| ON COMMUNICATION 1686299 · TMA916883 | ON COMMUNICATION INC. | 35 Advertising41 Education | Registered | 2015 |
| SPARK COMMUNICATION 1707291 · TMA965886 | an individual | 41 Education | Registered | 2017 |
| COMMUNICATION LEADS 1558311 · TMA846746 | 631897 Alberta Ltd. | 9 Electronics16 Paper41 Education | Registered | 2013 |
| TOTAL COMMUNICATION 1062603 · TMA597879 | an individual | 41 Education | Registered | 2003 |
| ALPHA COMMUNICATION 2024569 | Melanie Layer Inc | 41 Education | Pending | 2020 |
| Communication. Evolved. 1863995 · TMA1070260 | Proximis Digital Inc. | 35 Advertising | Registered | 2020 |
| COMMUNICATION PSY COM 1711140 · TMA974939 | Communication Psycom inc. | 9 Electronics16 Paper41 Education | Registered | 2017 |
| Caliber Communication 1559300 · TMA913937 | an individual | 35 Advertising | Registered | 2015 |
| COMMUNICATION MATTERS 0782153 · TMA476275 | an individual | 35 Advertising41 Education42 Science | Registered | 1997 |
| COMMUNICATION CNW INC. 0668840 · TMA392799 | CNW Group Ltd. | 35 Advertising | Registered | 1992 |
| Communication is power 2022167 · TMA1132297 | Epik Contact Centers Inc. | 35 Advertising | Registered | 2022 |
| ORAVISOR COMMUNICATION 1632017 · TMA893842 · design | Owner not shown | 9 Electronics | Registered | 2015 |
| COMMUNICATION DIRECTOR 1588033 · TMA869602 | Forward Advantage, Inc. | 9 Electronics | Registered | 2014 |
| FACELESS COMMUNICATION 1508217 · TMA813407 | Progressive Communications Inc. | 35 Advertising41 Education45 Legal | Registered | 2011 |
| HOUSE OF COMMUNICATION 2010945 | Serviceplan Group SE & Co. KG | 35 Advertising36 Finance42 Science | Pending | 2020 |
| Communication Connectée 1904515 · TMA1173054 | an individual | 41 Education | Registered | 2023 |
| COMMUNICATION QUANTIQUE 1875012 · TMA1094669 | an individual | 16 Paper41 Education | Registered | 2021 |
| COMMUNICATION THERAPIST 0914879 | COLLEGE OF AUDIOLOGISTS AND SPEECH-LANGUAGE PATHOLOGISTS OF ONTARIO | All goods and services | Protected | 2003 |
| SAFETY IN COMMUNICATION 0704321 · TMA424157 | an individual | 37 Construction | Registered | 1994 |
| Genius of Communication 2058722 | an individual | 41 Education | Pending | 2020 |
| TOTAL CARE COMMUNICATION 1767195 · TMA960435 | COLUMBIA PRIVATE SECONDARY SCHOOL INC. | 41 Education43 Restaurants | Registered | 2017 |
| LA COMMUNICATION A COEUR 1654091 · TMA974281 | Canadian Association of Speech-Language Pathologists and Audiologists | 35 Advertising36 Finance41 Education+3 | Registered | 2017 |
| CA COMMUNICATION AERIALS 1467337 · TMA837944 · design | Shakespeare Monofilament UK Limited | 9 Electronics17 Rubber | Registered | 2012 |
| CT COMMUNICATION TABLETOP 1643354 · TMA1046941 · design | TOSHIBA TEC CORPORATION, a legal entity | 9 Electronics | Registered | 2019 |
| Photo-communication « wi-fi » 1591166 · TMA890759 | Henry's Enterprises Inc. | 9 Electronics14 Jewellery18 Leather+6 | Registered | 2014 |