There are many companies that offer these services as a do it for you. I would recommend you look at a local business vs the services that are offered on line. I am in the LA area and just set up a corporation using the local resource. If they are legit, they will all charge within the same price range. I would look into the LLC vs a CCorp. If you wish to do it yourself, the forms and procedures can be found on the State of California's website. Nothing too complicated, but the process is time consuming.