| 3millID | PD (Secure; OSDP Verified) | United States | September 2021 | |
| Alarm.com | PD (Secure; OSDP Verified) | | March 2022 | |
| Amag | ACU (PACS) | United Kingdom | July 2019 | |
| Arcules (division of Canon / Milestone) | ACU (PACS) | Japan | September 2019 | |
| Averics | ACU (PACS) | | July 2019 | |
| Avigilon (division of Motorola) | ACU (PACS) | United States | June 2019 | |
| Axis Communications (division of Canon) | ACU (PACS) | Japan | June 2019 | |
| Axtraxng | ACU (PACS) | | July 2019 | |
| Azure Access | ACU | United States | April 2019 | |
| Belden | Cable | United States | September 2021 | |
| Biosmart | PD (Bio) | | June 2019 | |
| Bosch | PD (Secure) | | September 2021 | |
| Bosch | ACU (PACS) | | January 2019 | |
| BQT Solutions | PD (Reader) | | June 2019 | |
| Brivo | ACU (PACS) | United States | April 2018 | |
| Brivo | PD (Secure; OSDP Verified) | | March 2022 | |
| CDVI | PD (Reader) | Canada | March 2020 | |
| CDVI | ACU (PACS) | | March 2022 | |
| CEM (division of Johnson Controls) | ACU | Ireland | February 2019 | |
| Chiyu Technology Co. Ltd | PD (Reader) | Taiwan | June 2019 | |
| CiVinTec | PD (Reader) | China | May 2019 | |
| Conlan | PD (non-reader) | Denmark | March 2019 | |
| Controlsoft | ACU (PACS) | | June 2019 | |
| Cypress Integration Solutions | PD (Secure; OSDP Verified) | United States | April 2019 | |
| Cypress Integration Solutions | ACU (Secure; OSDP Verified) | United States | April 2019 | |
| Dahua | PD (Reader) | China | May 2019 | |
| Deister | PD (Secure; OSDP Verified) | Germany | July 2019 | |
| Dirak | PD (Reader) | Germany | March 2020 | |
| Eye Lock | PD (Bio) | | June 2018 | |
| Farpointe (division of DormaKaba) | PD (Reader; OSDP Verified) | Switzerland | November 2018 | |
| Feenics | ACU (PACS) | United States | June 2018 | |
| Galaxy Control Systems | ACU (PACS) | | March 2022 | |
| Gallagher | ACU (PACS) | New Zealand | June 2019 | |
| Gallagher | PD (Reader) | New Zealand | November 2019 | |
| Genetec | ACU (PACS) | Canada | January 2019 | |
| Grosvenor | ACU (PACS) | United Kingdom | July 2019 | |
| Guard RFID Solutions | PD (Reader) | Canada | September 2019 | |
| HID (division of Assa Abloy) | PD (Reader; OSDP Verified) | Sweden | April 2019 | |
| Hikvision | ACU (PACS) | China | March 2019 | |
| Hikvision | PD | China | | |
| Honeywell | ACU (PACS) | | June 2019 | |
| Hundure Technology Company Ltd | Reader (PD) | Taiwan | June 2019 | |
| ID Enhancements | Reader (PD) | | June 2019 | |
| Identiv | Reader (PD) | United States | April 2017 | |
| Idesco | Reader (PD) | Finland | June 2019 | |
| INID | Reader (PD) | Netherlands | January 2015 | |
| Inner Range | Reader (PD) | | November 2018 | |
| Innometriks (division of JCI) | PD (Bio) | Ireland | July 2019 | |
| Integrated Control Technology Ltd | ACU (PACS) | | July 2019 | |
| ITK Security | Reader (PD) | Germany | May 2019 | |
| LAPB Systems | PACS (ACU) | Mexico | June 2019 | |
| LenelS2 (division of UTC Carrier) | PACS (ACU) | United States | April 2019 | |
| Maxxess | PACS (ACU) | United States | January 2019 | |
| Memory Systems | PACS (ACU) | | June 2019 | |
| Mercury Security (division of Assa Abloy / HID) | ACU (OSDP Verified) | Sweden | April 2019 | |
| Mercury Security (division of Assa Abloy / HID) | Non-Reader PD | Sweden | April 2015 | |
| Monitor Dynamics | PACS (ACU) | | June 2019 | |
| Morpho (division of Idemia) | Reader (PD Bio) | France | January 2017 | |
| Nedap | Reader (PD) | | January 2019 | |
| Nox Systems | PD (Reader) | Liechtenstein | November 2018 | |
| Open Options (division of ACRE) | ACU (PACS) | United States | June 2019 | |
| Paige Wireless | Cable | United States | September 2021 | |
| ProDataKey | ACU (PACS) | | March 2022 | |
| QuiAccess | PD (Reader) | Belgium | June 2019 | |
| RBH | PD (Reader) | Canada | November 2019 | |
| Rosslare | ACU (PACS) | | June 2019 | |
| RS2 (division of ACRE) | ACU (PACS) | United States | June 2019 | |
| Safetrust | PD (Secure; OSDP Verified) | | March 2022 | |
| Safetrust | PD (Secure; OSDP Verified) | United States | March 2022 | |
| Schlage (Allegion) | PD (Secure; OSPD Verified) | | July 2019 | |
| Security Engineering | PD (I/O) | Denmark | July 2019 | |
| Selea | PD (Non-reader) | Italy | November 2018 | |
| Sensurity | PD (Non-reader) | | May 2019 | |
| Sielox | ACU (PACS) | | March 2022 | |
| Software House (division of Johnson Controls) | ACU (PACS) | Ireland | August 2018 | |
| Stanley | PD (Reader) | | November 2018 | |
| STid | PD (Secure; OSDP Verified) | France | September 2021 | |
| Suprema | PD (Secure; OSPD Verified) | Korea, Republic Of | September 2021 | |
| Telcred | ACU (PACS) | | July 2019 | |
| Third Millenium | PD (Secure; OSDP Verified) | United Kingdom | September 2021 | |
| Unidentified Vendor 1 | | Russian Federation | April 2019 | |
| Unidentified Vendor 2 | | Russian Federation | April 2019 | |
| Unidentified Vendor 3 | | Russian Federation | April 2019 | |
| Vanderbilt Industries (division of ACRE) | PD (Reader) | United States | May 2019 | |
| Veridt | PD (Reader, Bio) | | January 2017 | |
| Virdi | PD (Bio) | | June 2019 | |
| Wavelynx | PD (Secure, XPM; OSDP Verified) | United States | September 2021 | |
| Windy City Wire | Cable | United States | September 2021 | |
| ZKTeco | PD (Secure) | | September 2021 | |
| ZKTeco | ACU (Secure) | | September 2021 | |
