United Kingdom · Series A startup

Who invested in Bitfount

6 rounds we have observed, with the 5 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

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Funding summaryUpdated 26 Oct 2026

$26Mraised across 6 rounds since 2021, from 6 sources

$4.9MSeed$5.0MSeed$3.3MSeries A$1.9MSeries A$2.6MSeries A$8.0MSeries A
Latest round
Series A, $8.0MJul 2025
Step-upi
3.1×
Investors
5 (2 led)
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2022202320242025
$4.9MSeed$5.0MSeed$3.3MSeries A$1.9MSeries A$2.6MSeries A$8.0MSeries A
First round
Seed, $4.9M
Jun 2021
Biggest round
$8.0M
Series A · Jul 2025
Usual gap between rounds
7 months
the median of 5

The rounds

  1. Jul 2025
    Series A$8.0M3 new1 returning

    Source recorded

  2. Mar 2025
    Series A$2.6M

    No investor was named in the report.

    Shares issued, filed with Companies House (SH01); no report of this raise yet

  3. Sept 2024
    Series A$1.9M

    No investor was named in the report.

    Shares issued, filed with Companies House (SH01); no report of this raise yet

  4. Jan 2024
    Series A$3.3M

    No investor was named in the report.

    Shares issued, filed with Companies House (SH01); no report of this raise yet

  5. May 2022
    Seed$5.0M2 new

    Reported by Ahren Innovation Capital

  6. Jun 2021
    Seed$4.9M

    No investor was named in the report.

    Shares issued, filed with Companies House (SH01); no report of this raise yet

Funding filed with regulators

Bitfount filed 5 raises, $13M in all. Filings say how much was sold and to how many investors; they never name the investors.

  1. Mar 2025$2.6MUK share allotment
  2. Sept 2024$1.9MUK share allotment
  3. Feb 2024$1.4MUK share allotment
  4. Jan 2024$1.9MUK share allotment
  5. Jun 2021$4.9MUK share allotment

Founders and team

From Bitfount's own website: 2 founders, 1 on the team.

Blaise ThomsonCEO & Co-founder
Naaman TammuzCPO & Co-founder
  • João M. GonçalvesHead of Engineering

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Seed2021Seed2022Series A2024Series A2024Series A2025Series A2025SpeedinvestLAhrenLParkwalkForesight GroupPortfolio Ventures

Everyone who backed them

SpeedinvestVC firm2rounds, led 1
AhrenVC firm1round, led 1
ParkwalkVC firm1round
Foresight GroupPrivate equity1round
Portfolio VenturesVC firm1round

Missing a round, or an investor who was in one? Tell us.

Quick answers about Bitfount

Who invested in Bitfount?

Bitfount's investors include Speedinvest, Ahren, Parkwalk, Foresight Group and Portfolio Ventures.

How much has Bitfount raised?

Bitfount has raised $26M across 6 rounds since 2021.

When did Bitfount last raise?

Bitfount's most recent round was a Series A of $8.0M in Jul 2025.

What was Bitfount's biggest round?

Its most recent round, $8.0M in Jul 2025, is also its largest on record.

Who backed Bitfount first?

Bitfount's first round on record, in May 2022, was backed by Speedinvest and Ahren.

What stage is Bitfount at?

Bitfount's latest named round is a Series A, in Jul 2025.

Where is Bitfount based?

Bitfount is based in the United Kingdom.

Who led Bitfount's rounds?

Speedinvest led the Seed in 2022.

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