| 7Geese | British Columbia |
| 7itsolutions | |
| 7shifts | Saskatchewan |
| 7Square | |
| 80Elements | British Columbia |
| 8760 Expense Management | |
| 8Brains | Quebec |
| 8P Design | Quebec |
| 90 Degrees | Quebec |
| 911 Maxim Studios | Ontario |
| 999 Art Direction | Ontario |
| 9thCO | Ontario |
| @NS | Nova Scotia |
| A Laptop Shoppe | Alberta |
| A Plus Digital | Quebec |
| A Plus Digital Computer Sales & Services | British Columbia |
| A Thinking Ape | British Columbia |
| A Very Good Website, Inc. | |
| A&A Computers, Inc. | Alberta |
| A&A Software Solutions Ltd | British Columbia |
| A&G Creative Group | British Columbia |
| A&L Computer Software Ltd | Ontario |
| A&O Systems Group | Ontario |
| A&W Internet | Manitoba |
| A-1 Electronics Ltd | Newfoundland and Labrador |
| A-1 Security Systems and Communications, Inc. | Ontario |
| A-Computers | Alberta |
| A-Power Computer Ltd | British Columbia |
| A-Prompt Project | Ontario |
| A-Sys Technologies | Quebec |
| A-Tech Electronics | Alberta |
| A-Z Computer Services | Ontario |
| A. J. Lill Consultants | Ontario |
| A.C. Riley Communications | Quebec |
| A.C.T. London | Ontario |
| A.D. Morrisn & Associates Ltd | Ontario |
| A.I. VALI, Inc. | |
| A.K.A. New Media, Inc. | Ontario |
| A.Net Solutions | Quebec |
| A.P. Computers, Inc. | Ontario |
| A.R. Gray & Associates | Quebec |
| A.R.C. Informatique | Quebec |
| A.S.N., Inc. | Quebec |
| A.U.G. Signals Ltd | Ontario |
| A.Y. Technologies, Inc. | |
| A1 Design, Inc. | Ontario |
| A1 Laptop | Nova Scotia |
| A100 | Alberta |
| A2aweb | |
| A2Z Design | Ontario |