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Ex-KKR impact head’s MS PARTNERS hits €150m first close for debut European buyout fund

Reported by AltAssets
Sep 4, 2026· 2 min read
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Key Takeaways
  • • MS+PARTNERS, co-founded by former KKR European impact head Stanislas de Joussineau, has secured a near-€150m first close for its debut pan-European private equity buyout fund, representing approximately 50% of its €300m target.
  • • The fund's achievement marks a significant institutional validation for the newly launched firm, demonstrating investor appetite for impact-focused private equity strategies in Europe.
  • • Stanislas de Joussineau's departure from KKR to establish MS+PARTNERS reflects broader industry trends of experienced impact investment professionals launching independent vehicles to pursue dedicated thematic strategies.
Summary
MS+PARTNERS has achieved a near-€150m first close for its inaugural pan-European buyout fund, according to publisher reporting. The fund was co-founded by Stanislas de Joussineau, a former head of impact investing at KKR, signaling his transition from a major global alternative asset manager to launching an independent platform focused on European opportunities.

The €150m first close represents meaningful progress toward the firm's €300m hard target, positioning the fund at approximately the halfway mark of its fundraising objectives. This milestone indicates solid institutional traction for a debut fund from a newly independent team, particularly in the competitive European private equity landscape where established track records typically carry significant weight in LP decision-making.

The establishment of MS+PARTNERS reflects a strategic positioning around impact-oriented buyout strategies in Europe, leveraging de Joussineau's decade-plus experience structuring impact investments at a Tier 1 alternative asset platform. The fund's focus on pan-European targets suggests a diversified geographic approach across multiple developed markets rather than concentration in a single jurisdiction, which typically appeals to institutional allocators seeking regional exposure with currency diversification.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

AltAssets Ex-KKR impact head’s MS PARTNERS hits €150m first close for debut European buyout fund