| SIDOOR 1291843 · TMA736908 | an individual | 9 Electronics | Registered | 2009 |
| SIDR 1727095 · TMA947633 | Nazo Products Inc. | 30 Coffee | Registered | 2016 |
| //SIDER 1635966 · TMA918955 | Alithya Canada Inc. | 9 Electronics35 Advertising42 Science | Registered | 2015 |
| SITOR 1354424 · TMA718788 | an individual | 9 Electronics | Registered | 2008 |
| SEDOR 1189296 · TMA675103 · design | Dallmeier Electronic GmbH & Co. KG | 9 Electronics35 Advertising42 Science | Registered | 2006 |
| SIDERO 2165496 · TMA1241115 | Sidero Labs, Inc. | 9 Electronics41 Education42 Science | Registered | 2024 |
| SUITOR 1930679 · TMA1128106 | Siga International, a partnership consisting of M. Lucas International Holdings Inc., 2012605 Ontario Inc., 2012606 Ontario Inc. and 2012607 Ontario Inc. | 25 Clothing | Registered | 2022 |
| SIDURI 1770872 · TMA984118 | Jackson Family Farms, LLC | 33 Wine | Registered | 2017 |
| SITOUR 1110976 · TMA593597 | Sitour Marketing GmbH | 6 Metal9 Electronics16 Paper+6 | Registered | 2003 |
| SITOUR 0482317 · TMA276261 · design | Sitour Marketing GmbH | 6 Metal9 Electronics12 Vehicles+1 | Registered | 1983 |
| SADOER 2326294 | an individual | 3 Cosmetics | Pending | 2024 |
| SIDARA 2321349 | Dar Al-Handasah Consultants Shair and Partners Holdings Ltd. (United Arab Emirates private company) | 35 Advertising37 Construction39 Transport+1 | Pending | 2024 |
| SIDARA 2321324 · design | Dar Al-Handasah Consultants Shair and Partners Holdings Ltd. (United Arab Emirates private company) | 35 Advertising37 Construction39 Transport+1 | Pending | 2024 |
| SIDRA 2235164 · TMA1271246 | Owner not shown | 3 Cosmetics5 Pharmaceuticals | Registered | 2024 |
| SDTR 2160343 · TMA1211096 | Jewelry IP, LLC | 14 Jewellery | Registered | 2023 |
| STÓR 1846797 · TMA1023776 | Stor Jewelry Corporation | 14 Jewellery | Registered | 2019 |
| SEDAR 1666996 · TMA947976 | Alberta Securities Commission | 9 Electronics35 Advertising38 Telecommunications+1 | Registered | 2016 |
| SADAR 1634626 · TMA919929 | an individual | 33 Wine | Registered | 2015 |
| SDR 1442960 · TMA772620 | DENTSPLY SIRONA Inc. | 5 Pharmaceuticals | Registered | 2010 |
| SODIR 0858253 · TMA525424 | an individual | 11 Lighting | Registered | 2000 |
| SEDAR 0779072 · TMA474211 | Alberta Securities Commission | 9 Electronics38 Telecommunications40 Treatment | Registered | 1997 |
| STOR 2307035 · design | an individual | 21 Housewares | Pending | 2024 |
| SDR 2305429 · design | Sunday Red, LLC | 9 Electronics18 Leather24 Textiles+3 | Pending | 2024 |
| SADAR 2283551 | Laconic Infrastructure Partners Inc. | 9 Electronics42 Science | Pending | 2023 |
| SEDAR+ 1998740 · design | Alberta Securities Commission | 36 Finance38 Telecommunications41 Education+2 | Pending | 2019 |