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Ysios Capital

Investor type Venture Capital
Founders Joel Jean Mairet


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This summary is composed by our algorithm based on the analysis of the deals. If you think that some of this information is not accurate, please let us know about it and provide any supporting evidences if possible. Such cases will be analyzed by our ML-algorithm and implemented in our database, which will improve this summary.
Total investments 62
Average round size
The average size of a deal this fund participated in
Portfolio companies 36
Rounds per year 4.43
Lead investments 15
Follow on index
How often the fund supports its portfolio startups at next rounds
Exits 10
Key employees 6
Stages of investment
Early Stage Venture
Late Stage Venture

Areas of investment

  • Biotechnology
  • Health Care
  • Medical
  • Pharmaceutical
  • Medical Device

Ysios Capital appeared to be the VC, which was created in 2008. The fund was located in Europe if to be more exact in Spain. The main department of described VC is located in the Barcelona.

The fund was created by Joel Jean Mairet. Besides them, we counted 6 critical employees of this fund in our database.

Deals in the range of 10 - 50 millions dollars are the general things for fund. The high activity for fund was in 2017. Despite it in 2019 the fund had an activity. The fund is generally included in 2-6 deals every year. Opposing the other organizations, this Ysios Capital works on 6 percentage points less the average amount of lead investments. The real fund results show that this VC is 20 percentage points more often commits exit comparing to other companies. The higher amount of exits for fund were in 2014.

The standard case for the fund is to invest in rounds with 5-6 partakers. Despite the Ysios Capital, startups are often financed by Kurma Partners, Caixa Capital Risc, Life Sciences Partners. The meaningful sponsors for the fund in investment in the same round are Life Sciences Partners, Idinvest Partners, Andera Partners. In the next rounds fund is usually obtained by Caixa Capital Risc, Kurma Partners, Gilde Healthcare.

Moreover, a startup needs to be at the age of 6-10 years to get the investment from the fund. For fund there is a match between the country of its foundation and the country of its the most frequent investments - Spain. Among the most popular fund investment industries, there are Medical, Hospital. Among the various public portfolio startups of the fund, we may underline CVRx, AM Pharma, BioVex The fund has specific favorite in a number of founders of portfolio startups. If startup sums 5+ of the founder, the chance for it to be financed is low.

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Funds with similar focus acting as lead investors:

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Notable deals

CompanyIndustryRound SizeDateInvestorsLocation

Mineralys Therapeutics

$118M08 Jun 2022 Radnor, Pennsylvania, United States

Minoryx Therapeutics

$60M31 May 2022 Barcelona, Catalonia, Spain

Splice Bio

Life Science
$59M15 Feb 2022 Barcelona, Catalonia, Spain

NorthSea Therapeutics

Health Care
$80M17 Dec 2021 The Netherlands, North Holland, Netherlands

Aura Biosciences

Health Care
03 Nov 2021 Cambridge, Massachusetts, United States

Aelix Therapeutics

Health Care
$2M16 Sep 2021 Barcelona, Catalonia, Spain

Life Science
$45M04 May 2021 Denmark, Capital Region of Denmark, Denmark


$60M29 Apr 2021 Copenhagen, Capital Region of Denmark, Denmark

Synendos Therapeutics

Health Care
$26M20 Apr 2021 Basel-Country, Switzerland
Aura Biosciences Announces Oversubscribed $80 Million Financing

– Aura Biosciences closed an oversubscribed $80m financing.
– The financing was led by Matrix Capital Management and Surveyor Capital (a Citadel company) with participation from new investors, including Rock Springs Capital, Adage Capital Management LP and Velosity Capital.
– Existing investors Medicxi, Advent Life Sciences, Lundbeckfonden Ventures, Arix Bioscience, Chiesi Ventures, Ysios Capital and Columbus Venture Partners also participated in the round.


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