This document summarizes the role of mentors in supporting entrepreneurs. It discusses Youth Business International's mentoring program, which has been implemented in Russia through the Youth Business Russia initiative. The program provides training to mentors and matches them with entrepreneurs to help improve their skills and increase the chances of business success. Over several years, the program has expanded across Russia and helped many entrepreneurs, with some mentees going on to receive awards for their businesses. Mentors play an important role in developing entrepreneurs' skills and supporting business sustainability.