Download the list of Internet marketing services in California. Smartscrapers provides an accurate directory and the latest data on the number of Internet marketing services in CaliforniaThere are 8110 Internet marketing services in California as of April 1, 2026; which is an 0.00% increase from 2023. Of these locations, 6366 Internet marketing services which is 78.50% of all Internet marketing services in California are single-owner operations, while the remaining 1744 which is 21.50% are part of larger brands. The top three cities with the most Internet marketing services are Los Angeles with 2338 Internet marketing services, San Diego with 1006 Internet marketing services, San Francisco with 805 Internet marketing services. Average age of Internet marketing services in California is 6 years and 6 months.