Funding round
CityFibre Growth
Reported as "Growth Equity"
CityFibre, which works in fibre network infrastructure deployment in London, raised $3.12B in a Growth round announced on 19 Sep 2025. 4 firms took part. It is CityFibre's second venture round on record; the one before was a Growth in Jul 2025.
$3.12B
Amount raised
2,300,000,000 GBP converted
Not disclosed
Post-money valuation
4
Investors
no lead named
Valuation
What this round says about the price
CityFibre did not disclose a valuation in this round. It came 2 months after CityFibre's Growth. It is 82% of the $3.79B CityFibre has raised in the venture rounds on record. No later venture round is on record for CityFibre.
CityFibre's funding rounds
CityFibre has 2 venture rounds on record. This one is highlighted.
- Growth 14 Jul 2025 $670M
- Growth this round 19 Sep 2025 $3.12B
Investors
Who put money in
4 firms took part; no lead investor was named.
Investors
- Infrastructure at Goldman Sachs Alternatives new investor
- backs 2 venture-backed companies new investor
- Mubadala backs 42 venture-backed companies new investor
- Interogo Holding new investor
Use of proceeds
What the money is for
According to the announcement, the money goes to scaling operations.
- Scaling operations
Comparable rounds
How it compares
6 Growth rounds in Cable & Internet Providers within a year either side disclosed an amount; the median was $68M, and this round was 46 times the median. The closest in time, other companies' Growth rounds in Cable & Internet Providers:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Cable & Internet Providers | 18 Aug 2025 | $169M | not disclosed | Scottish National Investment Bank |
| Cable & Internet Providers | 14 Aug 2025 | $68M | not disclosed | not named |
| Cable & Internet Providers | 20 Aug 2025 | undisclosed | not disclosed | not named |
| Cable & Internet Providers | 23 Jun 2025 | $67M | not disclosed | National Wealth Fund |
| Cable & Internet Providers | 1 Dec 2025 | $50M | not disclosed | Oak Hill |
| Cable & Internet Providers | 13 May 2026 | $68M | not disclosed | Quantum Strategic Partners |
| Cable & Internet Providers | 17 Sep 2026 | $105M | not disclosed | not named |
Sources
Where this comes from
Reported by 3 sources.
Questions
Frequently asked
How much did CityFibre raise in its Growth round?
CityFibre raised $3.12B in its Growth round, announced in Sep 2025.
Which investors took part in CityFibre's Growth round?
Infrastructure at Goldman Sachs Alternatives, Antin Infrastructure Partners, Mubadala and Interogo Holding.
What was CityFibre's valuation at the Growth round?
It was not disclosed.
How does it compare with other Growth rounds in Cable & Internet Providers?
6 Growth rounds in Cable & Internet Providers within a year either side disclosed an amount; the median was $68M, and this round was 46 times the median.