| Eidetic Communications, Inc. | |
| EIDNet | Alberta |
| Eidos Montréal | Quebec |
| EidoSearch | Ontario |
| Eigen Innovations | New Brunswick |
| Eight Leaves, Inc. | Alberta |
| Eightside Software Consulting, Inc. | British Columbia |
| EION Wireless | Ontario |
| EIWO Canadian Management Ltd | Ontario |
| Eizie | |
| eJust Systems, Inc. | Ontario |
| Ekaart Digital Systems | |
| EKHO Institute | Ontario |
| Ekhosoft | Quebec |
| eKKO Internet Marketing | Ontario |
| Ekkum, Inc. | Ontario |
| Eklore | |
| eLab, Inc. | Nova Scotia |
| élan Data Makers | British Columbia |
| Elan Multimedia | British Columbia |
| éLantec I.T. Consulting | |
| Elapse Technologies | Quebec |
| Elasta Link | Ontario |
| Elastic Email, Inc. | British Columbia |
| Elasticpath | British Columbia |
| Elastify, Inc. | Ontario |
| Elavon Canada Company | Ontario |
| Elco Systems | Ontario |
| Elcom Radio, Inc. | Quebec |
| Elective Group USA, Inc. | |
| Electra Communiations | Ontario |
| Electric Edge Systems Group, Inc. | British Columbia |
| Electric Mind | Ontario |
| Electric Mobility Canada | |
| Electric Pixel, Inc. | Quebec |
| Electric Playground | |
| Electro Cables, Inc. | Ontario |
| Electro Computer Warehouse | Ontario |
| Electro Sonic Group, Inc. | Ontario |
| Electro Source, Inc. | Ontario |
| Electro Tel | Alberta |
| Electro-5, Inc. | Quebec |
| Electro-Techno, Inc. | |
| Electrobac | Quebec |
| Électrocentre2000 | |
| Electrofed | Ontario |
| Electroline Equipment, Inc. | Quebec |
| ElectroMagneticWorks, Inc. | Quebec |
| Electromate Industrial Sales Ltd | Ontario |
| Electromike, Inc. | Quebec |