Borderlink, which trades as GoFibre, has received a further £164m investment from Gresham House to accelerate its full fibre rollout in Scotland and the north of England.
Zzoom's September financing round has raised £100m to help boost the ISP's goal of connecting one million properties by 2025.
The financing comes from a consortium of banks led by ING Bank, with Hamburg Commercial Bank and Kommunalkredit Austria.
Zzoomm states that expansion across the towns and cities of Hereford, Thirsk, Sandhurst, Crowthorne, Cannock, Crewe and Northallerton are underway.
CEO Matthew Hare said: "This investment provides additional capital to drive our network expansion plans and with the support of our new banking partners, we can go further, faster."