| COMPENSATIONPRO 1099468 · TMA576884 | DOW JONES & COMPANY, INC. | 35 Advertising | Registered | 2003 |
| COMPENSATOR 0766497 · TMA473734 | HANOVER ARCHITECTURAL PRODUCTS BUSINESS TRUST, A PENNSYLVANIA CORPORATION | 20 Furniture | Registered | 1997 |
| CombineMaster 1836799 · TMA1059133 | CONTINENTAL REIFEN DEUTSCHLAND GMBH | 12 Vehicles | Registered | 2019 |
| CombiMaster 1323324 · TMA698898 | an individual | 11 Lighting | Registered | 2007 |
| CONVENTIONWEST 0632931 · TMA402155 | Jazz Air LP | 39 Transport | Registered | 1992 |
| CONVENTIONAIR 0526557 · TMA303219 | CANADIAN AIRLINES INTERNATIONAL LTD. | 35 Advertising39 Transport | Registered | 1985 |
| COMPMETRICA 2330845 · TMA1269105 · design | COMPMETRICA INC. | 9 Electronics16 Paper35 Advertising+1 | Registered | 2024 |
| COMFYMOVE 2261010 · TMA1279542 | 1895968 Ontario Inc. | 39 Transport45 Legal | Registered | 2024 |
| COMPEONY 2257906 · TMA1276439 · design | Compeony BioTech Canada Ltd. | 3 Cosmetics29 Meat | Registered | 2024 |
| CHAMPION 2247872 · TMA1267220 | ABG-Champion LLC | 5 Pharmaceuticals | Registered | 2024 |
| ComfyNest 2240235 · TMA1259998 | an individual | 20 Furniture | Registered | 2024 |
| COMPANACARES 2222541 · TMA1212591 · design | Manna Pro Products, LLC | 43 Restaurants44 Medical | Registered | 2023 |
| COMBINED 2208163 · TMA1241593 · design | COMBINED INSURANCE COMPANY OF AMERICA | 9 Electronics35 Advertising36 Finance+1 | Registered | 2024 |
| COMBINATOR 2195287 · TMA1206686 | ReelPlay Pty Ltd | 9 Electronics41 Education | Registered | 2023 |
| CAMBOND 2191716 · TMA1234736 · design | HIEYOUNG INTERNATIONAL (HONG KONG) LIMITED | 21 Housewares | Registered | 2024 |
| COMPANACARES 2188273 · TMA1252354 · design | Manna Pro Products, LLC | 41 Education | Registered | 2024 |
| COMBINE 2183064 · TMA1230411 | CENTURY GROUP LANDS CORPORATION | 43 Restaurants | Registered | 2024 |
| Confonze 2182593 · TMA1230335 | an individual | 25 Clothing | Registered | 2024 |
| COMPANACARES 2180677 · TMA1252327 | Manna Pro Products, LLC | 41 Education | Registered | 2024 |
| COMPANACARES 2177885 · TMA1211305 | Manna Pro Products, LLC | 43 Restaurants | Registered | 2023 |
| CHAMPIONX 2173001 · TMA1280647 · design | ChampionX LLC | 1 Chemicals7 Machines35 Advertising+3 | Registered | 2025 |
| Cyanpink 2146742 · TMA1204077 | Shenzhen Meidasi Technology Co.,Ltd. | 9 Electronics | Registered | 2023 |
| CONFIANÇA 2143257 · TMA1243856 | Owner not shown | 3 Cosmetics | Registered | 2024 |
| CANBANTING 2128789 · TMA1255619 | TJIKKO INTERNATIONAL HOLDINGS LTD. | 5 Pharmaceuticals29 Meat30 Coffee+3 | Registered | 2024 |
| CONFUNIS 2116861 · TMA1183039 · design | an individual | 18 Leather21 Housewares25 Clothing | Registered | 2023 |