Befesa is a services company principally engaged in the collection and recycling of steel dust and aluminum residues and other related industrial services and logistics. Co. also offers industrial recycling services to hazardous waste markets. Co. organizes its activities into three business segments: steel dust recycling services, salt slags recycling services and secondary aluminum production.

Carbios SA, formerly Carbios SASU, is a France-based company engaged in green chemistry that focuses on discovering and developing enzymatic bioprocesses applied to plastic and textile polymers. The Company creates a new generation of fully biodegradable plastics with a controlled lifespan, a process enabling infinite biorecycling of plastic waste (PET) and a new biological pathway for the production of competitive biosourced polymers.

Derichebourg provides services to businesses and to local and municipal authorities. Co. covers the entire waste recycling chain, from collection through to recuperation, as well as a range of services to businesses and to local and municipal authorities. Co.'s activities can be divided into three segments: Environmental Services segment which is engaged in the processing and disposal of waste and of end-of-life products; Business Services segment which offers a range of front end services (reception, cleaning, energy, parks and gardens maintenance, temporary workers) and Airport Services segment which provides outsourced airport services like services for stopover management and airfreight.

Orege SA is a France-based company active in the environmental industry. The Company offers solutions of the treatment of effluents, such as wastewater and sludge, for industrials in the oil and gas, petrochemical and chemical sectors, as well as for the food and beverage and municipals industries. It provides water treatment units, which are later operated by customers in partnership with the Company, and water purification services, which involve the setting up for a determined period of time (from one month to over a year depending on the case) of a treatment on the customers site for one-off treatment work. In March 2014, Eren's stake in the Company increased up to 69.22% of capital and 60.52% of voting rights as result of takeover bid launched together with certain shareholders. In March 2014, Eren SA acquired 48.9% of the Company.

Seche Environnement offers environmental management solutions for industrial clients or local authorities. Co. operates waste treatment and recovery facilities and develops tools to produce energy from waste. Co. also collects and sorts all types of waste, whether household or industrial, hazardous or non-hazardous. For local authorities, Co. manages household waste and other environmental concerns. Co. is engaged in thermal treatment, storage, methanization of household waste and production of alternative fuels. For industrial clients, Co. has developed products and services for handling industrial waste from waste production sites to elimination facilities.

Veolia Environnement provides environmental management services to public authorities, industrial and commercial services customers, and individuals worldwide. These services include the supply of water, the treatment and recovery of municipal or industrial effluent, waste collection, processing and recycling, the supply of heating and cooling services and the optimization of industrial processes. Co.'s business operations are conducted through three divisions, each specializing in a single business sector: Veolia Eau (Water), Veolia Energie (Dalkia, Energy Services) and Veolia Proprete (Environmental Services).