| CONFUNIS 2116861 · TMA1183039 · design | an individual | 18 Leather21 Housewares25 Clothing | Registered | 2023 |
| CONFINE 1324133 · TMA744238 | Winfield Solutions, LLC | 5 Pharmaceuticals | Registered | 2009 |
| CONFINA 0739070 · TMA448830 | Chocolat Alprose SA | 29 Meat30 Coffee33 Wine | Registered | 1995 |
| CONVINI 2353703 · design | an individual | 35 Advertising37 Construction39 Transport+1 | Pending | 2024 |
| CONVINI 2353702 · design | an individual | 35 Advertising37 Construction39 Transport+1 | Pending | 2024 |
| 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 |
| CAMPANION 2098726 · TMA1273935 | CampMinder, LLC | 9 Electronics42 Science | Registered | 2024 |
| CHENAPAN 2075261 · TMA1181462 | Cidrerie Milton inc. | 33 Wine | Registered | 2023 |