Private Equity

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Quadrum Capital

Quadrum Capital is a Dutch private equity firm deploying capital alongside a 300-entrepreneur network, led by Peter Oostenenk and Arjan Hoop.

Quadrum Capital logo

Quadrum Capital

We deploy our capital, network, and expertise to support entrepreneurs with ambitious plans and the determination to achieve them.

General information

Firm type

Private Equity

Year founded

AUM

Undisclosed

Location

Region

Europe

Country

Netherlands

City

Almelo

Corporate office

Wierdensestraat 2A, 7607 GH Almelo, Netherlands

Additional offices

Woerden, Netherlands

Principals

Peter Oostenenk

Managing Partner

Arjan Hoop

Managing Partner

Gert van Drie

Partner

Frequently asked questions

Who runs investment decisions at Quadrum Capital?

Investment decisions are driven by the partnership group, led by Managing Partners Peter Oostenenk and Arjan Hoop, with Partner Gert van Drie. The investment team operates with a flat, consensus-oriented structure. The firm emphasizes that its partners have long tenures in Dutch banking and corporate leadership, bringing operational experience rather than purely financial engineering backgrounds.

How does Quadrum Capital source proprietary deal flow?

Quadrum leans heavily on its network of over 300 entrepreneurs, who function as an informal sourcing engine and reference network. This model is designed to surface succession-driven, spin-off, and growth situations before they reach broad auction processes. The firm's presence in Almelo and Woerden — outside the Amsterdam financial district — also positions it closer to family- and founder-owned businesses in the Dutch mid-market.

Is Quadrum Capital structured as a single family office or does it operate more like a venture firm?

Quadrum Capital is a private equity asset manager, not a family office. It pools its own capital alongside capital from its network of entrepreneurial co-investors. While the firm does not publicly describe a traditional closed-end fund structure, its deployment discipline — modest entry multiples, conservative leverage, and active operating involvement — resembles that of a long-hold investment partnership rather than a typical venture firm.

Does Quadrum Capital participate in fund commitments or only direct deals?

Quadrum invests directly in portfolio companies and does not market itself as a fund-of-funds or LP in third-party vehicles. Its model centers on direct equity stakes in mid-market Dutch companies where its partners and network can contribute operational value. The firm has not disclosed any allocations to external private equity funds.

What investment stages does Quadrum Capital typically target?

The firm targets a range of equity situations across the mid-market, including management buyouts, management buy-ins, growth capital rounds, spin-offs, and succession-driven transitions. Its focus remains on established businesses with international growth ambitions, not seed or venture-stage startups.

Does Quadrum Capital maintain philanthropic structures, and how are they separated?

There is no publicly disclosed philanthropic foundation or impact investing vehicle affiliated with Quadrum Capital. The firm's public communications focus exclusively on its investment activities and entrepreneurial partnerships.

What is Quadrum Capital's known posture on co-investments alongside external GPs?

Quadrum structures its own deals as direct investments and does not publicly advertise co-investment slots for external general partners. Its co-investment model is internal — drawing on its 300-entrepreneur network rather than opening deal flow to outside institutional LPs seeking passive co-investment exposure.

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