our work


The Umvoto staff comprises two directors, twenty technical staff, three administrative staff and usually at least two interns. In addition, specialist sub-consultants and academics support and advise the team. Our cohesive team of scientists and professional consultants work within four interrelated departments: Integrated Water Resource Planning and Management, Applied Geology, Environmental Science, and GIS and Remote Sensing.

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Kornelius Riemann

PhD Geohydrology, Pr.Sci.Nat

Technical Director

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Dylan Blake

BSc. (Hons) Geology, Pr.Sci.Nat, FGSSA

Principal Geologist

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David McGibbon

MSc. Geology, Pr.Sci.Nat

Senior Geologist

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Luke Towers

MSc. Geohydrology Pr.Sci.Nat.

Senior Hydrogeologist

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Tyrel Flügel

PhD Environmental and Geographical Sciences, Pr.Sci.Nat

Senior Geospatial Analyst


Gemma Bluff

MSc. Environmental and Geographical Science, Pr.Sci.Nat.

Climatologist and Environmentalist

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Kobus Prinsloo

MSc. Hydrogeology Pr.Sci.Nat.


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Jannie Weitz

PhD Hydrogeology, Pr.Sci.Nat


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Annalisa Vicente

MSc. Environmental and Water Science, Pr.Sci.Nat.


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Edward Wise

BSc. Forest and Natural Resource Management, Cand.Sci.Nat

Geospatial Analyst

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Abulele Mafanya

BTech. Geology, Cand.Sci.Nat

Hydrogeological Technician

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Kirsty Gibson

MSc. Geohydrology, Cand.Sci.Nat

Junior Hydrogeologist

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Kevin de Bruin

BSc. (Hons) Hydrogeology, Cand.Sci.Nat

Junior Hydrogeologist

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Warrick Daws

MSc. Geology, Cand.Sci.Nat

Junior Hydrogeologist

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Masonwabe Kwata

BSc. (Hons) GIS and Remote Sensing, Cand.Sci.Nat

Junior Geospatial Analyst

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Andrew Mkali

MSc. Environmental and Water Science, Cand.Sci.Nat

Junior Environmentalist

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Melissa Rankin

BSc. Environmental Management

Junior Environmentalist

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Matthew Misrole

MSc. Applied Geology, Cand.Sci.Nat

Junior Geologist

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Keanan Woolf

MSc. Applied Geology, Cand.Sci.Nat

Junior Geologist


Shaakirah Adams

MSc. Geology, Cand.Sci.Nat

Junior Geologist

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Gordon Harding

BSc. (Hons) Geology, Cand.Sci.Nat

Junior Geologist

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Lucia Mhlanga

BSc. (Hons) Hydrology and Geohydrology


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Raees Stevens

BSc. (Hons) Environmental and Water Science , Cand.Sci.Nat


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Jeffrey Steffen

IT and Infrastructure Manager

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Zalda Hughes

MSc. Neuro-Linguistic Programming and BBA Marketing (Business Management and Industrial Psychology)

Technical Support Specialist

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Nadia Hamit

National Diploma, Accounting and Finance



Mimosa Yokwe

BCom, Financial Accounting


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Delmarie Carolissen

Personal Assistant to Directors

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Martha Mahundu

Support Staff

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Raphael Nantheleza

Support Staff

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Wedson Thundu

Support Staff


8 Beach Road

muizenberg, Cape town