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CityFibre

Fiberoptic Equipment · London, United Kingdom · Founded 2011 · Privately Held (backing)

Operator of an independent full fiber infrastructure platform and supplier of fiber optic equipment intended to serve service integrators, enterprise and consumer service providers and mobile… CityFibre is based in London, United Kingdom and was founded in 2011. Its last reported valuation was $3.6 billion in Mar 2023. It has raised $13.5 billion across 1 recorded round; the latest was a $4.4 billion growth round in Jul 2025.

Last reported valuation
$3.6B
Oct 2026
Priced at
—
Total raised
$13.5B
Last round
PE Growth/Expansion
Jul 2025

CityFibre key facts

as of Oct 2026
  • Operator of an independent full fiber infrastructure platform and supplier of fiber optic equipment intended to serve service integrators, enterprise and consumer service providers and mobile…
  • CityFibre is valued at approximately $3.6B as of Oct 2026 (last reported valuation).
  • It has raised $13.5B across 1 recorded rounds; the latest was PE Growth/Expansion ($4.4B) in Jul 2025.
  • Notable investors include Mubadala Investment Company, Goldman Sachs Asset Management, Antin Infrastructure Partners, Interogo Holding, Invest AD.
  • Status: Privately Held (backing).
Last reported valuation
LOW confidence
$3.6B

CityFibre's last reported valuation, Mar 2023. Nothing priced has surfaced since.

set by last reported valuationas of Oct 2026question about this number?
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CityFibre funding rounds

1 rounds
Jul 2025PE Growth/Expansion$4.4B▮
Full funding history →

CityFibre valuation

CityFibre's last reported valuation was $3.6 billion in Mar 2023. No priced round, secondary trade or fund mark has surfaced since.

How much has CityFibre raised?

CityFibre has raised $13.5 billion in total; 1 of its rounds is on record. The largest on record was a $4.4 billion growth round in Jul 2025.

CityFibre investors

5 investors are on record for CityFibre, including Mubadala Investment Company, Goldman Sachs Asset Management, Antin Infrastructure Partners and Interogo Holding. The growth round in Jul 2025 drew 4 investors.

About CityFibre

Operator of an independent full fiber infrastructure platform and supplier of fiber optic equipment intended to serve service integrators, enterprise and consumer service providers and mobile operators. The company specializes in offering and managing digital infrastructure, enabling clients to provide ultra-fast, reliable and future-proof broadband, ethernet and 5G services to homes and businesses, and other sites such as schools and hospitals.

Industry
Fiberoptic Equipment
Sector
Information Technology
HQ
London, United Kingdom
Founded
2011
Employees
1,672
Ownership
Privately Held (backing)

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