AUM
Estimated $2B+ (art collection + Doetsch Grether)
Principals
2
Principal Net Worth
$2.3B
Data Flags
Deceased August 27, 2025 (age 89), major art collection, estate transition
Grether Family Office
SFOHigh ConfidenceBasel, Switzerland
Last verified: Jan 17, 2026
Details
- Website
- Unknown
- Source of Wealth
- Pharmaceuticals/Consumer Goods (Doetsch Grether), Art Collection
- Assets Under Management
- Estimated $2B+ (art collection + Doetsch Grether)
- Source File
- research/organizations/grether-family-office.md
- UID
- fo-grether-family-office
Also Known As
Esther Grether Family OfficeGrether CapitalGrether Collection
Related Entities (3)
Relationship Strength
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Sources (5)
- https://www.forbes.com/profile/esther-grether/
- https://www.swissinfo.ch/eng/various/death-of-esther-grether-owner-of-the-doetsch-grether-group/89917247
- https://www.goodreturns.in/esther-grether-net-worth-and-biography-blnr1867.html
- https://www.celebritynetworth.com/richest-businessmen/richest-billionaires/esther-grether-net-worth/
- https://news.artnet.com/art-world/muriel-salem-frieze-london-2020-1913827
Changelog
- 2026-01-17Upgraded to High confidence - verified net worth via Forbes AND Wikipedia (both $2.3B). Added Swatch shareholding (second largest). Confirmed death date August 27, 2025. Added Kunstmuseum Basel exhibition
- 2026-01-16Enriched with full biography (born 1936, died August 27, 2025), art collection details, Doetsch Grether, net worth at death ($2.3B), updated confidence to Medium
- 2026-01-15Auto-generated from principal Esther Grether