United Kingdom · Venture startup
4 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.
Funding summaryUpdated 26 Oct 2026
$32Mraised across 4 rounds since 2007, from 4 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Reported by fiercebiotech.com
Reported by onbiovc.com
Reported by polytherics.co.uk
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Longbow Capital LLP
Invesco Perpetual
Mercia Fund ManagementThe Capital FundMissing a round, or an investor who was in one? Tell us.
PolyTherics's investors include Imperial Innovations Investment Management, Longbow Capital LLP, Invesco Perpetual, Mercia Fund Management and The Capital Fund.
PolyTherics has raised $32M across 4 rounds since 2007.
PolyTherics's most recent round was a Venture of $20M in Jul 2013.
Its most recent round, $20M in Jul 2013, is also its largest on record.
PolyTherics's first round on record, in Jun 2007, was backed by Imperial Innovations Investment Management and Longbow Capital LLP.
PolyTherics's latest named round is a Venture, in Jul 2013.
PolyTherics is based in the United Kingdom.
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United Kingdom ·