Updated:
IBS Capital Allies
Founded in 1987, IBS Capital Allies traces its roots to an independent asset-management culture in Amsterdam. Harold Knebel serves as Partner and CEO, while...
IBS Capital Allies
Founded in 1987, IBS Capital Allies traces its roots to an independent asset-management culture in Amsterdam. Harold Knebel serves as Partner and CEO, while Hans Betlem holds the CIO seat and Tim Timmermans acts as a third partner. The firm discloses its wealth-management legacy but does not attribute the entity to a single originating family — it operates as an independent partnership serving Dutch institutions, entrepreneurs, and high-net-worth individuals from its headquarters in Amsterdam and additional offices in Vught and Rotterdam. IBS runs a deliberate barbell across public and private markets. On the public side, its Centive and SilverCross portfolios deploy into global equities, bonds, and index funds. The private-markets practice, led by Koen Ronda since April 2013, covers private equity, real estate, infrastructure, and private debt — accessed through direct co-investments, fund commitments, and secondaries. The firm also maintains a fiduciary advisory unit that optimizes investment policy for institutional clients. Its stated reach spans developed Europe and North America, reflecting the cross-border bias of the manager-selection and co-investment pipelines. With a team of roughly 100, IBS has added operational density recently: Mark Oud joined as Head of Investments in October 2024, while the wealth-management group brought on multiple senior hires in early 2025 and 2026. The firm runs a dedicated External Manager Selection unit under Pieter Laan, signaling a fund-of-funds capability that sits alongside the direct-investing engine. Beyond the core asset-management vehicle, IBS operates a corporate-finance division and runs a blog and podcast series under the "IBS Capital Allies" brand, distributing market commentary to its client base. IBS is structurally distinct from a pure family office: it serves external fee-paying clients exclusively, with no single-family balance sheet at its core. The fiduciary-management arm acts as an outsourced investment office for Dutch pension funds and insurers, giving the firm a regulated, multi-client posture uncommon among smaller European managers. That hybrid architecture — fee-based wealth management, institutional fiduciary services, and a private-markets platform — separates IBS from single-strategy boutiques and gives it a mandate shaped by liability-driven institutional clients alongside private wealth.
General information
Firm type
Generalist
Year founded
1987
AUM
Undisclosed
Location
Region
Europe
Country
Netherlands
City
Amsterdam
Corporate office
De Cuserstraat 87, 1081 CN Amsterdam, Netherlands
Additional offices
Vught, Netherlands · Rotterdam, Netherlands
Principals
Harold Knebel
Partner/CEO
Hans Betlem
Partner/CIO
Tim Timmermans
Partner
Marije Bot
CPO
Mark Oud
Head of Investments
Koen Ronda
Head of Private Markets Investments
Pieter Laan
Head of External Manager Selection
Sector focus
Frequently asked questions
Who runs investment decisions at IBS Capital Allies?
Hans Betlem serves as Partner and Chief Investment Officer, a role he has held since March 2012. The investment team is further led by Mark Oud as Head of Investments, Koen Ronda as Head of Private Markets Investments, and Pieter Laan as Head of External Manager Selection. This distributed leadership reflects the firm's multi-sleeve approach, splitting public-markets portfolio management from private-markets origination and external-manager due diligence.
Is IBS Capital Allies a single-family office or an external asset manager?
IBS Capital Allies operates purely as an external asset manager, not a family office. It serves Dutch institutions, entrepreneurs, and high-net-worth individuals on a fee-paying basis and does not disclose any single-family balance sheet at its core. Its fiduciary advisory division functions as an outsourced investment office for pension funds and insurers, further distinguishing it from single-client structures.
How does IBS access private-market investments?
The private-markets team, led by Koen Ronda, sources opportunities through direct co-investments, primary fund commitments, and secondary transactions. The firm covers private equity, private credit, real estate, and infrastructure. Additionally, Pieter Laan's external-manager selection unit evaluates third-party funds, allowing IBS to combine its own underwriting with a fund-of-funds approach for clients who prefer blended exposure.
What is the relationship between IBS Capital Allies and its SilverCross and Centive portfolios?
SilverCross and Centive are internal public-markets strategies, not separate legal entities or external managers. Portfolio managers David Simons (SilverCross) and Johannes Smit with Reinder Wietsma (Centive) run concentrated listed-equity mandates sourced from IBS's Amsterdam platform. The strategies sit alongside the private-markets and fiduciary-advice businesses, giving the firm a diversified asset-management revenue mix.
Does IBS Capital Allies participate in co-investments alongside external GPs?
Yes, the private-markets investment team executes co-investment transactions alongside external general partners, in addition to making primary fund commitments and secondary purchases. The dual capability — selecting external managers and originating direct deals — gives the firm the option to offer clients either diversified fund exposure or concentrated co-investment opportunities.
Where does IBS's underlying AUM come from?
IBS does not publicly disclose its assets under management. The client base, described on the firm's website, includes Dutch institutions, wealthy entrepreneurs, and high-net-worth families. The fiduciary-advisory arm serves pension funds and insurers, indicating a significant institutional component alongside private wealth.
How does IBS structure its fiduciary advisory services?
The fiduciary-management division operates as an independent advisory unit optimizing investment policy for Dutch institutional clients. Senior fiduciary managers, including Max Veldkamp and Fleur Bloemen, advise on asset-liability matching, manager selection, and portfolio construction. This unit sits alongside the discretionary wealth-management and private-markets teams, creating a multi-client architecture that generates separate advisory fees.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
Need institutional-grade insight on asset managers?
Altss delivers:
Prefer a guided tour?
We’ll walk you through: