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Forty51 Ventures

Engelgasse 119, Basel, Basel-Stadt, 4052, Switzerland

Overview

Biotech venture capital firm.

Founded

2022

Deals ยท 12mo

2

Links

WebsiteLinkedIn

Stage focus

Seed
Series A

Geographic focus

Switzerland
United States

Sector focus

Biotechnology

Investment portfolio

5rounds
NAMEDATESIZE
Ferrosa Therapeutics
Apr 2026Led
$4 MSeed
Allegria Therapeutics
Dec 2025Participated
$5 MSeed
Mosanna Therapeutics
Jun 2025Participated
$80 MSeries A
Allegria Therapeutics
May 2024Led
$4 MSeed
Mysthera Therapeutics
Aug 2023Led
$4 MSeed
Ferrosa Therapeutics
Apr 2026Led
$4 MSeed
Allegria Therapeutics
Dec 2025Participated
$5 MSeed
Mosanna Therapeutics
Jun 2025Participated
$80 MSeries A
Allegria Therapeutics
May 2024Led
$4 MSeed
Mysthera Therapeutics
Aug 2023Led
$4 MSeed
5
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Insights

Time horizon

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Deal Distribution

Forty51 Ventures: 5 funding rounds are recorded in the selected participation categories.All available history.
Forty51 Ventures: 5 funding rounds are recorded in the selected participation categories. All available history
Round typeLed dealsParticipated deals
Seed31
Series A01

Monthly Deal Activity

Forty51 Ventures: 5 deals are recorded across 39 months.All available history.
Forty51 Ventures: 5 deals are recorded across 39 months. All available history
MonthDeals
Aug '231
Sep '230
Oct '230
Nov '230
Dec '230
Jan '240
Feb '240
Mar '240
Apr '240
May '241
Jun '240
Jul '240
Aug '240
Sep '240
Oct '240
Nov '240
Dec '240
Jan '250
Feb '250
Mar '250
Apr '250
May '250
Jun '251
Jul '250
Aug '250
Sep '250
Oct '250
Nov '250
Dec '251
Jan '260
Feb '260
Mar '260
Apr '261
May '260
Jun '260
Jul '260
Aug '260
Sep '260
Oct '260

Sector Breakdown

Forty51 Ventures: Health & Life Sciences is the largest displayed sector by deal count (5 deals).All available history.

A deal can appear in multiple sectors, so sector totals may overlap. Capital represents disclosed total round sizes, not fund cheque sizes.

Forty51 Ventures: Health & Life Sciences is the largest displayed sector by deal count (5 deals). All available history
SectorDeals
Health & Life Sciences5

Deal Size Distribution

Forty51 Ventures: 5 rounds have a disclosed size in the displayed size bands.All available history.

Undisclosed round sizes are excluded. Capital represents total round sizes, not fund cheque sizes.

Forty51 Ventures: 5 rounds have a disclosed size in the displayed size bands. All available history
Round size band (USD)Deals
<$5M3
$5M-$10M1
$10M-$25M0
$25M-$50M0
$50M-$100M1
$100M-$250M0
$250M-$500M0
$500M-$1B0
$1B+0

Deals By Geography

Forty51 Ventures: Europe has the largest recorded deal count among the displayed regions (4 deals).All available history.

Top 2 of 2 regions; European countries are grouped as Europe.

Forty51 Ventures: Europe has the largest recorded deal count among the displayed regions (4 deals). All available history
RegionDeals
Europe4
United States1
Forty51 Ventures: 9 co-investors are shown, with ALK Abello sharing 1 recorded deals.All available history.

Co-Investors

Bubble size = shared deals

Click a bubble to open that fund in a new tab.

Shows up to 20 co-investors ranked by shared deals. Deals may be shared with multiple funds, so rows overlap. Capital is total round size, not fund cheque size.

Forty51 Ventures: 9 co-investors are shown, with ALK Abello sharing 1 recorded deals. All available history
Co-investorShared deals
ALK Abello1
Broadview Ventures1
EQT Life Sciences (LSP)1
Forbion1
High-Tech Grunderfonds1
Lichtsteiner Foundation1
Norwest Venture Partners1
Pivotal bioVenture Partners1
Supermoon Capital1

Investment Strategy

Forty51 Ventures: Led accounts for 60% and participating for 40% of round participation.All available history.
Forty51 Ventures: Led accounts for 60% and participating for 40% of round participation. All available history
CategoryDeals (count)Share (%)
Led360%
Participating240%
Forty51 Ventures: Single-lead accounts for 100% and co-led for 0% of lead dynamics.All available history.
Forty51 Ventures: Single-lead accounts for 100% and co-led for 0% of lead dynamics. All available history
CategoryDeals (count)Share (%)
Single-lead3100%
Co-led00%

Team

Tamas Schweighoffer

Partner