| HEARTLI 2164259 · TMA1214460 | Ordervine Distribution Inc. | 3 Cosmetics5 Pharmaceuticals10 Medical | Registered | 2023 |
| HEARTLINE 1793160 · TMA1028445 | an individual | 16 Paper | Registered | 2019 |
| HEARTLOGIC 2349210 | CARDIAC PACEMAKERS, INC. | 10 Medical | Pending | 2024 |
| HEARTLINC 2320483 | 7871481 Canada Corp. | 10 Medical44 Medical | Pending | 2024 |
| HEARTLIFE 1961012 | HeartLife Foundation | 35 Advertising41 Education44 Medical+1 | Pending | 2019 |
| HEARTLAND 2256898 · TMA1276303 · design | VIACORE SOLUTIONS INC. | 7 Machines | Registered | 2024 |
| HEARTLAND 1818251 · TMA1065404 | Masonite International Corporation | 6 Metal19 Building | Registered | 2019 |
| HEARTLAND 1763000 · TMA967563 | Heartland Farm Mutual Inc. | 36 Finance | Registered | 2017 |
| HEARTLAND 1713250 · TMA936100 | Heartland Recreational Vehicles, LLC | 12 Vehicles | Registered | 2016 |
| HEARTLAND 1612035 · TMA926523 | Orchard Yarn and Thread Company, Inc. DBA Lion Brand Yarn Company | 23 Yarns | Registered | 2016 |
| HEARTLAND 1590993 · TMA860089 | BARKMAN CONCRETE LTD. | 19 Building | Registered | 2013 |
| HEARTLAND 1465393 · TMA843039 | Heartland Payment Systems, LLC | 9 Electronics35 Advertising36 Finance+2 | Registered | 2013 |
| HEARTLOOM 1451527 · TMA791331 | KeeperHoldings, Inc. (a New York corporation) | 25 Clothing | Registered | 2011 |
| HEARTLAND 1354352 · TMA868737 · design | American Italian Pasta Company | 30 Coffee | Registered | 2014 |
| HEARTLAND 1354350 · TMA868736 | American Italian Pasta Company | 30 Coffee | Registered | 2014 |
| HEARTLAND 1312074 · TMA702755 | Heartland Wines Pty Ltd | 33 Wine | Registered | 2007 |
| HEARTLAND 0844347 · TMA500958 | 324007 Alberta Ltd. | 35 Advertising | Registered | 1998 |
| HEARTLAND 0833887 · TMA490022 | NORTHLAND CORPORATION | 4 Oils11 Lighting | Registered | 1998 |
| HEARTLAND 0759594 · TMA447774 | GLOBERIDE, Inc. | 28 Toys | Registered | 1995 |
| HEARTLAND 0594821 · TMA347646 | CLARK & FREEMAN LLC | 25 Clothing | Registered | 1988 |
| heartily 2359947 | Heartily Cosmetics Inc. | 3 Cosmetics | Pending | 2024 |
| HEARTLAND 2150472 | Orlando Corporation | 35 Advertising36 Finance | Pending | 2021 |
| HEARTHEALTH 0906576 · design | Heart and Stroke Foundation of Canada | All goods and services | Protected | 1994 |
| HARDLINE 2045356 · TMA1160156 · design | Frank Walz- und Schmiedetechnik GmbH | 6 Metal7 Machines | Registered | 2023 |
| HARDLINES 1771624 · TMA974153 | an individual | 16 Paper35 Advertising41 Education | Registered | 2017 |