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System.One
Max Claussen runs System.One, a solo-GP pre-seed fund in Berlin that writes the first check into technical founders before product or traction exist.
System.One
System.One was launched in 2016 by Max Claussen, who began his venture career in 2010 at a large pan-European firm. The Berlin-based operation is intentionally lean, structured around Claussen as the sole investment decision-maker. The firm prioritizes a small group of deeply engaged commitments over the institutional scale that has defined venture capital's maturation since the 2010s. The firm invests exclusively at the pre-seed stage, typically deploying €500K to €3M as the first institutional capital. Claussen writes checks before a product, traction, or even a fully formed idea exists, targeting technical founders with ideas that carry potential for major technical impact. The geographic focus is centered on Europe. While the portfolio is deliberately concentrated and specific names remain undisclosed, the firm's mandate spans enterprise software, artificial intelligence, and industrial technology. System.One operates with no disclosed fund size or team headcount beyond Claussen himself. The firm's posture is defined by its concentrated portfolio and a high degree of alignment with a limited number of limited partners, avoiding the fund-of-funds or club-deal structures common at larger peers. The approach is a direct response to a venture industry the firm views as increasingly process-driven and institutionally heavy, arguing that this obscures the human judgment critical to startup success. The firm's structural differentiator is its solo-GP architecture applied to the earliest stage. Most pre-seed capital is deployed by multi-partner funds or angel syndicates; Claussen operates as a single decision-maker offering institutional-sized checks without a committee. This collapses sourcing, due diligence, and post-investment support into one relationship, a model that leverages speed and singular conviction over consensus-building.
General information
Firm type
Private Equity
Year founded
2016
AUM
Undisclosed
Location
Region
Europe
Country
Germany
City
Berlin
Corporate office
Berlin, Germany
Principals
Max Claussen
Solo GP
Sector focus
Frequently asked questions
Who runs investment decisions at System.One?
Max Claussen operates as the solo GP and makes all investment decisions. He has been an active venture investor since 2010, previously at a large pan-European firm, and has run System.One under this concentrated decision-making model since its 2016 launch.
How does System.One source proprietary deal flow?
System.One relies on the direct relationships and sector experience of Max Claussen, built over a venture career that began in 2010. The firm's lean, concentrated model and singular decision-maker profile are designed to attract technical founders seeking a direct, high-trust relationship at the earliest stage.
Is System.One structured as a single family office or does it operate more like a venture firm?
It operates as a venture firm. System.One is a Berlin-based asset manager structured as a solo-GP venture capital fund. It deploys capital exclusively into pre-seed companies, not as a family office managing a single source of wealth.
Does System.One participate in fund commitments or only direct deals?
System.One focuses on direct pre-seed investments. Based on its described model of writing the very first check and working closely with founders, there is no indication of a fund-of-funds strategy or commitment to external venture capital managers.
What investment stages does System.One typically target?
System.One targets the pre-seed stage exclusively. Max Claussen writes the first institutional check, often before a product, traction, or a definitive idea has been fully formed, with typical check sizes of €500K to €3M.
Which sectors does System.One explicitly avoid?
The firm has not published an explicit list of avoided sectors. Its stated focus is on companies with product and technology at their core, targeting areas with potential for major technical impact, implying a mandate that excludes non-technical business models.
What is System.One's known posture on co-investments alongside external GPs?
System.One's model is built on being the first institutional capital and engaging a small number of deeply committed limited partners, but its public materials do not specify a formal co-investment program or regular syndication alongside other venture firms.
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