Michael brings over a decade of technology and business experience to Mark Cuban Companies. He has a proven history of strategic planning, leadership, product development, and operations in both startups and mature companies. Michael is responsible for deal flow and manages internet and technology strategy for MCC portfolio companies. He previously founded Taglyn GPS Tracking, specializing in small fleet management, before selling it to a private company in 2011. Prior to Taglyn, Michael spent nine years as founder and president of eLocomotive Design, which built custom software and websites. He brings a depth of first-hand entrepreneurial knowledge and operational expertise to every transaction. Michael is an active mentor with TechStars Austin. He is passionate about helping founders turn their startup into fully functional and profitable enterprises.

Mark Cuban Companies

The Mark Cuban Companies portfolio includes web and technology investments along with product focused companies like those seen on Shark Tank. The MCC in house team handles deal flow and assist in every facet of making the companies successful.

The Angel Forum

The Angel Forum is a free event for both angels and entrepreneurs that builds the entrepreneurial ecosystem by curating high quality entrepreneurs and helping them meet active angels.


Through speaking opprotunities, interviews, and articles Michael Johnstone enjoys engaging with entrepreneurs and the startup community.

Office Hours

Michael reserves a little time each week for office hours with the companies he mentors. If you'd like to request time, you can do so here.