SF-Filter
SwitzerlandWho owns SF-Filter?
SF-Filter is a Swiss Mobility company, currently owned by Equistone Partners Europe since 2022 and Equistone Partners. It changed hands in 2022, when Ambienta sold.
Hand-verified · updated 2026-09-30
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Key facts
Ownership history
3 ownership periods · co-invest detected
Ambienta sold SF-Filter to Equistone Partners Europe in 2022 after 6 years.
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Who owns SF-Filter?
SF-Filter is currently owned by Equistone Partners Europe and Equistone Partners, through Equistone Partners Europe Fund VI, since 2022.
When did Equistone Partners Europe and 1 other acquire SF-Filter?
Equistone Partners Europe and 1 other acquired SF-Filter in 2022.
Who did SF-Filter sell to?
Ambienta sold SF-Filter to Equistone Partners Europe in 2022 (Trade Sale).
Who has owned SF-Filter over time?
SF-Filter has been through 3 private-equity ownership periods: Ambienta · via Ambienta II · 2016–2022 · sold to Equistone Partners Europe · (Trade Sale); Equistone Partners Europe · via Equistone Partners Europe Fund VI · 2022–2022; Equistone Partners · via Equistone Fund VI · since 2022.