Sienna is a multi-specialist asset manager. Spanning listed and private assets, Sienna Investment Managers designs bespoke, innovative solutions for its clients, combining performance with a responsible approach. As of December 2025, the Group oversees approximately €33 billion in assets under management.
Backed by more than 35 years of experience, our private debt platform is built around three complementary pillars: corporate private debt, infrastructure private debt and granular private debt—three areas of expertise we would be delighted to present in more detail.
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