| CanaTech 2185774 · TMA1231507 | GTA Sign Depot Inc | 7 Machines | Registered | 2024 |
| CONTECH 1806549 · TMA1012240 | an individual | 37 Construction | Registered | 2019 |
| CANTECH 1760854 · TMA980170 · design | INTERTAPE POLYMER INC. | 16 Paper17 Rubber22 Ropes+1 | Registered | 2017 |
| CYNTECH 0828494 · TMA499952 | Cyntech Tanks Ltd. | 6 Metal17 Rubber22 Ropes+2 | Registered | 1998 |
| CYNTECH 0828493 · TMA499950 · design | Cyntech Tanks Ltd. | 6 Metal17 Rubber22 Ropes+2 | Registered | 1998 |
| CANTECH 0319641 · TMA173999 | INTERTAPE POLYMER INC. | 5 Pharmaceuticals8 Hand17 Rubber+1 | Registered | 1971 |
| CENTECH 0907775 | an individual | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1996 |
| CANNATECH 1819792 · TMA1051283 | ICAN ISRAEL-CANNABIS LTD. | 41 Education | Registered | 2019 |
| CIMETECH 2256049 · TMA1237812 | Groupe Gestion Onsteel Inc. | 37 Construction42 Science | Registered | 2024 |
| CINtec 2042786 · TMA1107581 | Roche Diagnostics GmbH | 5 Pharmaceuticals42 Science | Registered | 2021 |
| CONTEC 1948626 · TMA1148335 · design | CONTEC MEDICAL SYSTEMS CO. LTD. | 10 Medical | Registered | 2022 |
| CANOTEC 1886513 · TMA1064550 · design | Canotec Hydraulic Equipment Co. Ltd. | 7 Machines9 Electronics12 Vehicles+2 | Registered | 2019 |
| COMTECH 1787334 · TMA997606 | COMPRESSION TECHNOLOGY CORPORATION | 4 Oils35 Advertising37 Construction+2 | Registered | 2018 |
| CHEMTECH 1653315 · TMA953414 | CHAUSSURES RÉGENCE INC. | 24 Textiles | Registered | 2016 |
| CINTEC 1643034 · TMA927850 | Cintec Reinforcement Systems Ltd. | 6 Metal12 Vehicles17 Rubber+4 | Registered | 2016 |
| COUNTEC 1642682 · TMA944868 · design | Countec Co. Ltd. Korean Corporation | 7 Machines | Registered | 2016 |
| CONTEC 1366039 · TMA745544 | NUTRIEN (CANADA) HOLDINGS ULC | 1 Chemicals | Registered | 2009 |
| CONTEC 1343357 · TMA747099 | NRW Anlagentechnik GmbH | 7 Machines11 Lighting | Registered | 2009 |
| CINtec 1073497 · TMA619658 | Roche Diagnostics GmbH | 5 Pharmaceuticals10 Medical42 Science | Registered | 2004 |
| CONTEC 0772189 · TMA456842 · design | CONTEC CO. LTD. | 5 Pharmaceuticals9 Electronics | Registered | 1996 |
| COUNTACH 0614775 · TMA425450 | an individual | 12 Vehicles | Registered | 1994 |
| COMTECH 2274105 · design | Comtech Telecommunications Corp. | 9 Electronics35 Advertising38 Telecommunications+1 | Pending | 2023 |
| COMETECH 2274098 | Comtech Telecommunications Corp. | 9 Electronics35 Advertising38 Telecommunications+1 | Pending | 2023 |
| CIMTECH 2224844 | CIMtech Mfg. Inc. | 9 Electronics40 Treatment42 Science | Pending | 2022 |
| cimetech 2199789 | Shenzhen Chunqiu Electronic Technology Co. Ltd. | 9 Electronics11 Lighting | Pending | 2022 |