# Flexstone Partners

Flexstone Partners is a Private Equity based in New York, Paris, Geneva, Singapore, United States.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** New York, Paris, Geneva, Singapore, United States
- **Region:** North America
- **Address:** 575 Fifth Avenue, 22nd Floor, New York, NY 10017, USA
- **Founded:** 2019
- **Assets under management:** $12.4B
- **Website:** flexstonepartners.com
- **LinkedIn:** https://www.linkedin.com/company/flexstonepartners

## Regulatory record

- **CRD number:** 147353
- **SEC file number:** 801-69478
- **Registration status:** Registered
- **Reports private funds:** Yes
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/147353

## About

Flexstone Partners was established in 2019. It functions as a dedicated private equity platform within the Natixis Investment Managers group. The firm deploys capital through primary fund commitments, secondaries, and co-investments. Strategies include buyout, growth equity, venture, and special situations. Geographic coverage spans North America, Europe, and Asia. No specific portfolio holdings appear in available records. AUM stands at 10.3 billion USD. The firm lists four offices outside its Swiss headquarters. No dated operational events from the last 24 months are recorded. Flexstone maintains a fund-of-funds structure with direct co-investment capability. Its affiliate relationship with Natixis provides distribution scale while preserving a specialist private equity focus.

## Sectors

- Private Equity
- Real Estate
- Private Debt
- Infrastructure

## Offices

- Paris, France
- Geneva, Switzerland
- Singapore

## Questions

### How does Flexstone Partners source its small- and mid-cap deal flow?

Flexstone’s team of over 65 professionals reviews 600-plus investment opportunities globally each year, according to the firm. Presence in New York, Paris, Geneva, and Singapore provides local origination networks in North America, Europe, and Asia. Deal flow comes from long-standing general partner relationships and direct prospecting in the sub-$1 billion fund market.

### Is Flexstone Partners an independent firm or part of a larger financial group?

It operates as an affiliate of Natixis Investment Managers, one of the world’s largest asset managers, which provides access to global resources and infrastructure. Despite the parent-subsidiary relationship, Flexstone maintains an entrepreneurial investment culture and autonomy in manager selection. The firm’s structure separates investment decision-making from the parent’s balance sheet.

### What is Flexstone’s approach to ESG integration?

Flexstone has been a signatory to the United Nations Principles for Responsible Investment since 2014, per its website. It seeks to invest in managers and companies that manage environmental impact, adhere to fair labor standards, and follow sustainable business practices. ESG analysis is part of its manager due-diligence and ongoing monitoring processes.

### What types of private investments does Flexstone target?

The firm invests across private equity, real estate, private debt, and infrastructure. Its specialization lies in the small- and mid-cap segment, which it identifies as a hard-to-access area offering greater inefficiencies. Exposure is built through primary fund commitments, co-investments, and secondary transactions globally.

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Last updated: 2026-07-10T23:34:45.000Z

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