Managing Director Ronez Limited
+44 (0) 1534 867200
La Route du Nord St John Jersey JE3 4AR
Mike Osborne has been Managing Director of Ronez since 2006, where he has been responsible for Ronez’s strategic direction and operational management. Prior to this, he spent four years as director of Aggregate Industries’ overseas operations, reporting directly to the Aggregate Industries’ chief executive officer. Between 1998 and 2001, Mike held a number of roles for Tarmac Group Limited primarily in Central Europe. Mike has a BSc (Eng) in Mining Engineering from the University of London and he is a Fellow of the Institute of Quarrying.
Chief Executive Officer
Max co-founded SigmaRoc plc together with David Barrett and Charles Trigg and has served as its CEO since August 2016. Prior to SigmaRoc, Max was strategic advisor to the CEO of LafargeHolcim ...
Garth Palmer has been Finance Director of SigmaRoc since January 2017 bringing a wealth of corporate financial and company secretarial services experience through his advisory company ...
Charles co-founded SigmaRoc plc together with David Barrett and Max Vermorken and has served as its Technical Directors since August 2016. Previously he was Group Head of Capex at LafargeHolcim ...
Managing Director South West UK
David McClelland has been Managing Director of the SigmaRoc West, South West platform since December 2018, and is responsible for the strategic development and operational management of the ...
Managing Director Europe
Emmanuel joined SigmaRoc in 2019 and is the Managing Director of our European arm. Previously Emmanuel served as CEO of Group De Cloedt (2004-2018), building the business from €40m to ...