Shareholders, on the other hand, own shares in the company and may vote on important matters like electing directors and amending bylaws. A business entity can be formed in California online at bizfileOnline.sos.ca.gov.Filing tips are included with most online forms. Unless the corporation has less than three shareholders, California professional corporations must have at least three directors on their board. To get started, you'll need to obtain the official form from the California Secretary of State's office and fill it out accurately or file online. 5. Appoint your Corporate Directors. This form is used to list the ownership roster for the business. Please fully complete all applicable sections. 1. ♢ Members of the board of directors, corporate officers, and other persons with similar responsibilities. In Sacramento, call (916) 874-6334. 2.