Groupe IDI activity is divided in two areas: through its subsidiaries, EURIDI and Marco Polo Investissements, Co. is engaged in management buy-out/buy-in and growth capital investments in French small-mid caps valued between Euro7,000,000 and Euro75,000,000 also, through its subsidiary, IDI Mezzanine, is engaged in mezzanine financing. Also Co. is active in the purchase of secondary market portfolio.

Thermador Groupe. Thermador Groupe SA is a France-based holding company engaged in the distribution of specialized plumbing equipment materials, such as taps, pumps and heating equipment. The Company operates through a number of subsidiaries, including Sferaco, which is engaged in the construction of industrial valves and fittings; Sectoriel, which manufactures motorization for valves; Jetly, which produces domestic pumps and accessories as well as lifting stations; Thermador, which distributes central heating and hot domestic water circuit components; Thermador International, which specializes in exporting the Company's products in Europe; PBtub, which is specialized in the distribution of synthetic material tubes for under-floor heating and distribution of domestic water; Isocel, which constructs boiler and parts; Dipra, which furnishes retail stores in do-it-yourself (DIY) products; Opaline, which is the Company's communications agency, Domac and FGINOX.

Transgene is a biopharmaceutical company that designs and develops immunotherapy and virotherapy products for the treatment of cancers and infectious diseases. Co. is developing three anti-cancer products that are in clinical trials: (cancer of the lungs, liver and oropharynx); two anti-infectious immunotherapy products also in clinical trials: (hepatitis B and C). Co. also has products in the pre-clinical development stage. Co. operates in a single business segment, the research and development of therapeutic vaccines and immunotherapy products. Co. does not have any products on the market. Substantially all of its operations are conducted in France.