| ENERSOURCE 1086214 · TMA587110 | ALECTRA INC. | 35 Advertising37 Construction38 Telecommunications+4 | Registered | 2003 |
| ENERSOURCE 1083434 · TMA615052 · design | ALECTRA INC. | 35 Advertising36 Finance37 Construction+6 | Registered | 2004 |
| EnerServ 1750879 · TMA957719 | EnerServ, Inc. | 37 Construction42 Science | Registered | 2016 |
| ENERJUVE 1595284 · TMA912489 | Alticor Inc. | 3 Cosmetics | Registered | 2015 |
| ENERCARE 1489542 · TMA855275 | Enercare Inc. | 9 Electronics35 Advertising36 Finance+3 | Registered | 2013 |
| ENERSUL 0892060 · TMA528730 | Enersul Limited Partnership | 42 Science | Registered | 2000 |
| ENERSAVE 0900635 · design | DEPARTMENT OF ENERGY, MINES AND RESOURCES | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1978 |
| EnerGuard 1984656 · TMA1111283 | an individual | 11 Lighting | Registered | 2021 |
| ENERSAVER 1642785 · TMA938210 | Lifting Solutions Inc. | 4 Oils7 Machines9 Electronics+5 | Registered | 2016 |
| ENERSMART 1401377 · TMA801036 | Enbridge Gas Inc. | 35 Advertising37 Construction41 Education+1 | Registered | 2011 |
| ENERSMART 0728383 · TMA508732 · design | Enbridge Gas Inc. | 37 Construction42 Science | Registered | 1999 |
| ENERGUIDE 0909606 · design | HER MAJESTY THE QUEEN IN RIGHT OF CANADA, AS REPRESENTED BY THE MINISTER OF NATURAL RESOURCES, ACTING THROUGH THE ENERGY EFFICIENCY BRANCH OF THE DEPARTMENT OF NATURAL RESOURCES | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1998 |
| EnerGuide 0909605 | HER MAJESTY THE QUEEN IN RIGHT OF CANADA, AS REPRESENTED BY THE MINISTER OF NATURAL RESOURCES, ACTING THROUGH THE ENERGY EFFICIENCY BRANCH OF THE DEPARTMENT OF NATURAL RESOURCES | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1998 |
| ENERGERA 2047241 · TMA1148014 | ENERGERA INC. | 7 Machines9 Electronics | Registered | 2022 |
| Enersted 2046719 · TMA1221060 | Siemens Energy Global GmbH & Co. KG | 7 Machines9 Electronics11 Lighting+3 | Registered | 2024 |
| ENERGUM 1929391 · TMA1114485 | Yudhishter Sethi Vyser Inc. | 30 Coffee | Registered | 2021 |
| ENERGAGE 1926856 · TMA1106674 | Energage, LLC | 35 Advertising | Registered | 2021 |
| ENERSEAL 1919116 · TMA1094196 | Tremco CPG Inc. | 17 Rubber | Registered | 2021 |
| ENERJIVE 1878810 · TMA1083212 | 2666550 Ontario Limited | 29 Meat30 Coffee43 Restaurants+1 | Registered | 2020 |
| ENERGIR 1871624 · TMA1048595 · design | Owner not shown | 4 Oils35 Advertising37 Construction+3 | Registered | 2019 |
| ÉNERGIR 1814204 · TMA1055184 | Owner not shown | 4 Oils35 Advertising37 Construction+2 | Registered | 2019 |
| ENERGIZE 1784305 · TMA1104295 | ATP Nutrition Ltd. | 1 Chemicals | Registered | 2022 |
| ENERGIE 1741538 · TMA992384 · design | Bell Media Inc. | 9 Electronics35 Advertising38 Telecommunications+1 | Registered | 2018 |
| ÉNERGIE 1741537 · TMA992367 | Bell Media Inc. | 9 Electronics35 Advertising38 Telecommunications+1 | Registered | 2018 |
| ENERSOL 1734430 · TMA948470 | Enerchem International Inc. | 1 Chemicals | Registered | 2016 |