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Ryan Gilliam, Ph.D.

Chief Executive Officer

Dr. Gilliam joined Calera as a Scientist in 2008. Since that time, he as held the titles VP of Carbon Conversion Research, Chief Science Officer, President of Chemicals and now Chief Executive Officer. Dr. Gilliam obtained his Ph.D. from the University of Toronto in Materials Science and Engineering. On his work in catalysis and electrochemistry, Dr. Gilliam has 10 peer reviewed publications and has presented his work at multiple international conferences. He is an inventor on 13 U.S. Patents and an additional 27 foreign patents pertaining to Calera’s work.


Randy Seeker, Ph.D.

Chief Technical Officer

Dr. Seeker has thirty-five years of experience in developing and scaling up a broad range of industrial technologies including combustion, air pollution control and monitoring, chemical processes and conventional and advanced power systems. Before joining Calera, he was the new product development manager at GE Energy Environmental Services. He served on the U. S. Environmental Protection Agency's Science Advisory Board for over ten years and has served on several U.S. National Academy of Science panels. He has 43 patents related to his process development activities.  Dr. Seeker is an adjunct professor in the Mechanical Engineering department at the University of California, Irvine. Dr. Seeker earned a B.S. from New Mexico State University, and an M.S. and Ph.D. in Engineering from Kansas State University.


Jill Aufricht, CPA

Chief Financial Officer

Ms. Aufricht joined Calera in 2007 and leads the company’s finance and administration organization. She has over twenty years’ experience guiding emerging and high growth technology companies through a variety of financial and operational matters from start up through commercialization, international expansion, S-1 filing and M&A transactions.


Prior to Calera, Ms. Aufricht served as Vice President of Finance and Administration for Skeletal Kinetics where she raised the company’s equity financing and led the organization from start up through commercialization, culminating in a successful sale of the company. She began her career as an auditor with Price Waterhouse. She is a Certified Public Accountant in the State of California.