| Social Spike Marketing Group | |
| Social Venture Circuit | |
| Social Web Media | |
| SocialHippo, Inc. | Ontario |
| Sociallogical | |
| Socially Correct | |
| SociallyInfused Media | |
| SocialOomph.com | New Brunswick |
| SocialSquared | |
| SocialWeb | Quebec |
| Societ | |
| Société d'informatique Multi-Solutions | Quebec |
| Société de développement et la SADC du Témiscamingue | |
| Société des arts technologiques | Quebec |
| Société des designers graphiques du Québec | Quebec |
| Société informatique amateur de Québec, Inc. | Quebec |
| SociéTIC | Quebec |
| Society for Canadian Women In Science and Technology | British Columbia |
| Society of Cable Telecommunications Engineers Ontario Chapter | Ontario |
| Society of Computing & Information Science | Ontario |
| Society of Internet Professionals | Ontario |
| Sockit Solution | Ontario |
| Socrative | Alberta |
| SOCVault | |
| SODA | Quebec |
| Soda PDF | |
| Sodagorn Media | Ontario |
| Sofdesk | Quebec |
| SOFI de Télémédic | Quebec |
| Soft ERP | Quebec |
| Soft Flow | Quebec |
| Soft Gravity | Ontario |
| Soft I.D., Inc. | Quebec |
| Soft Medianet Consultants, Inc. | Ontario |
| Soft Sage Ltd | |
| Soft Tech Cube | |
| Soft-haus Solutions | British Columbia |
| Softac Systems Ltd | |
| SoftActivity | British Columbia |
| Softalgo | Ontario |
| Softazur | Quebec |
| Softbec, Inc. | |
| SoftBit IT Solutions | |
| SoftByte Laboratory, Inc. | Manitoba |
| SoftCare EC, Inc. | British Columbia |
| Softchoice | Ontario |
| Softcinch | British Columbia |
| Softcoded | Ontario |
| Softconcept Canada, Inc. | Quebec |
| Softcorp Media | British Columbia |