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IJ Partners
Theodore Margellos established IJ Partners as a multi-family office in Geneva. The firm supplies investment advisory and financial planning to high-net-worth...
IJ Partners
Theodore Margellos established IJ Partners as a multi-family office in Geneva. The firm supplies investment advisory and financial planning to high-net-worth families focused on capital preservation across generations. IJ Partners allocates across private equity, private credit, real estate, infrastructure and natural resources. It also commits to funds and participates in secondaries. Confirmed holdings include commercial property in Thessaloniki and the Bentwaters Airport site in Suffolk. The firm maintains exposure in Europe, North America, Asia, Africa, the Middle East and South America. No recent operational events from the last 24 months appear in available records. The firm lists philanthropic vehicles that include the Margellos World Republic of Letters, Smiling Children Foundation and Womanity Foundation. IJ Partners operates with an advisory board and external business partners rather than a large internal investment committee. Partners maintain ties to the World Economic Forum and Young Presidents' Organization.
General information
Firm type
Multi Family Office
Location
Region
Europe
Country
Switzerland
City
Geneva
Corporate office
Geneva, Switzerland
Principals
Theodore Margellos
Founder and Managing Partner
José María Figueres
Managing Partner
Theodore Kyriakou
Co-Investor
Robert Mundell
Advisory Board
Miranda Xafa
Business Partner
Sector focus
Frequently asked questions
Who runs investment decisions at IJ Partners?
Theodore Margellos serves as Founder and Managing Partner. José María Figueres acts as Managing Partner. An advisory board that includes Robert Mundell provides additional input.
Does IJ Partners participate in fund commitments or only direct deals?
The firm uses both approaches. It makes fund commitments, executes secondaries and holds direct positions in real estate and infrastructure.
Where does the underlying wealth come from?
Wealth origin is not publicly attributed to a single family or operating company.
What investment stages does IJ Partners typically target?
The firm targets early-stage, growth and startup opportunities alongside later-stage private equity and infrastructure.
How is IJ Partners related to its philanthropic structures?
The firm lists the Margellos World Republic of Letters, Smiling Children Foundation and Womanity Foundation as separate philanthropic vehicles.
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.
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