• Rhône-Poulenc Company,Vitry, 1980-84.
  • ORIS,Orsay 1987-88.
  • TechSep,Miribel 1990-96.
  • Norton, Cergy, 1985-88.
  • DMF,Paris, 1988-1992.
  • Baxter (Belgium), Deknatel (USA), SGN Saint Quentin Yvelines, 1996-97.
  • A.P.C. International, Chateau Thierry,1993 and 1998
  • Expert on medical malpratice (hemodialysis and plasmapheresis) for a Michigan law firm.