Yves Guillemot (/ˈiːv ɡiːmoʊ/ eev gee-MOH; born 21 July 1960[1]) is a French businessman who co-founded Ubisoft with his brothers Claude, Michel, Gérard and Christian in March 1986.

[2] After earning his business degree,[4] Guillemot and his brothers founded Ubisoft in 1986 to create games, recognizing the opportunity in a growing industry that they were also passionate about.

Although not personally implicated in the misconduct, internal communications revealed that he was aware of and tolerated it for years, "as long as these managers' results exceeds their toxicity level".

[5][6] An open letter from Ubisoft employees also criticized him for his lackluster response to the scandal, which included moving accused managers to other departments rather than dismissing them, as well as a reluctance to implement necessary changes to improve the workplace culture.

[7] In a January 2023 email to staff, Guillemot told employees to take responsibility for the company's forthcoming projects, asking that "each of you be especially careful and strategic with your spending and initiatives, to ensure we're being as efficient and lean as possible" while also saying that "the ball is in your court to deliver this line-up on time and at the expected level of quality, and show everyone what we are capable of achieving.