| Symvivo Corporation | |
| SYN Hosting | Ontario |
| SYN Média | Quebec |
| Synapsis | British Columbia |
| Synaptive Medical | |
| Synaptive Medical | Ontario |
| Synaptive Technologies | British Columbia |
| Synaptix Learning Solutions | |
| Synaxiom | Quebec |
| Sync.com, Inc. | Ontario |
| Synced | Ontario |
| Synchronex | Quebec |
| SyncMedia | |
| Syncopate Media | Ontario |
| Syncsys Technology Solutions | |
| Syncup Technologies, Inc. | |
| Syndicate Digital Productions | British Columbia |
| Synditech Solutions | British Columbia |
| Syndrome Design | Ontario |
| Synergenics | Ontario |
| Synergie e-commerce | |
| Synergie Estrie | |
| Synergie Médicale | Quebec |
| Synergie Secure | Quebec |
| Synergize | |
| Synergized Solutions | Ontario |
| Synergo Group | Ontario |
| Synergy Group, Inc. | |
| Synergy IT Solutions, Inc. | Ontario |
| Synergy Lab, Inc. | |
| Synergy Networx | Ontario |
| SynergyPro Solutions | Ontario |
| Synerion | Ontario |
| Synertic Canada, Inc. | Quebec |
| Synet Computer, Inc. | British Columbia |
| Synetic, Inc. | British Columbia |
| Synex Medical | Ontario |
| SYNG Pharmaceuticals | |
| Synic Software | |
| SYNKRO | |
| Synkun, Inc. | |
| Synode | |
| Synode, Inc. | |
| Synova Group | Nova Scotia |
| Synovatec, Inc. | Quebec |
| Synovus Solutions, INc. | |
| SYNQ Technologies | |
| Syntact | New Brunswick |
| Syntax Strategic | |
| Syntax Systems Ltd | Quebec |