Sheffield-based Plusnet might be best known for its straight-talking Yorkshire-themed TV adverts.
The broadband, TV and mobile provider founded in 1997 by Lee Strafford – who has since exited – is a giant in the area and was named 2018’s Which? Recommended Provider for TV and Broadband bundles.
It was floated on the Alternative Investment Market in 2004 and in 2007 the company was acquired by BT Group, but continues to operate as a separate business.
Check out our '101 Yorkshire and Humberside’ list for more tech stars from the region.