Fund of Funds

Flexstone Partners

Flexstone Partners is the private equity fund-of-funds arm of Natixis Investment Managers, managing diversified private equity portfolios through primary commitments, co-investments, and secondaries.

Assets Under Management
$10
As of 2025-12-31
Alternatives Allocation
100%
of total portfolio
Headquarters
Paris, France
Asset Classes
Private EquityCo-InvestmentsSecondaries

Overview

Flexstone Partners is a private equity fund-of-funds manager affiliated with Natixis Investment Managers, one of the world’s largest asset management groups. The firm manages approximately EUR 10 billion in private equity assets from offices in Paris, New York, Singapore, and Geneva.

Flexstone’s investment strategy focuses on small and mid-market private equity, where the firm believes operational value creation drives returns more than financial engineering. The firm invests through primary fund commitments, secondary acquisitions, and an active co-investment program, providing investors with diversified access to mid-market buyout and growth equity returns.

The firm was formed through the combination of several Natixis-affiliated private equity teams, bringing together European and North American mid-market expertise under a unified brand. Flexstone’s global platform covers GPs across major private equity markets, with particular depth in Continental Europe, where the firm’s Paris headquarters provides strong access to French and Southern European managers.

How to Approach

GPs managing small and mid-market buyout or growth equity funds should consider Flexstone Partners as a potential LP. The firm has particular interest in European and North American managers with fund sizes between EUR 100 million and EUR 2 billion.

Flexstone conducts thorough institutional due diligence with emphasis on operational value creation capabilities, team stability, and strategy consistency. The firm values GPs who demonstrate discipline on entry valuation and leverage, and who have hands-on approaches to portfolio company management. GPs with active co-investment programs will receive additional consideration, as Flexstone has dedicated co-investment capabilities alongside its fund-of-funds program.

FAQ

Frequently Asked Questions

What is the relationship between Flexstone Partners and Natixis?

Flexstone Partners is an affiliate of Natixis Investment Managers, one of the largest asset management groups globally. Operating within the Natixis platform provides Flexstone with institutional infrastructure, global distribution capabilities, and access to a broad client network. The investment team maintains independence in its GP selection and portfolio construction decisions.

What is Flexstone Partners' investment focus?

Flexstone Partners focuses on small and mid-market private equity, investing in buyout and growth equity funds with particular strength in Europe and North America. The firm invests through primary fund commitments, secondary transactions, and an active co-investment program. Flexstone's strategy targets the segment of the market where operational value creation opportunities are most compelling.

How large are Flexstone Partners' fund commitments?

Flexstone Partners typically commits EUR 10 million to EUR 50 million to individual fund partnerships, with a focus on small and mid-market managers. The firm's co-investment program deploys EUR 5 million to EUR 25 million per transaction alongside GP partners. Flexstone manages capital through commingled fund vehicles and customized separate accounts for institutional clients.

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