| Entropy 1515764 · TMA832585 | an individual | 9 Electronics16 Paper25 Clothing+3 | Registered | 2012 |
| ENTROPY 1335546 · TMA705524 | INTERFACE INC. | 27 Carpets | Registered | 2008 |
| ENTROPY 1205536 · TMA696329 | an individual | 9 Electronics35 Advertising42 Science | Registered | 2007 |
| ENTRYPOINT 1777893 · TMA1000218 | Phoenix Software International, Inc. | 9 Electronics | Registered | 2018 |
| EntryPoint 1589114 · TMA881631 | Think Research Corporation | 9 Electronics38 Telecommunications39 Transport+1 | Registered | 2014 |
| ENTREMONT 1997073 · TMA1106524 | an individual | 29 Meat | Registered | 2021 |
| entrysync 1951401 · TMA1171816 | ENDURA PRODUCTS, LLC | 9 Electronics | Registered | 2023 |
| ENTRYIQ 1935065 · TMA1118762 | Therma-Tru Corp. | 6 Metal9 Electronics19 Building | Registered | 2022 |
| ENTRADA 1888425 · TMA1130161 | Entrada Therapeutics, Inc. | 5 Pharmaceuticals42 Science | Registered | 2022 |
| ENTRADA 1793178 · TMA1041484 | ADVONEX INTERNATIONAL CORP. | 1 Chemicals3 Cosmetics4 Oils | Registered | 2019 |
| ENTRON 1768049 · TMA979597 | Entron Controls, LLC | 9 Electronics | Registered | 2017 |
| ENTREPOSE 1709195 · TMA1258627 | an individual | 1 Chemicals6 Metal7 Machines+5 | Registered | 2024 |
| Entrymark 1568184 · TMA898072 | an individual | 9 Electronics35 Advertising42 Science | Registered | 2015 |
| ENTRYGARD 1552410 · TMA882837 | Friedrich Air Conditioning, LLC | 11 Lighting | Registered | 2014 |
| ENTREBAHN 1479068 · TMA802953 | Charco High Tech Inc. | 9 Electronics16 Paper35 Advertising+2 | Registered | 2011 |
| ENTREMONT 0783443 · TMA495333 · design | Owner not shown | 29 Meat | Registered | 1998 |
| ENTRÖLL 0780130 · TMA465236 · design | MEDTRONIC XOMED, INC. (a Delaware corporation) | 10 Medical | Registered | 1996 |
| ENTRYTAG 0666404 · TMA413843 | Brady Corporation Limited | 20 Furniture | Registered | 1993 |
| ENTRYGARD 0464023 · TMA263007 · design | TRUTH HARDWARE CORPORATION, (A DELAWARE CORPORATION) | 6 Metal | Registered | 1981 |
| Enturbo 2368712 | Owner not listed | 7 Machines | Pending | 2024 |
| Entropya 2319484 | an individual | 9 Electronics37 Construction42 Science | Pending | 2023 |
| ENTREPOSE 2305098 | an individual | 37 Construction39 Transport42 Science | Pending | 2024 |
| ENTREPID 2181710 | Encor Advisors Canada Ltd. | 16 Paper35 Advertising36 Finance+1 | Pending | 2022 |
| ENTRO 2093731 | Entro Communications Inc. | 35 Advertising41 Education42 Science | Pending | 2021 |
| ENDURAFLEX 2264016 · TMA1284793 | VALMONT INDUSTRIES, INC. | 19 Building | Registered | 2025 |