Meet The Team

Meet the incredible MPX Geophysics team we've curated over the last 12 years to provide you with the highest quality services.


  • Daniel J. McKinnon

    Daniel started his career in the base metal mines of New Brunswick (Canada). He has been associated with MPX since 2006 and through a hands-on approach to operations , has developed a comprehensive understanding of the business, with key elements of his personality, namely attention to detail, safety and teamwork becoming indelibly imprinted on the corporate ethos of the organization.
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  • Marco Nieto

    Marco obtained his Geologist degree at Universidad Nacional de Colombia and studied a Master in Science in Geophysics at the University of Western Ontario in London, Ontario. Marco has 13 years of experience in Geophysical and Geological Exploration, with experience in metal ore deposit exploration. He has used potential methods for mining, oil and underground water exploration throughout the Americas. Marco is a Practicing Member of the Ass...
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  • Patrick Healy

    Patrick is a customer and quality-focused business executive who provides the strategic vision and leadership that drives the operational process, productivity, efficiency and bottom line improvements throughout the company.
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  • Roger Holford, FCCA FCA

    Roger S.  Holford FCCA FCA, Global Comptroller A British trained Chartered Accountant, Roger  is a Fellow of the Chartered Association of Certified Accountants of England and Wales as well as a Fellow member of the Institute of Chartered Accountants of Barbados. With over 30 years of private sector and public accounting experience , he brings a broad range of financial expertise and business acumen to the MPX group including financial plan...
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  • Tonia Bojkova, MSc

    Tonia received her first Master of Science degree in Engineering Geophysics at the University of Mining and Geology in Sofia, Bulgaria, where her thesis research was focused on the integration and interpretation of high resolution magnetic and radiometric data collected over southeastern Bulgaria.
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  • Ricardo Espinoza

    Ricardo is a civil engineer and has extensive experience in exploration, specifically in the fields of administration, project management, logistics, acquired over his 30 years of working in the mining industry in both Peru and Australia.
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Experienced production quality results and superior client relationships.