Management Team


Core Team

Technical & Engineering

Global Affairs & Partnerships

Sales & Marketing

Business & Stakeholder Engagement


Other Experts and Consultants

John Mathieson

After 44 years in the nuclear industry, John retired in 2020 as the Head of International Relations for the UK’s Nuclear Decommissioning Authority. Here he led the NDA’s collaborations with counterpart organizations in other countries, including the US and Canada. 17 years of his career was spent in geological disposal which included helping establish waste management organizations in several Central and Eastern European countries. John spent the first 14 years of his career as a Health Physicist. He now has his own consultancy and works extensively with the International Atomic Energy Agency on decommissioning, waste management, and infrastructure readiness.

Ethan Bates, Systems Engineer

A nuclear and systems engineer, Ethan uniquely dedicated his undergraduate and graduate years at MIT to advancing deep borehole disposal technology. His Ph.D. thesis was the first to integrate thermal, geologic, safety, and economic models to optimize deep borehole disposal and introduced improvements in plug design, canister materials, and emplacement methods. His contributions to the field earned him awards from the Department of Energy (DOE) in 2011 and the American Nuclear Society (ANS) in 2013. After graduation, he spent 6 years as a reactor and systems engineer with successful startups (TerraPower and Oklo) licensing advanced nuclear reactors and establishing himself as an expert on sodium fast reactor design, safety, and product development.

Rob Utter, Technical Advisor

CEO of New Ventures Energy Consulting. Retired after a 31-year career with Schlumberger focused on drilling and well construction globally. Specific focus on horizontal well drilling and new technology development and applications, business development, and strategic M&A activity for Schlumberger. International posting including Latin America, Asia, and the Middle East. Facilitated and led the acquisition and integration of several Schlumberger mergers. Post-retirement activities include three board of director positions, two technology and strategic business advisor positions, and ongoing engagements with several technology developers.

Mark Frei, Senior Technical Advisor

Mark has more than 40 years of experience in nuclear energy, Cold War-related environmental cleanup, and nuclear waste disposal. He served in senior executive positions at the Department of Energy, including as Deputy Assistant Secretary and as Manager of the Idaho Operations Office. He also led the effort to get the Waste Isolation Pilot Plant ready to dispose of defense-generated transuranic waste. He now consults for a variety of companies involved in environmental cleanup, but is most passionate about solving the commercial spent fuel disposal problem.

John Grimsich, Technical Consultant

A technical staff member at UC Berkeley’s Environmental Planetary Science Labs, Grimsich oversees and maintains EPS labs, specialized equipment, and machine shops. He has expertise in geology and electron backscatter diffraction (EBSD), X-ray Diffraction (XRD), and Inductively Coupled Plasma Mass Spectrometry (ICP-MS), with experience in isotopic systems relevant to deep geologic repositories.

John Apps, Geochemist

After eight years of research into copper recovery from mine waste, Apps joined the Lawrence Berkeley National Laboratory where he developed a geochemistry research program for the Basalt Waste Isolation Project at the Hanford Reservation. He was a Department Head and Staff Senior Scientist of LBL’s Earth Sciences Division and conducted research programs addressing environmental and mission-oriented issues relating to nuclear and hazardous waste disposal and containment, including the Yucca Mountain Project.

Mike McBride, Legal Counsel

His practice is focused on litigation, arbitration, mediation, and negotiations involving transportation, energy, and environmental issues, as well as nuclear regulatory matters. McBride’s clients have included electric utilities, the American Petroleum Institute, and Edison Electric Institute.

Jonathon Angell, Business Development

Silicon Valley business advisor with over 20 years’ experience, from startups to Fortune 500 companies. He has executed company strategies leading to increased market share, brand dominance, return on investment, and high valuations for equity holders. Angell has worked with companies such as Hitachi, Toyota, General Motors, Phillips, Merrill Lynch, and Ubisoft.

Jamie Rector, Senior Geoengineer

Founded and successfully sold three borehole geophysics companies to NYSE-listed companies. Also founded Berkeley GeoImaging, which developed and currently manages oil and gas assets in the Midcontinent, Rockies, and Gulf of Mexico. Rector been a Senior Consultant to BP, Chevron, and Unocal on borehole seismic technology and is the founder of the oil and gas PE fund (Berkeley GeoImaging). He has raised over $80 million to drill boreholes for oil and gas throughout the United States.