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SIVentures

Founded in 2019 and based in Leipzig (1h from Berlin), this early-stage B2B fund was formerly known as Smart Infrastructure Ventures. Currently in the final stages of closing its new fund (Fund II) at EUR 30M, Fund I achieved a large exit after 2 years, placing it in the top 5% in Europe for its vintage. The fund always seeks a strong tech angle, focusing on IT/software infrastructure, energy, and enterprise software with an AI angle. It aims to be the most active investor on the cap table, taking board seats and remaining active post-investment. Flexible in structure, it can lead, co-lead, or follow. It creates its own SPVs for pro-rata rights and never invests in an SPV as an initial investment, though its LPA is open and flexible regarding Prompt's co-invest model. With ~10 investments last year, the generalist team of ~10 is supported by sector experts who help select and support portfolio companies. Decision-makers hold a high own-money share of ~10%, with corporates and successful entrepreneurs forming the majority LP base. Deal flow is heavily data-driven and mainly outbound from its network (~3,500 deals reviewed last year, with little inbound).

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Fund size
Min. investment
Check size
Fees
Mandate

What they back

Early-stage B2B fund, always wants a strong tech angle. Aims to be the most active investor on the cap table. Lead, co-lead or follow, very flexible. Focus: IT / software infrastructure, energy, enterprise software with an AI angle. Generalist team backed by a network of sector experts who help select and support portfolio companies. Active post-investment, takes board seats.

Co-founded 2019 by Dirk Frohnert (CFA, ex-JPMorgan fund manager in London, early Revolut angel) and a friend of ~25 years. Based in Leipzig.

Sectors
B2BSaaSAISmart Energy
Geography
DACHEurope
Team

The people behind the fund

Dirk Frohnert

Managing Partner

Terms & economics

Key details

Typical check
EUR 500K-700K initial, up to EUR 2.5M
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