| Yann Toledano | Quebec |
| YannickWEB.net | Quebec |
| Yapla | |
| Yaplex | Ontario |
| Yardstick | Alberta |
| Yardstick Services | British Columbia |
| Yarmouth International Airport | |
| Yaroka Technologies | Quebec |
| Yas | Saskatchewan |
| YAS Media | |
| Yasna, Inc. | Ontario |
| Yatiken Software Solutions | |
| YBIMC | |
| yBOT | Ontario |
| YDTS Canada | |
| YDX Innovation | |
| YEG Digital | Alberta |
| YEGTEL Communications, Inc. | |
| Yellow Environmental, Inc. | |
| Yellow Pages | Quebec |
| Yellow Pencil, Inc. | Alberta |
| Yellow Square IT | |
| Yenius Interactive Marketing | Ontario |
| Yerrex.com | Ontario |
| Yes Tech | |
| YesAdvertising.com, Inc. | Ontario |
| Yesbit | |
| Yesterday Design Co. Ltd | |
| YG-1 | |
| YGen Development | Alberta |
| YHC Environnement | Quebec |
| Yield Communications | Newfoundland and Labrador |
| YieldWise, Inc. | Ontario |
| yiyaniQ | |
| YM Design Factory | Quebec |
| YNBTECH | |
| Yng Online, Inc. | British Columbia |
| Yo! No Code | |
| YOApress | |
| Yocale Network Corporation | British Columbia |
| Yogo POS | |
| Yolo Ventures | |
| Yoomweb.com | Quebec |
| Yopie.ca | |
| York Angel Investors | Ontario |
| York Consulting, Inc. | Ontario |
| York Digital | |
| York Entrepreneurship Development Institute | Ontario |
| York University - Department of Electrical Engineering & Computer Science | Ontario |
| York University - Department of Mathematics and Statistics | Ontario |