United Kingdom · Who invested in Patients Know Best?
Patients Know Best's investors include Maxfield Capital, Seedcamp, Balderton Capital, Keith Willey and UnLtd.
200920122015201820212024
?Seed$1.1MSeed$40KGrant$1.7MVenture$3.7MVenture$4.6MRound$1.8MRound$6.1MRound
United Kingdom · Venture startup
Who invested in Patients Know Best
Funding summaryUpdated 26 Oct 2026
$19Mraised across 8 rounds since 2009, from 8 sources
$1.1MSeed$40KGrant$1.7MVenture$3.7MVenture$4.6MRound$1.8MRound$6.1MRound
- Latest round
- Round, $6.1MAug 2025
- Step-upi
- 3.3×
- Investors
- 5
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Seed Apr 2009
- Biggest round
- $6.1M Round · Aug 2025
- Usual gap between rounds
- 21 months the median of 7
The rounds
- Aug 2025Round$6.1M
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
- Nov 2023Round$1.8M
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
- Oct 2021Round$4.6M
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
- Dec 2015
- Nov 2014
- Oct 2011
- Jul 2010
- Apr 2009
Funding filed with regulators
Patients Know Best filed 3 raises, $13M in all. Filings say how much was sold and to how many investors; they never name the investors.
- Aug 2025$6.1MUK share allotment
- Nov 2023$1.8MUK share allotment
- Oct 2021$4.6MUK share allotment
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.
Seed2009Seed2010Grant2011Venture2014Venture2015Round2021Round2023Round2025
Maxfield Capital
Seedcamp
Balderton CapitalKeith Willey
UnLtd
Maxfield CapitalSeedcampBalderton CapitalKeith WilleyEveryone who backed them
Keith WilleyAngel1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about Patients Know Best
How much has Patients Know Best raised?
Patients Know Best has raised $19M across 8 rounds since 2009. One round did not disclose an amount, so the total is a floor.
When did Patients Know Best last raise?
Patients Know Best's most recent round, $6.1M, was in Aug 2025.
What was Patients Know Best's biggest round?
Its most recent round, $6.1M in Aug 2025, is also its largest on record.
Who backed Patients Know Best first?
Patients Know Best's first round on record, in Apr 2009, was backed by Seedcamp.
What stage is Patients Know Best at?
Patients Know Best's latest named round is a Venture, in Dec 2015.
Where is Patients Know Best based?
Patients Know Best is based in the United Kingdom.
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