| OPENSAFE 2131045 · TMA1239471 | SHOKZ HOLDING LIMITED | 10 Medical | Registered | 2024 |
| OPENSPACE 1702991 · TMA928586 | LOGIX ITS INC. | 9 Electronics19 Building | Registered | 2016 |
| OPENSTACK 1697565 · TMA975142 | OpenStack Foundation, a non-stock, non profit corporation | 35 Advertising41 Education | Registered | 2017 |
| OPENSHARE 1609719 · TMA893368 | ONCARD MARKETING, INC. DBA REVTRAX | 35 Advertising42 Science | Registered | 2015 |
| OpenScape 1178563 · TMA677483 | Unify Software and Solutions GmbH & Co. KG | 9 Electronics | Registered | 2006 |
| OPENSTORE 2133136 | Miami Labs, Inc. | 9 Electronics35 Advertising36 Finance+1 | Pending | 2021 |
| OPENSCALE 1965938 | INTERNATIONAL BUSINESS MACHINES CORPORATION | 9 Electronics35 Advertising42 Science | Pending | 2019 |
| OPENSESAME 2000812 · TMA1103809 | OPENSESAME INC. | 35 Advertising | Registered | 2021 |
| OPENACE 2152711 · TMA1241063 · design | SHOKZ HOLDING LIMITED | 9 Electronics | Registered | 2024 |
| OPENGATE 2118213 · TMA1162745 · design | Owner not shown | 9 Electronics | Registered | 2023 |
| OPENGATE 2116486 · TMA1161583 | Owner not shown | 9 Electronics | Registered | 2023 |
| OPENSEE 2106460 · TMA1268237 | OPENSEE | 9 Electronics35 Advertising36 Finance+1 | Registered | 2024 |
| OPENSEA 2099944 · TMA1201319 | Greensea Systems, Inc. | 9 Electronics | Registered | 2023 |
| OPENSEA 1945585 · TMA1223347 | Ozone Networks, Inc. | 35 Advertising42 Science | Registered | 2024 |
| OPENCARE 1894513 · TMA1106760 | Opencare Inc. | 35 Advertising42 Science | Registered | 2021 |
| OPENSURE 1771418 · TMA1032251 | Boston Scientific Scimed, Inc. | 10 Medical | Registered | 2019 |
| OPENSWAN 1559719 · TMA873857 · design | Xelerance Corporation | 9 Electronics42 Science | Registered | 2014 |
| OPENCASE 1429480 · TMA767947 | Synamedia Limited | 9 Electronics | Registered | 2010 |
| OPENGATE 1318926 · TMA706367 | OpenGate Investments Ltd. | 36 Finance37 Construction42 Science | Registered | 2008 |
| OPENSPARC 1304573 · TMA837815 | SPARC INTERNATIONAL, INC. | 9 Electronics16 Paper | Registered | 2012 |
| OPENAG 2195360 · design | UPL LTD. | 1 Chemicals5 Pharmaceuticals31 Fresh+1 | Pending | 2022 |
| OPENSERGO 2192648 | Alibaba Cloud (Singapore) Private Limited | 9 Electronics42 Science | Pending | 2022 |
| OpenCase 2192021 | BioSpark AI Technologies Inc. | 9 Electronics42 Science | Pending | 2022 |
| OPENSEA 2178940 | Ozone Networks, Inc. | 6 Metal9 Electronics14 Jewellery+10 | Pending | 2022 |
| OPENGATE 2059785 | WhiteHaven Holding Inc. | 35 Advertising36 Finance38 Telecommunications+2 | Pending | 2020 |