| EXtand 1817690 · TMA1033488 | AAUXX KOREA Co., LTD. | 9 Electronics12 Vehicles20 Furniture | Registered | 2019 |
| EXTAN 1478785 · TMA851126 | an individual | 1 Chemicals5 Pharmaceuticals42 Science+1 | Registered | 2013 |
| EXTANE 0992000 · NFLD2000 | STANCO INCORPORATED (A DELAWARE CORPORATION) | 3 Cosmetics4 Oils | Registered | 1933 |
| EXTEND 2208226 · TMA1272663 · design | Extend, Inc. | 9 Electronics35 Advertising36 Finance+1 | Registered | 2024 |
| EXTON 2106699 · TMA1157551 | Exton Advisors Limited | 36 Finance | Registered | 2022 |
| ESTANE 1964057 · TMA1250453 | Lubrizol Advanced Materials, Inc. | 17 Rubber22 Ropes | Registered | 2024 |
| EXTEND 1843016 · TMA1077250 | BISSELL Inc. | 7 Machines | Registered | 2020 |
| EXTENS 1725301 · TMA952659 | SICPA HOLDING SA | 9 Electronics35 Advertising40 Treatment+2 | Registered | 2016 |
| ECTANE 1510853 · TMA863507 · design | Eddyfi Canada Inc. | 7 Machines9 Electronics35 Advertising+1 | Registered | 2013 |
| ECTANE 1498078 · TMA863500 | Eddyfi Canada Inc. | 7 Machines9 Electronics35 Advertising+1 | Registered | 2013 |
| EXTON 1282922 · TMA681860 | LES PLASTIQUES EXTON INC. | 17 Rubber | Registered | 2007 |
| ESTANE 0315560 · TMA166653 | Lubrizol Advanced Materials, Inc. | 1 Chemicals | Registered | 1969 |
| EXTEND 2341619 | an individual | 9 Electronics | Pending | 2024 |
| EXTEND 2279740 | VELCERA, LLC | 5 Pharmaceuticals | Pending | 2023 |
| EXTEND 2277856 | Eclairage Axis Inc. | 11 Lighting | Pending | 2023 |
| ECOTANK 1902370 · TMA1088653 · design | Seiko Epson Kabushiki Kaisha (also trading as Seiko Epson Corporation). | 2 Paints9 Electronics | Registered | 2020 |
| ESTWING 1619441 · TMA931011 · design | ESTWING MANUFACTURING COMPANY, INC. | 8 Hand | Registered | 2016 |
| EXTENSO 1491485 · TMA806460 | Sednove inc. | 9 Electronics42 Science | Registered | 2011 |
| ExteNET 1437768 · TMA880787 | Wyeth LLC a Delaware limited liability company | 42 Science | Registered | 2014 |
| Extendo 1361878 · TMA771027 | Hengstler GmbH | 9 Electronics35 Advertising37 Construction+1 | Registered | 2010 |
| ESTWING 1337499 · TMA713048 · design | ESTWING MANUFACTURING COMPANY, INC. | 8 Hand | Registered | 2008 |
| EXTENSA 1327199 · TMA770504 | Toyo Tire Corporation | 12 Vehicles | Registered | 2010 |
| EXTENSA 1026610 · TMA545079 | Fortune Brands Water Innovations LLC | 11 Lighting | Registered | 2001 |
| EXTENZO 1000922 · TMA533099 | an individual | 17 Rubber19 Building35 Advertising | Registered | 2000 |
| EXTENSA 0793060 · TMA531903 | ACER INCORPORATED | 9 Electronics | Registered | 2000 |