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Single Family Office

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Ion-Ion (Jon Riberas Family Office)

Ion-Ion (Jon Riberas Family Office) is a single-family office headquartered in Madrid, Spain. Founded in 1994, it oversees the investment and wealth management...

Ion-Ion (Jon Riberas Family Office)

Ion-Ion (Jon Riberas Family Office) is a single-family office headquartered in Madrid, Spain. Founded in 1994, it oversees the investment and wealth management needs of Jon María Riberas Mera and his family, whose fortune originates from controlling stakes in automotive components manufacturer Gestamp and steel processor Gonvarri. The office allocates capital across private equity, real assets and diversified holdings.

General information

Firm type

Single Family Office

Year founded

1994

Location

Region

Europe

Country

Spain

City

Madrid

Frequently asked questions

What is Ion-Ion (Jon Riberas Family Office)?

Ion-Ion (Jon Riberas Family Office) is a single family office headquartered in Madrid, Spain.

When was Ion-Ion (Jon Riberas Family Office) founded?

Ion-Ion (Jon Riberas Family Office) was founded in 1994.

Where is Ion-Ion (Jon Riberas Family Office) headquartered?

Ion-Ion (Jon Riberas Family Office) is headquartered in Madrid, Spain, in the Europe region.

What does Altss track for Ion-Ion (Jon Riberas Family Office)?

Altss maintains an OSINT-verified profile of Ion-Ion (Jon Riberas Family Office) covering investment focus (ESG policy, ticket size, target IRR, currency preference, regional focuses, industry focuses, technological focuses), team (service providers and advisors), deals (company deals and fund commitments), assets (real estate, public market positions, private companies, art and cultural holdings, philanthropy and foundations), and network (club memberships, associations, and event participation). Detailed values are available to Altss subscribers.

What is Ion-Ion (Jon Riberas Family Office)'s website?

Ion-Ion (Jon Riberas Family Office)'s public website is ionion.es. Verified contact details for principals and decision-makers are available to Altss subscribers.

What type of firm is Ion-Ion (Jon Riberas Family Office)?

Ion-Ion (Jon Riberas Family Office) is classified by Altss as a Single Family Office, operating from Spain within the Europe region.

How does Altss source intelligence on Ion-Ion (Jon Riberas Family Office)?

Altss uses documented public records and disclosures, organization submissions, and licensed sources where permitted. Source rights, collection method and factual verification are separate questions; consult the cited source and field-level provenance.

When was Ion-Ion (Jon Riberas Family Office)'s Altss profile last updated?

Ion-Ion (Jon Riberas Family Office)'s source record was modified on July 6, 2026. This is not a field-level verification date. Public records carry source-specific dates where available. No population-wide measured refresh cadence or universal verification deadline is established here. Page modified, source captured, fact observed, entity verified and aggregate measured describe different events. Check the date attached to the relevant claim; a missing verification date means unknown. Stored source history does not establish a customer-facing historical-analysis interface.

Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Source record modified: . Public records carry source-specific dates where available. No population-wide measured refresh cadence or universal verification deadline is established here. Page modified, source captured, fact observed, entity verified and aggregate measured describe different events. Check the date attached to the relevant claim; a missing verification date means unknown. Stored source history does not establish a customer-facing historical-analysis interface. To correct this record or make a privacy request, send the page URL and your evidence to privacy@altss.com; corrections are free.

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