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Flexstone Partners

Flexstone Partners

Paris, Île-de-Franceflexstonepartners.com

Overview

Flexstone Partners is a global private investments firm delivering customized solutions across small- and mid-cap markets of private equity, real estate, private debt and infrastructure . Flexstone Partners specializes in the selection of private equity, mezzanine and infrastructure fund managers and makes primary and secondary investments as well as co-investments . The firm is an affiliate of Natixis Investment Managers, one of the world's largest asset managers .

Year Founded

2005

AUM

$6.3B

Portfolio Companies

7

Investments

Flexstone Partners investments
CompanyDateStageLead
Kandou AINov 2020Series C ExtensionCo-investor
EcorobotixOct 2025Series DCo-investor
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Sector & Stage Mix

Industry, funding stage, and valuation band breakdowns.

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SeedSeries ASeries BGrowth

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Investment Activity

Yearly cadence, pace, and funding raised over time.

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2021
2022
2023
2024
2025
2026

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FAQ

Where is Flexstone Partners based?

Flexstone Partners is headquartered in Paris, Île-de-France, France.

When was Flexstone Partners founded?

Flexstone Partners was founded in 2005.

How many portfolio companies does Flexstone Partners have?

Flexstone Partners has 7 portfolio companies in Caplight's dataset.

What are some companies in Flexstone Partners's portfolio?

Portfolio companies visible on Caplight include Kandou AI, Ecorobotix.

What was Flexstone Partners's most recent investment shown here?

Flexstone Partners's most recent investment in this portfolio sample was in Ecorobotix in 2025.

What sectors does Flexstone Partners focus on?

Flexstone Partners focuses on Healthcare & Life Sciences, Frontier & Industrial Tech, Enterprise Software, Energy & Sustainability, Energy & Sustainability, Mobility, Transportation & Logistics, AI, Data & Cloud Infrastructure, Healthcare & Life Sciences, Telecommunications & Networking, Healthcare & Life Sciences, Frontier & Industrial Tech, Frontier & Industrial Tech, AI, Data & Cloud Infrastructure.

What company stages does Flexstone Partners focus on?

Flexstone Partners typically invests at the Late stage.

What is Flexstone Partners's AUM?

Flexstone Partners's assets under management are estimated between $1.0B and $10.0B.

Firmographic Details

HeadquartersParis, Île-de-France
Year Founded2005
AUM$6.3B

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