Partners
All Predicus partners have long-standing business and personal relationships among themselves that extend over 25 years or more in addition to serving a myriad of commercial and government clients throughout the world.
David L. Pentz
Founding Partner
David Pentz is an engineer with more than 40 years of professional experience in the mining, nuclear, civil, and environmental, and petroleum industries. His business consulting experience includes a detailed knowledge of mines in hard and soft rock, from the feasibility stage through operations and closure. He has detailed understanding of the commercial and nonproliferation aspects of the nuclear fuel cycle. He has participated in public and government hearings on nuclear fuel cycle issues. In addition, he has had broad P&L responsibility for businesses in excess of $180 million per annum. He has detailed knowledge about the application of probabilistic risk assessment methodology and has extensive experience in the process of expert elicitation of uncertainties in a probabilistic framework. David is the co-creator of the probabilistic risk assessment concept that led to the technology known as GoldSim, used at Yucca Mountain by the DOE and NRC and on a broad variety of other projects. He has authored over 40 professional papers.
Ralph Stoll
President
Ralph Stoll is an engineer with over 38 years of experience in business development, strategic planning, and project management. His business experience includes detailed knowledge of the nuclear fuel cycle including naval nuclear power plant operations, fissile material disposition and international nuclear waste management. He was a venture partner for operations in a private equity investment company funding the direct commercialization of intellectual property where he developed procedures and processes to analyze over 150 technologies for initial investments. An experienced leader and project manager, he completed a 27-year career in the United States Navy in the rank of Captain, commanded three nuclear-powered submarines, and while at NATO Headquarters in Brussels, Belgium in the early 1990s started the first military cooperation programs with Russia and other countries of the former Soviet Union.
R. Ian Miller
Partner
Ian Miller, a specialist in systems modeling, is also a Principal of GoldSim Technology Group LLC. His over 30 years of project experience includes probabilistic performance assessments of nuclear waste repositories, and risk assessments of Arctic pipelines, uranium mine tailings, hazardous waste landfills, and industrial site contamination. He led the development of the GoldSim simulator, which is used worldwide for probabilistic analyses of complex systems such as safety analyses of nuclear waste repositories, planning of mines and their environmental impacts and strategic planning. He has also participated in numerous studies involving groundwater flow and solute transport modeling and underground stress analysis.
John T. Greeves
Partner
John Greeves is an engineer with 35 years of experience providing leadership on risk-informed and performance-based regulatory processes and evaluation of regulatory strategy. He supervised and helped develop both regulations and guidance to implement risk-informed, performance-based approaches to siting, design and construction of nuclear facilities. As an NRC staff director, he was responsible for development and promulgation of NRC’s first fully risk-oriented rule making, 10 CFR Part 63: Disposal of High Level Radioactive Wastes in a Geologic Repository at Yucca Mountain, Nevada.
Rick Kossik
Partner
Rick Kossik has spent most of his career developing and applying probabilistic simulation techniques to complex systems. He is the current President of GoldSim Technology Group LLC and a co-developer of GoldSim, the probabilistic simulation program that is used by public and private organizations throughout the world to support decision-making and risk analysis for complex projects and systems. Rick has evaluated complex engineering and business applications worldwide, including the evaluation and design of options to support the closure of hazardous waste disposal facilities, evaluation of management alternatives at mine sites, and long-term strategic planning for large companies. He has conducted over a hundred workshops and seminars on simulation techniques and the use of the GoldSim software tool in North America, Europe, Australia and Asia.
James W. Voss
Partner
James Voss is a nuclear engineer with 35 years of professional experience associated with the safe management of nuclear materials. He has been responsible for nuclear waste engineering and radioactive facility and site remediation activities in the United States, the United Kingdom, Australia, Canada, Japan, Germany, Hungary and other countries. Mr. Voss has been the chief executive of companies in the US, Europe and Australia, including raising venture capital, project debt, establishing securitized revenue streams, and executing corporate strategic initiatives. He is a Director of companies in the US and the UK, a Fellow of the UK Nuclear Institute, a licensed engineer in the European Union (EurIng) and a Chartered Engineer in the UK.
John Rickus
Director of Mining Services
John Rickus is a mining executive with over 40 years experience in the mining industry throughout the world. From the beginning of his career as a geologist and mining consultant he moved on to fulfill executive roles for Rio Tinto in the UK, Chile, Australia and the USA for well over two decades. His responsibilities included those of Managing Director of Rio Tinto Technical Services; Mining Executive of the Rio Tinto Copper Group; and President of the Resolution Project. John’s capabilities and experience encompass everything from evaluation of potential acquisitions and technical input on joint ventures to leadership of teams of geological, mining, metallurgical, civil and electrical engineers, as well as environmental and community affairs specialists capable of examining any mining-related project.