FluidOne is the latest MSP to collaborate with G.Network as a wholesale partner.
Yayzi has become the latest consumer ISP to join CityFibre's open access network and will help bring gigabit broadband to businesses in Blackpool and Preston.
CityFibre has invested £90m into the project, with the first customers expected to go live in Preston in September 2021 and Blackpool in January 2022.
Liam Mulryan, CEO at Yayzi, said: "Access to quality broadband has never been so important, and this partnership allows us to bring full fibre-enabled services to Blackpool, Fleetwood, Cleveleys, Bispham, Poulton-le-Fylde and Preston for the first time."