Ostrum Asset Management

Financial ServicesÎle-de-France, France201-500 Employees

Ostrum Asset Management draws on its investment expertise to enhance the impact of its clients’ commitments as they act together to support European citizens’ life plans, health and retirement. 
Ostrum Asset Management is among the European leaders1 in institutional asset management, providing support to its clients operating under liability constraints across the entire investment value chain with a range of insurance-based (equities, bonds, multi-assets), fixed income, equity and quantitative management offerings, combined with a dedicated set of service offerings.
Ostrum Asset Management is a well-established responsible investment advocate2 and manages €386 billion3/4 in assets for large institutional clients – insurers, pension funds, health insurers, corporations.
Ostrum Asset Management is an affiliate of Natixis Investment Managers.

1. IPE Top 500 Asset Managers (Investment & Pensions Europe) 2025 ranked Ostrum AM as the 9th largest European institutional asset manager, as at 12/31/2024. Any reference to a ranking, a rating or an award provides no guarantee for future performance.
2. Ostrum AM was one of the first French asset manager signatories to the PRI in 2008. More details: www.unpri.org
3. Source: Ostrum Asset Management, consolidated data at end-June 2025. The services provided for a given client may concern certain services only.
4. Change in the methodology used for the reporting of assets, effective January 1, 2025.

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