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Sesamers

SaaS and B2B software

European SaaS investors

Desk data for 2026.

These are real, verified funds with a SaaS and B2B software line in their thesis – ticket ranges and fund sizes shown only where disclosed. Ranked by data completeness and stage relevance.

1Rank

ISAI

Pre-seed to growth, capital-efficient SaaS Paris, France €1.1B across four strategies

The French tech entrepreneurs' fund, backed by more than 430 tech entrepreneurs investing alongside institutional LPs. ISAI Venture IV writes €1-3M as lead or co-lead, with a pre-seed pocket from €100K, concentrating on capital-efficient SaaS and marketplace models. Portfolio includes BlaBlaCar, Malt and 360Learning.

Why it is hereThe most fully disclosed ticket range and track record on this desk, with named SaaS exits and scale-ups.
2Rank

Main Capital Partners

Growth-stage, enterprise software exclusively The Hague, Netherlands €5M–€150M ticket

A private equity firm investing exclusively in enterprise software, with a portfolio spanning healthcare, human capital, security and government software. Backs profitable growth across Northwestern Europe and North America, building companies into larger groups through buy-and-build.

Why it is hereThe widest disclosed ticket range on this desk, useful for a founder considering a growth or buyout-stage raise.
3Rank

Iris Capital (IRIS)

Seed to Series A, software and SaaS Paris, France (Berlin, Munich offices) €1M–€8M ticket

A European venture firm founded in 1986, sponsored since 2012 by Orange and Publicis, deploying over €1B since inception across more than 350 companies. Portfolio includes Talend, Kyriba and LeanIX.

Why it is hereA well-disclosed early-stage ticket range with a strong enterprise-software track record.

This is one of the larger fund universes on Sesamers by count – 47 funds carry a SaaS line, though only a handful have fully disclosed ticket ranges. Further verification is ongoing.

Common questions

Which SaaS fund covers the widest ticket range?
Main Capital Partners, from €5M growth cheques up to €150M for buyout-stage deals.
Is there a fund built specifically for French SaaS founders?
ISAI, backed by more than 430 French tech entrepreneurs, concentrates over 80% of its capital in France.
Does Sesamers take payment for placement on this list?
No. Every fund shown is included because its data is verified, not because it paid for coverage.

Methodology

Counts are drawn from published Sesamers records tagged to this vertical in 2026. Funding totals use EUR-converted desk rates.

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