| STACK 1898522 · TMA1202094 | Spay, Inc. | 9 Electronics35 Advertising41 Education+1 | Registered | 2023 |
| STACK 1801377 · TMA1078348 | Credit Sesame Canada Inc. | 35 Advertising36 Finance41 Education+1 | Registered | 2020 |
| STACK 1743980 · TMA999036 | Stack Brewing Corp. | 16 Paper21 Housewares24 Textiles+4 | Registered | 2018 |
| STACK 1542241 · TMA873210 | an individual | 3 Cosmetics | Registered | 2014 |
| STACK 1418034 · TMA791974 | Auto Meter Products, Inc. an Illinois corporation | 9 Electronics | Registered | 2011 |
| STACK 1409678 · TMA779723 | DCWV Acquisition Corporation | 16 Paper | Registered | 2010 |
| STACK 2361131 · design | Stack Modular Structures Ltd. | 6 Metal19 Building35 Advertising+2 | Pending | 2024 |
| STACK 2350760 | Owner not listed | 36 Finance | Pending | 2024 |
| STACK 2350759 · design | Owner not listed | 36 Finance | Pending | 2024 |
| STACK 2161742 · design | SC Partners Ltd. | 36 Finance | Pending | 2022 |
| V-STACK 2005630 · TMA1269342 | Sound Seal, Inc. | 19 Building | Registered | 2024 |
| I-STACK 2000515 · TMA1260576 | NATIONAL ENVIRONMENTAL PRODUCTS LTD. | 11 Lighting | Registered | 2024 |
| STACK'D 1787786 · TMA981731 | Stack'd Consulting Inc. | 35 Advertising | Registered | 2017 |
| E-STACK 1520349 · TMA874703 | BREATHING BUILDINGS LIMITED | 6 Metal7 Machines9 Electronics+3 | Registered | 2014 |
| Z-STACK 2318399 | SafeSmart LLC | 6 Metal | Pending | 2024 |
| STACK'MS 1624584 · TMA893084 · design | CHAPIN MANUFACTURING, INC. | 31 Fresh | Registered | 2014 |
| STACK-ON 1384537 · TMA745340 | STACK-ON PRODUCTS CO. | 6 Metal16 Paper20 Furniture | Registered | 2009 |
| STACK UP 1383477 · TMA784525 | an individual | 37 Construction42 Science | Registered | 2010 |
| NO-STACK 0858209 · TMA535958 | MacNeil IP LLC | 17 Rubber | Registered | 2000 |
| Stack-Its 2234455 · TMA1251557 | CBD Consolidated LLC | 20 Furniture | Registered | 2024 |
| STACK-CUP 1580457 · TMA885910 · design | Stack Corporation BVBA | 21 Housewares | Registered | 2014 |
| STACK + FIT 1550618 · TMA840246 | Martha Stewart Living Omnimedia, LP | 16 Paper | Registered | 2013 |
| FUN STACK 1446228 · TMA769146 | KELLOGG EUROPE TRADING LIMITED | 29 Meat | Registered | 2010 |
| ECO-STACK 1389629 · TMA761908 | Bos Holdings Inc. | 17 Rubber | Registered | 2010 |
| Sear Stack 2112390 · TMA1180631 | DrumBo Ltd. | 11 Lighting | Registered | 2023 |