IDI SA (IDIP.PA) is a pioneering French private equity firm that invests €25-70 million in small and mid-cap companies valued between €10-150 million, and up to €250 million alongside co-investors, specializing in leveraged buyouts (LBOs), growth capital, expansion financing, and minority or majority stakes in sectors including software, industry, healthcare, e-commerce, education, sports, culture, and services. The company targets French and European SMEs and SMIs, offering expertise in mergers and acquisitions, mezzanine financing, and secondary portfolios; its portfolio includes Forsk (mobile network planning software), Intersoft Electronics Group (radar systems), TTK (liquid leak detection), Exsto (high-performance elastomers), Omnes Capital (investment management), PLC (cosmetics and supplements), Natural Grass (hybrid turf), Culturespaces (cultural site management), Ekosport (outdoor retail), Talis Education Group (vocational training), Groupe Positive (SaaS marketing solutions), S4BT (business hotel bookings), Freeland (freelance payroll), Dubbing Brothers (multilingual dubbing), CFDP Assurances (legal protection), and Winncare Group (medical equipment for autonomy prevention). Founded over 50 years ago and headquartered in Paris, France, IDI operates primarily in Europe with additional exposure to emerging markets through subsidiary IDI Emerging Markets, managing $650 million in assets. Recent developments include the July 2025 finalization of a majority stake acquisition in Forsk; June 2025 majority investment in Belgian Intersoft Electronics Group (IE) and support for Natural Grass's acquisition of TSE for golf and football renovation services; April 2025 promotion of Jonathan Coll and Arnaud Pierucci; March 2025 divestment of Groupe CDS; December 2024 backing of Ekosport's acquisition of Dutch SkiWebShop; and October 2024 minority stake in TTK, alongside 2024 annual results showing consolidated equity of €696 million and net asset value per share up 2.42% to €91.52.