CityFibre has begun work to connect more than 45,000 homes and businesses across areas of Leicestershire and Warwickshire to full fibre thanks to an award of £77m as part of Project Gigabit.
Openreach has now connected more than half of homes and businesses in Milngavie to its ultrafast broadband network, with the first 3,500 properties able to upgrade.
More than 32,000 properties across East Dunbartonshire can upgrade to full fibre.
Work is ongoing elsewhere in Kilsyth as part of the Scottish Government’s Reaching 100 percent programme, covering rural properties.
The company is also working on a Fibre Community Partnership in Gartocharn, where it co-funds and builds full fibre networks for small clusters not included in any other upgrade plans.
The scheme uses vouchers from both UK and Scottish Governments to fill the funding gap.
Robert Thorburn, Openreach Partnership Director for Scotland, said: “Research shows that connecting everyone in Scotland would bring a multi-billion pound productivity boost.”