Advance Equity Holding is a private equity investor with a mid to long-term interest in private (unquoted) companies. It also seeks to invest in start-ups, early stage, and expanding businesses which have the potential for growth. The firm acquires shareholders' equity in all of the businesses it financially supports. It focuses to invest in the sectors including technology, communication, and networking, renewable energy, energy efficiency, software, and agriculture. The firm was founded in 2006 and is headquartered in Sofia, Bulgaria.