Various folks have said this at one time or another on the forum. From the Besson web site
2006
By joining the Buffet Crampon Group in 2006, Besson restructured and relaunched its production of professional instruments in Germany and France. The Besson student instruments continue to be manufactured in the factory near Delhi, in India, under the supervision of specialists from the Buffet Crampon Group. A global leader in professional-level clarinets, Buffet Crampon applies all of its technical, acoustic, organizational and marketing talent, as well as its international distribution network, to the Besson brand.
Bob Tampa FL USA
Euph -- 1984 B&H Round Stamp Sovereign 967 / 1978 Besson NS 767 / Early 90s Sterling MP: 4AL and GW Carbonaria
Tuba -- 2014 Wisemann 900 CC / 2013 Mack 410 MP: Blokepiece Symphony American Shank and 33.2 #2 Rim