Maest
Family Office
Maest is a Netherlands-based single family office managing capital across a diversified set of asset classes. The firm invests exclusively its own equity and operates without leverage.
Private Markets: Venture Capital, Private Equity, Hedge Funds
Commercial Real Estate
Public Markets
INVESTMENT FOCUS
Allocations
Maest follows a highly selective investment approach, with long-term orientation and no dependency on external capital. We are focused on access to differentiated, capacity-constrained opportunities, and have preference for managers with repeatable strategies and disciplined execution. Emphasis is on alignment, transparency, and governance. Capital is deployed with patience, prioritizing quality over volume.
Maest maintains a concentrated portfolio and engages with a limited number of new managers each year. We are regarded as a stable, informed, and execution-focused capital partner, offering consistency across market cycles.
1
Lower middle market private equity buyout funds structured for participation exemption
2
LP-led secondaries in top-quartile private equity funds
3
Multi-asset co-investment funds
4
Commercial Real Estate
PORTFOLIO
Maest invests in private markets, with focus on direct allocations to Netherlands-based lower middle market funds.
Maest is a founder-led single family office based in the Netherlands, investing solely its own capital. We actively manage a significant allocation to private markets while reducing exposure to liquid public markets.
In select funds, we take seat in the advisory committee or act as (delegated) board member.
Access is driven by long-standing relationships and a reputation as a reliable, value-added capital partner
61
Private Equity Funds
10
Venture Capital, Deep Tech & Blockchain funds
3
Direct Investments
FOUNDER
Founder Stijn Koster
Stijn Koster is a Dutch technology entrepreneur best known as the founder of i3D.net, a global hosting and infrastructure provider for online gaming that he built into a major platform serving large-scale game launches worldwide, and Smartdc datacenters.
After leading the companies for more than two decades and scaling them to significant global reach, he transitioned from CEO to Chairman of the Supervisory Board. He now focuses on strategic investment, governance, and advisory roles, while remaining active in technology, private markets, and entrepreneurship.
5x Founder, 3x Exit
Founder of multiple technology companies
Mergers & Acquisitions: Acquired 6 companies, sold 3 companies to publicly listed corporations
Solid Financials
Maest: founder of fast growing, profitable companies.
