As Brendan Mentioned, Kanata North used to be the Silicon Valley North, where all the telecom and chip manufacturer had there research department. Just name a few there is Cisco, Ericsson, Huawei, Nokia, Juniper in telecom field. It is a increasingly growing in pure software sector recently, which involved multimedia, big data, cybersecurity.
Downtown Ottawa has Shopify HQ, and surprisingly has a good amount of start up company. Gaming studio is a good place for software developer here in Ottawa as well.