Angel investor, entrepreneur, engineer. Partner at Real Ventures and co-founder of Acta Wireless Capital. Mark has over 20 years experience in the wireless industry as a wireless operator and entrepreneur. He was part of the founding management team of four companies, including Invertix, a pioneer in wireless instant messaging and presence, and Telecorp PCS, which was acquired by AT&T Wireless Services. Mark holds MSEE and BSEE degrees from MIT.