| Component Electronics, Inc. | Ontario |
| Comport Data | Quebec |
| Comprod | Quebec |
| Comprotel | Quebec |
| Compta Cloud | |
| ComptInfo | Quebec |
| Compton Cable TV Ltd | Ontario |
| Compu-Home | Ontario |
| Compu-Solve Technologies, Inc. | Ontario |
| Compu-Texte | Quebec |
| Compucom Solutions | British Columbia |
| Compucon Information Technologies, Inc. | British Columbia |
| Compudata | Ontario |
| Compudent Systems, Inc. | Ontario |
| CompuDone | Ontario |
| CompuEase | Ontario |
| Compuexcel Consulting and Software, Inc. | Ontario |
| CompuFix | Ontario |
| Compugen, Inc. | Ontario |
| Compulife Software, Inc. | Ontario |
| Compulite, Inc. | Ontario |
| Compulsion | Quebec |
| Compumatik | Quebec |
| Compunet Infotech, Inc. | British Columbia |
| CompuOffice Software, Inc. | Ontario |
| Compupoint, Inc. | Ontario |
| Compuran | British Columbia |
| Compuresource.ca | Ontario |
| CompuScribe Communication Design | British Columbia |
| Compusense | Ontario |
| Compuservice | Quebec |
| Compustar Networks | Ontario |
| CompuStep, Inc. | Ontario |
| Compusult Ltd | Newfoundland and Labrador |
| Computable Computer Services | |
| Computan | Ontario |
| Computation Ltd | Ontario |
| Computational Hydraulics Int. | Ontario |
| Compute Canada | Ontario |
| Compute Ontario | Ontario |
| Computech | New Brunswick |
| Computech Calgary | Alberta |
| CompuTech Computer Solutions | Ontario |
| Computer and Parts Direct, Inc. | Ontario |
| Computer Associates | Manitoba |
| Computer Blues | Manitoba |
| Computer Business Systems | Ontario |
| Computer Care Center | Ontario |
| Computer Castle | |
| Computer Central Canada, Inc. | Ontario |