United Kingdom · 
Who invested in Prosonix?
Prosonix's investors include Ventech, Gilde Healthcare, Entrepreneurs Fund, Quest for Growth and Solon Ventures, and 1 more on record.
2012
$18MSeries B$27MSeries BUnited Kingdom · Series B startup
Who invested in Prosonix
2 rounds we have observed, with the 6 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
$45Mraised across 2 rounds since 2011, from 2 sources
$18MSeries B$27MSeries B
- Latest round
- Series B, $27MMay 2012
- Step-upi
- 1.5×
- Investors
- 6
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series B, $18M Jul 2011
- Biggest round
- $27M Series B · May 2012
- Between rounds
- 11 months from the last two
The rounds
- May 2012Series B$27M1 new5 returning
Reported by finsmes.com
- Jul 2011Series B$18M5 new
Reported by growthbusiness.co.uk
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.
The exit
ExitBuyerPriceWhen
AcquiredCircassiaundisclosedMay 2015
From historical deal records. Wrong? Tell us.
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Quick answers about Prosonix
How much has Prosonix raised?
Prosonix has raised $45M across 2 rounds since 2011.
When did Prosonix last raise?
Prosonix's most recent round was a Series B of $27M in May 2012.
What was Prosonix's biggest round?
Its most recent round, $27M in May 2012, is also its largest on record.
Who backed Prosonix first?
Prosonix's first round on record, in Jul 2011, was backed by Ventech, Gilde Healthcare and Entrepreneurs Fund and 2 others.
What stage is Prosonix at?
Prosonix's latest named round is a Series B, in May 2012.
Where is Prosonix based?
Prosonix is based in the United Kingdom.
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