Board

Photo of David Barrett

David Barrett

Executive Chairman

David co-founded SigmaRoc plc together with Max Vermorken and Charles Trigg and has been its Chairman since January 2017. Previously he co-founded London Concrete in 1997, subsequently building ...

Photo of Max Vermorken

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. Prior to SigmaRoc, Max was strategic advisor to the CEO of LafargeHolcim ...

Photo of Garth Palmer

Garth Palmer

Finance Director

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 ...

Photo of Patrick Dolberg

Patrick Dolberg

Non-Executive Director

Patrick joined the SigmaRoc board as a Non-Executive Director in January 2017. From 2008 to 2013, Patrick was an Executive Committee Member of Holcim Ltd, reporting directly to the CEO, where ...

Photo of Dominic Traynor

Dominic Traynor

Non-Executive Director

Dominic Traynor joined the board in August 2016. He is a solicitor based in London working primarily in the resources and energy sectors. He has advised on the structuring and listing of more ...

Photo of Gary Drinkwater

Gary Drinkwater

Non-Executive Director

Gary Drinkwater joined Ravenscroft in December 2015 as a Corporate Adviser and serves on the boards of several companies which are partly owned by Bailiwick, including Jacksons (C.I.) Limited ...