Senior Advisors


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Rik Miller
Senior Strategic Agricultural Advisor

From 1984 to 2015, Rik worked for the DuPont Company where he held numerous successive senior leadership and management roles in sales and marketing in DuPont’s agricultural chemicals business. From 2005 to 2015, Rik was Global Business Director, Global Marketing Director, Regional Director – Europe, Middle East, and Africa, and President, respectively for DuPont Crop Protection. He also served as an Operating Team member and Corporate Officer of E.I. duPont de Nemours and Company.

He served on CropLife™ International’s Strategy Council and under appointment to the USDA Secretary of Agriculture’s Agricultural Policy Advisory Committee. In addition, he was actively involved in the National Future Farmers of America, National 4-H, United Way and March of Dimes.

Rik remains active in promoting and supporting youth development programs in agriculture through his role as a Board Member of the Montana FFA Foundation. He also currently serves on the Board of Directors of Cool Planet Energy Systems, and Douglas Products.

Rik studied at Montana State University in Bozeman, Montana, and received his B.S. in Agronomy with an emphasis in plant and soil science and plant biochemistry.

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Dr. Anthony J. Tether

Anthony J. Tether, Ph. D.
Senior Strategic Advisor

Dr. Anthony J. Tether was the Director of the Defense Advanced Research Projects Agency (DARPA) from 2001 to his retirement in 2009. DARPA is the principal Agency within the Department of Defense for research, development, and demonstration of concepts, devices, and systems that provide highly advanced new technology capabilities. As Director, Dr. Tether was responsible for management of the Agency's projects for high-payoff, innovative research and development.

He has also held positions in the Department of Defense, serving as Director of DARPA's Strategic Technology Office in 1982 through 1986, and as Director of the National Intelligence Office in the Office of the Secretary of Defense from 1978 to 1982. He served as Vice President of Systems Control, Inc., a company he helped start after receiving his Ph.D., where he applied estimation and control theory to military and commercial problems with particular concentration on development and specification of algorithms to perform real-time resource allocation and control.

Dr. Tether has served on Army, Navy and Defense Science Boards and on the Office of National Drug Control Policy Research and Development Committee. He is a member of the Institute of Electrical and Electronics Engineers (IEEE) Fellow for leadership in the advancement of commercial and defense technologies and is listed in several Who's Who publications. In 1986, he was honored with both the National Intelligence Medal and Secretary of Defense Caspar Weinberger with the Department of Defense Meritorious Service Medal. In 2009, Secretary of Defense Robert Gates honored him with the Department of Defense Outstanding Public Service Medal.

In 2009, Dr. Tether re-formed the Sequoia Group (TSG), which serves government and industrial clients.


Robert S. Walker

Robert S. Walker
Legislative and Regulatory Advisor

Congressman Robert Walker is former Chairman of the House Committee on Science, Space and Technology. During his 20 year service on that committee he championed policies to expand commercial space activities. He was the first sitting Congressman awarded NASA's highest honor, the Distinguished Service Medal. Later, he was also awarded the NASA Distinguished Public Service Medal.

In 2001 President Bush chose Walker to chair the Commission on the Future of the US Aerospace Industry and in 2004 as a member of the President's Commission on the Implementation of US Space Exploration Policy. He has served as Space Foundation chairman.


Contact Information

Zero Gravity Solutions, Inc.
190 NW Spanish River Blvd.
Boca Raton, FL 33431

Telephone: +1 561-416-0400
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