Santa Monica-based Revolution Prep, an academic testing and tutoring preparation company, has scored private equity funding from Apax Digital Fund. Size of the funding was not announced. According to Apax Digital, the new funding will go to expand Revolution Prep's offering and to increase access to its online tutoring services. The companies said that Revolution Prep has been in the business for over 20 years, and has served more than 1 million families. The company's professional tutors are all full time employees of Revolution Prep.