App development in California

Silicon Valley in California is supposedly the center of technological innovations in the whole world. The whole world looks towards the Silicon Valley when it’s about new and innovative technological advancements. Even the mobile application developers services California are considered to be in a league of their own and they are one of the leading, if not the leading, mobile app developers in the world. The work done in the field of technology in California is the best and they have made a reputation for themselves in the technology industry. What other regions in the world are keeping pace with the tech industry in California?