 | | ABB Automation Products GmbH |  |
| 5 | | aqua signal Aktiengesellschaft |  |
| 1 | | ATB Motorentechnik GmbH |  |
| 10 | | BARTEC GmbH |  |
| 2 | | Bürkert Werke GmbH & Co. KG |  |
| 1 | | Cooper-Crouse-Hinds GmbH |  |
| 6 | | COOPER CROUSE-HINDS GmbH |  |
| 1 | | Cooper Crouse-Hinds GmbH previously CEAG Sicherheitstechnik GmbH |  |
| 1 | | Cooper Crouse Hinds |  |
| 9 | | Cooper Crouse Hinds GmbH |  |
| 5 | | Dräger Safety AG & Co. KGaA |  |
| 1 | | ecom instruments GmbH |  |
| 9 | | Eickhoff Bergbautechnik GmbH |  |
| 1 | | Embigence GmbH |  |
| 3 | | Emerson Process Management GmbH & Co. OHG |  |
| 4 | | Emil A. Peters GmbH & Co. KG |  |
| 2 | | Endress + Hauser GmbH + Co. KG |  |
| 1 | | Endress + Hauser Wetzer GmbH + Co. KG |  |
| 7 | | Endress+Hauser GmbH+Co. KG |  |
| 1 | | Endress+Hauser GmbH+Co.KG |  |
| 2 | | FAFNIR GmbH |  |
| 2 | | FHF Funke + Huster Fernsig GmbH |  |
| 2 | | FLEXIM Flexible Industriemesstechnik GmbH |  |
| 2 | | Gecma Components GmbH |  |
| 1 | | GeDi Technik GmbH |  |
| 1 | | GfG Gesellschaft für Gerätebau mbH |  |
| 3 | | GfG Gesellschaft für Gerätebau mbH |  |
| 1 | | Hans Turck GmbH & Co KG |  |
| 7 | | Hans Turck GmbH & Co. KG |  |
| 1 | | Hummel AG, Geschäftsbereich ET |  |
| 1 | | Hydac Electronic GmbH |  |
| 4 | | ifm electronic GmbH |  |
| 1 | | Ing.-Büro JANSEN GmbH |  |
| 1 | | INTERTEC-Hess GmbH |  |
| 2 | | Kirchgaesser Industrieelektronik GmbH |  |
| 2 | | Knick Elektronische Messgeräte GmbH & Co. KG |  |
| 3 | | Krohne Messtechnik GmbH & Co. KG |  |
| 2 | | KROHNE Messtechnik GmbH & Co. KG |  |
| 1 | | Lutz Pumpen GmbH |  |
| 1 | | Magnet-Schultz GmbH & Co. KG |  |
| 1 | | Marco Systemanalyse & Entwicklung GmbH |  |
| 6 | | Motorola GmbH |  |
| 4 | | MSA AUER GmbH |  |
| 1 | | nass magnet GmbH |  |
| 1 | | Norgren GmbH |  |
| 1 | | NORKA GmbH & Co. KG |  |
| 3 | | Pepperl & Fuchs GmbH |  |
| 11 | | Pepperl + Fuchs GmbH |  |
| 4 | | Pepperl+Fuchs GmbH |  |
| 2 | | Phoenix Contact GmbH |  |
| 3 | | Phoenix Contact GmbH & Co KG |  |
| 13 | | Phoenix Contact GmbH & Co. KG |  |
| 2 | | Phoenix Contact GmbH & Co.KG |  |
| 1 | | Phoenix Contract GmbH & Co KG |  |
| 5 | | PRÜFTECHNIK Dieter Busch AG |  |
| 2 | | ROLEC Gehäuse-Systeme GmbH |  |
| 1 | | ROSE Systemtechnk GmbH |  |
| 7 | | ROSE Systemtechnik GmbH |  |
| 1 | | Rota Yokogawa GmbH & Co. KG |  |
| 4 | | R. STAHL HMI Systems GmbH |  |
| 20 | | R. STAHL Schaltgeräte GmbH |  |
| 1 | | R.STAHL Schaltgeräte GmbH |  |
| 2 | | SAMSON AG Mess- und Regeltechnik |  |
| 1 | | Schischek GmbH |  |
| 3 | | Schott Electronic Packaging GmbH |  |
| 1 | | SECATEC electronic GmbH |  |
| 1 | | Siemens |  |
| 11 | | Siemens AG |  |
| 1 | | Steute Schaltgeräte GmbH & Co. KG |  |
| 1 | | Steute Schaltgeräte GmbH & Co.KG |  |
| 1 | | Steute Schaltgeräte GmbH &Co. KG |  |
| 1 | | tecsis GmbH |  |
| 1 | | thuba Ltd. |  |
| 1 | | UNI-Geraete E. Mangelmann Elektrotechnische Fabrik GmbH |  |
| 25 | | VEGA Grieshaber KG |  |
| 4 | | WAGO Kontakttechnik GmbH & Co. KG |  |
| 1 | | Weidmuller Interface GmbH & Co |  |
| 3 | | Weidmuller Interface GmbH & Co KG |  |
| 1 | | Weidmüller Interface GmbH & Co. KG |  |
| 2 | | WIKA Alexander Wiegand GmbH & Co. KG |  |
| 7 | India |  |
| 2 | Ireland |  |
| 2 | Israel |  |
| 19 | Italy |  |
| 48 | Japan |  |
| 50 | Korea, Republic of |  |
| 1 | Latvia |  |
| 2 | New Zealand |  |
| 15 | Norway |  |
| 5 | Poland |  |
| 2 | Russian Federation |  |
| 4 | Singapore |  |
| 4 | South Africa |  |
| 1 | Spain |  |
| 16 | Sweden |  |
| 17 | Switzerland |  |
| 2 | Thailand |  |
| 6 | The Netherlands |  |
| 1 | Turkey |  |
| 322 | United Kingdom |  |
| 258 | United States of America |  |
| 1,263 | |  |