Founded in 1992 in Paris by Didier Calmels, Développement et Partenariat focuses on investing in seed and early stage ventures in France. They have a diverse portfolio of companies including Decayeux SAS, Octime, Orrion Chemicals, DxO Labs, Optimark Group, DarkWorks, and Moving Group. Their investment strategy is centered around small and medium-sized enterprises (SMEs) with a turnover between 5 million and 50 million euros. They aim to support the growth and development of these companies by preserving existing shareholders and management teams or partnering with financially involved managerial teams. Développement et Partenariat manages over €180 million through various funds and targets sectors such as Commercial Products, Business Products and Services (B2B), Manufacturing, TMT, and Industrials.