| ICE Health Systems | Alberta |
| Ice Wireless | Northwest Territories |
| Iceberg Networks Corporation | Ontario |
| IceChat Networks | British Columbia |
| IceFire Studios Corporation | Ontario |
| Icegate Solutions, Inc. | Ontario |
| ICES | |
| Icesoft Technologies | Alberta |
| IceWorks | |
| ICF Frimor | Quebec |
| ICGrafix | Alberta |
| ICI Innovations, Inc. | |
| Icicle Technologies, Inc. | British Columbia |
| iciSolutions | |
| ICIWeb | Quebec |
| iClic, Inc. | Quebec |
| ICO Technologies, Inc. | Quebec |
| Icom Canada | British Columbia |
| ICOM Productions | |
| iCompass Technologies, Inc. | British Columbia |
| iComply Investor Services, Inc. | |
| Icon E-Business Solutions | Ontario |
| icon1 Commuincation | Ontario |
| Icona | Alberta |
| Iconic Media | British Columbia |
| Iconica | Ontario |
| Iconnek.io | |
| Icono Informatique | |
| Iconoclaste | |
| Iconopower Ltd | Ontario |
| Icontek | |
| Icontek Corporation | |
| Icontext | British Columbia |
| iCreative Work | |
| Icron Technologies Corporation | British Columbia |
| ICS Creative Agency | New Brunswick |
| ICSPI Corporation | |
| ICT Network Systems, Inc. | |
| Ictnus | Ontario |
| ICUBE | Ontario |
| iCube Development (Calgary) Ltd | Alberta |
| iCubeMedia | New Brunswick |
| ICUC.Social | |
| ID Conception | |
| Id Élément Créatif | Quebec |
| ID Gatineau | |
| ID Logic | Quebec |
| ID Lynx | |
| ID-3 Technologies | Quebec |
| ID-GRAPH | Quebec |