| SEMES 2251533 · TMA1267473 · design | HENAN TIANJI TYRE CO. LTD | 12 Vehicles | Registered | 2024 |
| SEMEX 1906755 · TMA1099775 | SEMEX INC. | 20 Furniture | Registered | 2021 |
| SEMEX 0863108 · TMA507608 | an individual | 1 Chemicals5 Pharmaceuticals31 Fresh+2 | Registered | 1999 |
| SENECA 2298464 · TMA1278010 | The Seneca College of Applied Arts and Technology | 9 Electronics14 Jewellery16 Paper+8 | Registered | 2024 |
| symex 2162654 · TMA1271062 | symex GmbH & Co. KG | 7 Machines | Registered | 2024 |
| SENECA 1542701 · TMA885989 | Genrep Ltd./Ltee | 7 Machines | Registered | 2014 |
| SEMiX 1413622 · TMA815853 | SEMIKRON Elektronik GmbH & Co. KG | 9 Electronics | Registered | 2012 |
| SUMEX 1342753 · TMA719109 | Stryker Corporation a Michigan corporation | 10 Medical | Registered | 2008 |
| SENECA 1340273 · TMA715184 | GRAND RIVER ENTERPRISES SIX NATIONS LTD. | 34 Tobacco | Registered | 2008 |
| SAMES 1332327 · TMA744848 | an individual | 7 Machines9 Electronics35 Advertising+6 | Registered | 2009 |
| Sensa 1254795 · TMA728502 | Owner not shown | 20 Furniture | Registered | 2008 |
| SeMSy 1189299 · TMA675102 | Dallmeier Electronic GmbH & Co. KG | 9 Electronics35 Advertising42 Science | Registered | 2006 |
| SENECA 1173653 · TMA646155 | SENECA FOODS CORPORATION | 29 Meat | Registered | 2005 |
| SENSA 1080010 · TMA606500 | SENSOR HIGHWAY LTD. | 9 Electronics37 Construction | Registered | 2004 |
| SENECA 0863635 · TMA506392 · design | SENECA FOODS CORPORATION, A NEW YORK CORPORATION | 29 Meat | Registered | 1999 |
| SENSA 0842287 · TMA493370 | SENSA, INC. | 5 Pharmaceuticals | Registered | 1998 |
| SIMEX 0757296 · TMA459318 | SIMEX INC. | 1 Chemicals5 Pharmaceuticals9 Electronics+4 | Registered | 1996 |
| SENECA 0474254 · TMA290913 · design | SENECA FOODS CORPORATION | 29 Meat32 Beer | Registered | 1984 |
| SEMS 0292549 · TMA151362 | ILLINOIS TOOL WORKS INC. | 10 Medical11 Lighting | Registered | 1967 |
| SEMAS 2240027 · design | Hydrogen Vehicle Systems Ltd | 9 Electronics42 Science | Pending | 2022 |
| SENECA 2181055 | FlowPatterns | 9 Electronics35 Advertising42 Science | Pending | 2022 |
| SENESS 2145206 · design | Altemaya Distribution Inc. | 3 Cosmetics26 Sewing | Pending | 2021 |
| SEMIOS 2095859 | SemiosBio Technologies Inc. | 5 Pharmaceuticals9 Electronics35 Advertising+4 | Pending | 2021 |
| SENECA 0914854 · design | The Seneca College of Applied Arts and Technology | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2004 |
| SENECA 0912904 | Seneca College of Applied Arts & Technology | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2001 |