| softwareQ, Inc. | Ontario |
| SoftwareReviews.com | |
| SoftwareSecured | Ontario |
| SoftwareShield | British Columbia |
| SoftwareWOW | |
| softWORKZ Innovation, Inc. | Quebec |
| Softworx Technology Group | Ontario |
| SoftXPro | |
| Sofutech | |
| Sofutech, Inc. | Quebec |
| Sogec | Quebec |
| Sogemyr Informatique, Inc. | Quebec |
| Sogenti, Inc. | Quebec |
| Sogetel, Inc. | Quebec |
| Sogi Informatique | Quebec |
| Sogi Informatique ltée | Quebec |
| Soho Diffusion, Inc. | Quebec |
| SOHO-PEI | Prince Edward Island |
| SohoIntelligence | Ontario |
| Sohoportal.com, Inc. | Ontario |
| Solabs | Quebec |
| Solace | Ontario |
| Solace Power, Inc. | Newfoundland and Labrador |
| Solacon, Inc. | Ontario |
| Solana Networks, Inc. | |
| Solantro Semiconductor Corporation | Ontario |
| Solar Digital | |
| Solara Data | |
| SolarIT Solutions | |
| SolarStream, Inc. | Alberta |
| Solaxis | |
| Soleica | Quebec |
| Solen Électronique, Inc. | Quebec |
| SoleWeb | Quebec |
| Solicorp | |
| Solid Innovation | Saskatchewan |
| Solid IT Solutions Vancouver, Inc. | British Columbia |
| Solid State AI | |
| SolidByte, Inc. | Quebec |
| SolidCAD | Ontario |
| SolidXperts | Quebec |
| Solik Technology, Inc. | Quebec |
| Solink Corporation | |
| Solipsist Studios | |
| Solist Technologies | Quebec |
| Solitek.com, Inc. | Ontario |
| Soljit | Quebec |
| Solmeg Technologies | Quebec |
| Solo Mobile | Quebec |
| Solo Vita Consulting | Ontario |