I-4S
Who owns I-4S?
I-4S is a French Aerospace & Defence company, currently owned by Weinberg Capital Partners since 2026. It changed hands in 2026, when Galiena Capital sold.
Hand-verified · updated 2026-09-30
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Key facts
- ·Held by Weinberg Capital Partners since 2026 (0Y hold).
- ·Average hold across 2 realized cycles: 3 years.
Ownership history
3 ownership periods
GEI - Poincaré Gestion sold I-4S to Galiena Capital in 2021 after 1 year.
Galiena Capital sold I-4S to Weinberg Capital Partners in 2026 after 5 years.
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Who owns I-4S?
I-4S is currently owned by Weinberg Capital Partners, through Sapian Continuation Fund, since 2026.
When did Weinberg Capital Partners acquire I-4S?
Weinberg Capital Partners acquired I-4S in 2026.
Who did I-4S sell to?
Galiena Capital sold I-4S to Weinberg Capital Partners in 2026 (Secondary). GEI - Poincaré Gestion sold I-4S to Galiena Capital in 2021 (Secondary).
Who has owned I-4S over time?
I-4S has been through 3 private-equity ownership periods: GEI - Poincaré Gestion · via FPCI GEI 2 · 2020–2021 · sold to Galiena Capital · (Secondary); Galiena Capital · via FPCI Galiena II · 2021–2026 · sold to Weinberg Capital Partners · (Secondary); Weinberg Capital Partners · via Sapian Continuation Fund · since 2026.