Private Equity FundPuts its own capital into companiesActive · deal in last 18 monthsLAST VERIFIED Oct 2026 · 10 SOURCES

IDI

Majority-controlled by its managing general partner (gérant-commandité) Ancelle et Associés

Also known as Groupe IDI

Paris-listed private equity investment company investing its own capital in French and European SMEs via LBO and growth deals of €25–70m; consolidated equity €774.5m at June 2026.

HEADQUARTERS: Paris, France
FOUNDED: —
AUM: —
OUTSIDE CAPITAL: Yes
TEAM LISTED: 9 people

Focus

STAGES: GrowthBuyout
SECTORS: Software & SaaS Industrial & Manufacturing Consumer & E-commerce Media & Entertainment
ASSET MIX: Private equityDirect investmentsFunds (as LP)
GEOGRAPHY: FranceEurope

Investment arms & vehicles

IdiCo
Third-party management: European small and lower mid-cap private equity and private debt
idiem (IDI Emerging Markets)
Third-party management: private equity in emerging and high-growth markets

Overview

IDI is a listed investment company (société en commandite par actions) that invests its own capital in French and European SMEs and mid-caps valued at €10–150m (up to €250m with co-investors), through majority or minority LBO and growth capital deals. It is majority-controlled by Ancelle et Associés, its managing general partner, chaired by Christian Langlois-Meurinne, who led the buyout of IDI in 1987. The group also manages third-party money through IdiCo (European small and lower mid-cap private equity and private debt) and idiem (emerging-market private equity, $650m under management). IDI reports a 15.36% net IRR since 1991 and consolidated equity of €774.5m at 30 June 2026.

Investment thesis

LBO and growth capital, directly or indirectly, in SMEs and mid-sized companies valued at €10–150m (up to €250m with co-investment), tickets of €25–70m; also fund investments (mainly secondaries) and co-investments; preference for international platforms built through acquisitions.

PORTFOLIO (12)

Omnes CapitalNOTABLE
CulturespacesNOTABLE
Media & Entertainment
Forsk
Software & SaaS · since 2025
Intersoft Electronics Group
Industrial & Manufacturing
S4BT (Solutions for Business Travel)
Software & SaaS
TTK
Industrial & Manufacturing
Exsto
Industrial & Manufacturing
Groupe PLC (Prévost Laboratory Concept)
Consumer & E-commerce
Natural Grass
Ekosport
Consumer & E-commerce
Groupe Positive
Software & SaaS
Winncare Group
Exclusive negotiations to sell IDI's stake (March 2026)

People

Christian Langlois-Meurinne
CEO; Chairman of Ancelle & Associés (managing general partner) · source
Julien Bentz
Managing Partner; Chairman of idiCo · source
Tatiana Nourissat
Corporate Secretary and General Counsel, Head of ESG · source
Jonathan Coll
Partner · source
Augustin Harrel-Courtes
Partner · source
Jonas Bouaouli
Directeur Associé · source
Arnaud Pierucci
Investment Director · source
Sébastien Chaigne
Operating Partner · source
Luce Gendry
Chair of the Supervisory Board · source

Frequently asked questions

IDI is a private equity fund based in Paris, France.

Yes. IDI invests its own capital in private companies. It also commits capital to third-party funds as an LP.

IDI invests at Growth and Buyout stages in Software & SaaS, Industrial & Manufacturing, Consumer & E-commerce and Media & Entertainment.

IDI's stated ticket size is €25M–€70M.

Key people at IDI include Christian Langlois-Meurinne (CEO; Chairman of Ancelle & Associés (managing general partner)), Julien Bentz (Managing Partner; Chairman of idiCo), Tatiana Nourissat (Corporate Secretary and General Counsel, Head of ESG) and Jonathan Coll (Partner).

IDI's investments include Omnes Capital, Culturespaces, Forsk, Intersoft Electronics Group, S4BT (Solutions for Business Travel), TTK, Exsto and Groupe PLC (Prévost Laboratory Concept), among others.

The most recent publicly reported investment by IDI is Forsk (Majority acquisition), announced in Jul 2025.

Yes. IDI manages capital from outside investors.