| ENTEROTEC 2143914 · TMA1215217 | Oil-Dri Corporation of America | 5 Pharmaceuticals | Registered | 2023 |
| ENTERIPURE 1659453 · TMA959347 | Natural Factors Nutritional Products Ltd. | 5 Pharmaceuticals | Registered | 2017 |
| ENTEROLERT 1397187 · TMA748598 | IDEXX LABORATORIES, INC. | 1 Chemicals | Registered | 2009 |
| ENTERMEDIC 2002013 · TMA1188054 | an individual | 9 Electronics35 Advertising42 Science | Registered | 2023 |
| ENTERRA 1931861 · TMA1122994 · design | Enterra Feed Corporation | 1 Chemicals3 Cosmetics4 Oils+3 | Registered | 2022 |
| ENTERRA 1914063 · TMA1122993 | Enterra Feed Corporation | 1 Chemicals3 Cosmetics4 Oils+3 | Registered | 2022 |
| ENDUROPRO 1821455 · TMA1021395 | MatMarket LLC | 25 Clothing | Registered | 2019 |
| ENTEROCUFF 1780735 · TMA1037042 | KEYMED (MEDICAL & INDUSTRIAL EQUIPMENT) LIMITED | 10 Medical | Registered | 2019 |
| ENTERISOL 1763390 · TMA1035707 · design | Boehringer Ingelheim Vetmedica GmbH | 5 Pharmaceuticals | Registered | 2019 |
| ENTREPOSE 1709195 · TMA1258627 | an individual | 1 Chemicals6 Metal7 Machines+5 | Registered | 2024 |
| Entropy 1515764 · TMA832585 | an individual | 9 Electronics16 Paper25 Clothing+3 | Registered | 2012 |
| ENTEROSGEL 1514510 · TMA835763 | an individual | 5 Pharmaceuticals | Registered | 2012 |
| ENTERMO 1421460 · TMA787064 · design | EnterMo Limited | 9 Electronics | Registered | 2011 |
| ENTERICARE 1379808 · TMA775348 | Patheon Softgels, Inc. | 5 Pharmaceuticals | Registered | 2010 |
| ENTROPY 1335546 · TMA705524 | INTERFACE INC. | 27 Carpets | Registered | 2008 |
| ENTERRA 1284260 · TMA685953 | DENTSPLY SIRONA Inc. | 10 Medical | Registered | 2007 |
| ENTEROVAX 1221110 · TMA690665 | Intervet Inc. | 5 Pharmaceuticals | Registered | 2007 |
| ENTROPY 1205536 · TMA696329 | an individual | 9 Electronics35 Advertising42 Science | Registered | 2007 |
| ENTERO 0894835 · TMA546809 | Quorum Business Solutions, Inc. | 9 Electronics | Registered | 2001 |
| ENTEROVU 0759509 · TMA458910 | E-Z-EM CANADA INC. | 5 Pharmaceuticals | Registered | 1996 |
| ENTERPHONE 0360957 · TMA192854 | Identiv, Inc. | 9 Electronics | Registered | 1973 |
| ENTEROTUBE 0333696 · TMA178335 | BECTON DICKINSON GmbH | 10 Medical | Registered | 1971 |
| "ENTROPHEN" 0206193 · UCA34521 | NORWELL CONSUMER HEALTHCARE INC. | 5 Pharmaceuticals | Registered | 1950 |
| ENTERION 2354884 | an individual | 5 Pharmaceuticals32 Beer41 Education | Pending | 2024 |
| Entropya 2319484 | an individual | 9 Electronics37 Construction42 Science | Pending | 2023 |