1984

Joël Séché takes over his family's small construction business and uses his determination and vision to gradually reposition the company in the environment industry.

1985

Opening of a Class II WasteAccording to French Act No. 75-633 of July 15, 1975, any residue from the production, transformation process or use of any substance, material, product or more ... Storage facility (non-hazardous waste) in Changé (Western France).

Since then, Joël Séché has always attached great importance to pursuing permanent dialogue with local residents and all stakeholders.

1994

Creation of a "waste business park". This innovative concept groups together multiple service offers for the treatmentPhysical, thermal, chemical or biological processes, including sorting, which modify the characteristics of waste so as to reduce its volume and dangerous ... of wasteAccording to French Act No. 75-633 of July 15, 1975, any residue from the production, transformation process or use of any substance, material, product or more ... generated by local authorities and industrial clients. Opening of a Class 1 wasteAccording to French Act No. 75-633 of July 15, 1975, any residue from the production, transformation process or use of any substance, material, product or more ... storage facility for industrial waste.

1996

The company's original positioning advocating sustainable development is recognized via its ISO 14001Standards related to environmental management environmental certification. It is the first certification of its kind awarded to this sector in the world.

Opening of a biocenterCollective industrial center for the biotreatment of polluted soils. and a treatmentPhysical, thermal, chemical or biological processes, including sorting, which modify the characteristics of waste so as to reduce its volume and dangerous ... unit for Infectious Medical Waste.

1997

Initial public offering on the Second Marché of the Paris Bourse.

2001

The acquisition of Alcor confers national prominence on the company, catapulting the Group into a leadership position in the wasteAccording to French Act No. 75-633 of July 15, 1975, any residue from the production, transformation process or use of any substance, material, product or more ... business in France.

2002

The acquisition of Trédi, a specialist in incinerationTreatment based on combustion with excess air. This treatment can be carried out with or without energy recovery. The European directive of 4 December 2000 on ... and the physical-chemical treatmentThese treatments include emulsion breaking, neutralization, dechromatation, cyanide removal, dewatering, resin regeneration and dechlorination. of hazardous wasteAccording to French Act No. 75-633 of July 15, 1975, any residue from the production, transformation process or use of any substance, material, product or more ... contributes to strengthening the Group's position vis à vis industrial clients.

The company wins the first occupational health and safety certification under OHSAS 18001An occupational health and safety management system specification (Occupational Health and Safety Assessment Series) standards awarded to a wasteAccording to French Act No. 75-633 of July 15, 1975, any residue from the production, transformation process or use of any substance, material, product or more ... treatmentPhysical, thermal, chemical or biological processes, including sorting, which modify the characteristics of waste so as to reduce its volume and dangerous ... company in France.

2004

The Group refocuses on its core business: the treatmentPhysical, thermal, chemical or biological processes, including sorting, which modify the characteristics of waste so as to reduce its volume and dangerous ... and storage of waste. All the Group's human and financial resources are concentrated on attaining this objective and, secondary activities (collection, sorting, etc.) that were among the assets acquired from Alcor and Trédi are sold to professionals in these businesses.

2005

Expansion of authorized capacity at the Trédi Salaise, Drimm and SVO facilities.

2006

Participation in major site rehabilitation projects outside of France : Abidjan

2007

Acquisition of a 33% stake in SAUR (the No. 3 private water company in France). Caisse des Dépôts (47%) and Axa (20%) share the remainder of the share capital.

2008

Joël Séché becomes SAUR's Executive Chairman.

2010

The urban community of Strasbourg awards the management of its incinerator to Séché Environnement as part of a Public Service Delegation agreement. A division is created for this task: Sénerval.

Séché is the awardee of a contract to rehabilitate the La Gabarre landfill in Guadeloupe.