David co-founded SigmaRoc plc together with Max Vermorken and Charles Trigg and has been its Chairman since January 2017.
Max Vermorken
Chief Executive Officer
Max co-founded SigmaRoc plc together with David Barrett and Charles Trigg and has served as its CEO since August 2016.
Dean Masefield
Finance Director
Dean joined Ronez in 2017 and was the Finance Director of the Ronez platform until becoming SigmaRoc Finance Director in 2020.
Simon Chisholm
Independent Non-Executive Director
Simon is the founder and managing director of Feros Advisers spending over 20 years working in the Investment arena including as a fund manager with Henderson.
Jacques Emsens
Independent Non-Executive Director
Jacques is a founding member of JPSeven and is a Board member of Sofina, and numerous other companies as well as being instrumental in the development of Sibelco.
Garth Palmer
Non-Executive Director
Garth Palmer was Finance Director of SigmaRoc from inception until April 2020 and remains Company Secretary.
Tim Hall
Non-Executive Director
Tim has spent his entire career in the aggregates industry, most recently as CEO of Breedon South.