CityFibre is working with Exa Networks to expand its next-generation pure fibre broadband network in South Yorkshire.
Sheffield, Doncaster and Rotherham are to become the provider's next so-called Gigabit Cities, which means local businesses will be able to enjoy speeds up to and exceeding 100Mbps.
CityFibre believes this will give firms in the area a "significant competitive advantage" and enhance their productivity, especially as many are currently struggling with average speeds of 18.36Mbps.
The provider is also confident that the upgrades will "future-proof" the area at a time when demand for greater bandwidth is growing exponentially.
Rob Hamlin, Commercial Director at CityFibre, commented: "We’re delighted to be expanding our partnership with Exa Networks to offer world-class digital infrastructure to Sheffield, Doncaster and Rotherham.
"Organisations large and small now require reliable, fast, low latency internet services to compete and succeed in an ever-changing digital world."
Mr Hamlin described the new digital infrastructure that is being created as "world-class", insisting it would provide internet services of a kind that have never been seen before in the region.
"We look forward to our market launch and to connecting the first customers soon," he said.
This latest announcement comes shortly after CityFibre revealed that during the first half of 2016, it saw a 147 per cent rise in sales, when compared with the same period of 2015.
Greg Mesch, Chief Executive of CityFibre, therefore believes this strong performance means the business is now sitting "at the forefront of transforming the UK's digital infrastructure".
The fact it nearly tripled its revenue during this time is significant, as it has made no secret of wanting to set itself up as a genuine rival to BT Openreach.