Felix Ejeckam, Ph.D., Co-Founder & CEO
Prior to co-founding Group4 in 2003, Felix spent ten years in the management consultancy and photonics industries where he co-founded and led a VC-backed company. He is an expert in photonics, and materials science. He earned degrees in electrical/computer engineering from Rice, a master's and doctorate in electrical engineering (photonics & materials science) from Cornell.

Daniel Francis, Ph.D., Co-Founder & Chief Technical Officer
Prior to joining Group4 in 2004, Dan spent ten years co-founding two VC-backed companies that were acquired in the photonics industries. He is an expert in photonics, and materials science. He earned an undergraduate degree in physics from Oberlin, a doctorate in applied physics (photonics) from Stanford, and a post-doctoral appointment at Berkeley.

Susan Wheeler, Managing Director, E6 Ventures
Susan (Susie) Wheeler is the Managing Director E6 Group Ventures. E6 Ventures is the corporate venture fund of Element Six, part of the DeBeers Group. Susie has extensive experience in private equity and growth companies. Previously, Susie worked as VP M&A and Strategy for Boart Longyear, a portfolio company of Bain Capital, Advent and Macquarie where she drove an industry consolidation of mining services companies prior to its IPO in 2007. Prior to Boart Longyear, Susie led and participated in many small company investments and acquisitions where she further provided strategic and operational assistance to various portfolio companies. She has also served as an independent advisor to investors. Susie began her career at Bain & Company where she led client engagements in North and South America as well as Europe providing due diligence support to private equity firms. During her nine-year tenure at Bain & Company, she also led numerous strategic and operational engagements for mid-cap and large companies. Currently, Susie is a Board Director for E6 Ventures portfolio companies. She has an MBA from the Amos Tuck School at Dartmouth College and a BS from Brigham Young University.