EssilorLuxottica SA is a Franco-Italian vertically integrated multinational holding company registered in Charenton-Le-Pont and headquartered in nearby Paris. It designs, produces and markets ophthalmic lenses, equipment and instruments, prescription glasses and sunglasses. It was founded on 1 October 2018 and its name is an amalgamation of the two major corporations which merged to create it; the French Essilor and the Italian Luxottica. The two companies have, since the merger, been restructured as subsidiaries of the new entity. Under the terms of the merger agreement, Essilor would purchase Luxottica, but Luxottica's leadership would be guaranteed prominent positions in the newly-formed corporation as well as some seats on its board of directors; Luxottica founder, Leonardo Del Vecchio, was notably designated chairman. The first few years of EssilorLuxottica post-merger were marred by disputes over leadership roles, but Del Vecchio was able to bring them to a satisfactory end. Essilor and Luxottica were respectively the world's leading manufacturers of ophthalmic lenses and of eyeglasses; upon the merger, EssilorLuxottica thus became a monopoly. Wikipedia