A leading private equity investor

A pioneering private equity investor in France, IDI invests amounts ranging from €15-50 million in small and mid-cap companies valued at between €10 and €150 million, and up to €250 million alongside co-investors. Experts in LBOs and growth capital, our permanent company investment structure is a source of great flexibility for supporting entrepreneurs’ bold plans for growth, either as majority or minority shareholders.

All our investments

To see the bigger picture, all you need do is change your perspective

We identify projects with strong potential, draw up ambitious strategies alongside management teams and galvanise the teams and financial resources needed to transform the companies we support into European and international leaders.

Decisions at IDI are taken via short, exclusively internal decision-making circuits. Moreover, the deliberately limited size of our investment portfolio and our entrepreneurial mindset give us the responsiveness and agility required to swiftly seize growth opportunities.

We regard ourselves first and foremost as entrepreneurs rather than investors: as such, we prioritise arrangements in which members of management are also shareholders. These managers become our partners and our interests are perfectly aligned. Proactive but not intrusive, we share our expertise in order to drive major structural growth projects by advising on best practices, financial optimisation, strategic guidelines, etc.

To help businesses fulfil their potential, we put them in touch with our expert network and do our utmost to ensure the success of their growth plans, including through mergers and acquisitions in France and abroad, and helping them overcome the ensuing challenges of integration. Our subsidiary IDI Emerging Markets provides expertise and assistance in emerging countries.

We are an independent investment firm with a permanent structure, as distinct from other investment fund managers: we hold our investments for a flexible duration specifically tailored to each company. We are not obliged to sell our investments in a given year for extraneous reasons such as fundraising or fund closures, and we take the time to maximise value creation.

IDI in figures

investments in small and mid-caps


million equity


million investment capacity


IRR since 1991


The IDI team

Our team of 11 investors offers a practical approach to supporting companies’ growth, combining professionalism with enthusiasm.

Christian Langlois-MeurinneCEO
Executive Committee

Julien BentzManaging Partner
Executive Committee

Marco de AlfaroPartner
Executive Committee

Tatiana NourissatCorporate Secretary and General Counsel - ESG Manager
Executive Committee

meet the whole team

50 years
of trust

IDI has existed for more than 50 years and was one of the first private equity firms to be established in France. As an independent listed company, IDI stands out for its stability, visibility and transparency. Underpinned by a robust corporate structure, our support as a corporate investor is a reassuring sign for employees and partners alike. Besides this, we have the capacity to invest in regulated sectors. Lastly, as responsible investors, social and environmental considerations are fully integrated into in our investment decision-making processes.


We have the skills and financial resources needed to help portfolio companies pursue their external growth strategy, whether in France or overseas, with the same goals in mind: stronger positioning and long-term development.

With the expertise of its subsidiary IDI Emerging Markets ($650M in assets under management), the group also operates in private equity in emerging countries.