Colette Lewiner entered the Ecole Normale Supérieure (a leading French higher education school) in 1964 as a physics student where she passed the highest competitive examination (agregation) for teachers in France in this field in 1968. She graduated as Doctor in Physics (PhD) in March 1973.In November 1979, after around 10 years spent as a physics researcher, she joined Electricité de France (EDF) as secretary general to the Utility's Research and Development Executive Vice President. In 1982, she moved to the Fuel Procurement Department, responsible first for fuel oil and then uranium and enrichment purchases for EDF's plants and being nominated Vice President for this department in 1987. In February 1998, Colette created the Development and Commercial Strategy Branch becoming Electricité de France's first woman Executive Vice President.Colette Lewiner joined the Cogema Group becoming Chairman of the Board, Chief Executive Officer, of SGN Eurisys Group on March 23, 1992. She expanded this 10 000 persons top class engineering Nuclear Company internationally and in the services arena.In 1998, Colette Lewiner joined Cap Gemini and created the Utilities Global Market Unit (electricity, water, gas). Since May 2000 and the merger of Cap Gemini and Ernst & Young, Colette was nominated Executive Vice President and Global Leader of the Sector Energy, Utilities and Chemicals (Oil, Gas, Utilities and Chemicals). In 2009, this overall sector represented around 13% of Capgemini's total revenue (compared to 4% in 1998) and more than 11 000 people. Capgemini is ranked by independent analysts as one of the technical services (Consulting, Technology services, Outsourcing and Professional Services) leaders in this sector.