Newbridge Networks Corporation was an Ottawa, Ontario, Canada company founded by Welsh-Canadian entrepreneur Sir Terry Matthews.

It was founded in 1986 to create data and voice networking products after Matthews was forced out of his original company Mitel.

The company initially had innovative channelbank products, which allowed telcos with existing wiring to offer a wide variety of new services.

Newbridge also offered (for the time) the industry's most innovative network management (46020 NMS) and ISDN TAP 3500, RS-232C 3600 Mainstreet and ACC "river" routers (Congo/Amazon/Tigris etc.

), including distributed star-topology routing through both proprietary software over the unused facilities' data links in optical hardware and telco switches.