Without starting a rant myself about people that think C++ has nothing to offer over C, what is in your opinions then the reason for any large company to develo

Without starting a rant myself about people that think C++ has nothing to offer over C, what is in your opinions then the reason for any large company to develop their code in C++ and not C? I'm thinking of virtually all Adobe Products, anything related to the creative industry really, Google, CERN, Microsoft... No-one in their right mind would try to develop Adobe Photoshop in C.