| DESIGN360 1923647 · TMA1126585 | Phase 5 Consulting Group Inc. | 35 Advertising | Registered | 2022 |
| DECISION 1876740 · TMA1048033 | BILLY GRAHAM EVANGELISTIC ASSOCIATION | 16 Paper | Registered | 2019 |
| DÉCISIONNEX 1757055 · TMA976950 | ROYAL BANK OF CANADA | 36 Finance | Registered | 2017 |
| DECISION 1453297 · TMA821872 | an individual | 28 Toys | Registered | 2012 |
| DECISION 1230654 · TMA665436 | Canada Bread Company, Limited | 30 Coffee | Registered | 2006 |
| DECISIONONE 0800232 · TMA511793 | DECISIONONE CORPORATION, (A DELAWARE CORPORATION) | 35 Advertising37 Construction42 Science | Registered | 1999 |
| DECISION 0467596 · TMA271460 | ROTHMANS, BENSON & HEDGES INC. | 34 Tobacco | Registered | 1982 |
| DecisionX 1974488 | SATAVIA Limited | 9 Electronics35 Advertising37 Construction+1 | Pending | 2019 |
| DECISIONWISE 1692892 · TMA985695 | 8646767 CANADA INC. | 35 Advertising41 Education | Registered | 2017 |
| DECISIONEDGE 1657150 · TMA955920 | Trans Union LLC | 38 Telecommunications | Registered | 2016 |
| DecisionMade 2293823 | CedarHill Immigration Consulting Inc. | 45 Legal | Pending | 2023 |
| DECISIONVAULT 2179678 · TMA1272572 | DecisionVault LLC | 42 Science | Registered | 2024 |
| DECISIONPOINT 1841673 · TMA1021636 | Mitchell International, Inc. | 9 Electronics42 Science | Registered | 2019 |
| DECISIONSENSE 1550237 · TMA845022 | Cargill, Incorporated | 9 Electronics16 Paper35 Advertising+1 | Registered | 2013 |
| DECISIONSMART 1269552 · TMA677154 | Nielsen Consumer LLC | 9 Electronics42 Science | Registered | 2006 |
| DECISIONTOWER 2282078 | Owner not listed | 7 Machines | Pending | 2023 |
| DECISIONQUEST 2279979 | Owner not listed | 42 Science | Pending | 2023 |
| DECISIONSCAPES 1723611 · TMA994567 | INTERNATIONAL DATA GROUP, INC. | 9 Electronics35 Advertising38 Telecommunications+2 | Registered | 2018 |
| DECISIONCENTRE 1387001 · TMA758236 | TransUnion LLC | 36 Finance45 Legal | Registered | 2010 |
| DECISIONSOURCE 1358565 · TMA751268 | BCD Travel USA LLC | 35 Advertising | Registered | 2009 |
| DECKSIGN 1929315 · TMA1165130 | PARAGON FACTION INC. | 42 Science | Registered | 2023 |
| Design 2259367 · TMA1277898 · design | Shanghai Kings Sea Cucumber, Co,Ltd. | 29 Meat | Registered | 2024 |
| Design 2256819 · TMA1277656 · design | Somnoplus Inc. | 20 Furniture24 Textiles35 Advertising | Registered | 2024 |
| Design 2256261 · TMA1254238 · design | Owner not listed | 43 Restaurants | Registered | 2024 |
| DESIGNFILES 2255587 · TMA1276167 | Olioboard.com Interactive Inc. | 42 Science | Registered | 2024 |