Group

Our Management

Designing the Strategy

Our Executives

David Barrett

Chairman

David co-founded SigmaRoc plc together with Max Vermorken, Garth Palmer, Charles Trigg and Fons Vermorken and has been its Chairman since January 2017. David is a member of the Nominations Committee.

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Max Vermorken

CEO

Max co-founded SigmaRoc plc in August 2016 and has since served as its CEO. In this capacity he developed and implemented the Invest Improve Integrate Strategy and platform-based business model of the SigmaRoc Group. As a result the group has grown both organically and through acquisition in several regional markets, building up a strong asset base and a strong financial performance.

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Garth Palmer

CFO

Garth was Finance Director of SigmaRoc from inception until April 2020, at which point he stepped down from his part-time executive role, but remained as a non-executive board member and Company Secretary. In August 2021, in conjunction with the acquisition of Nordkalk, Garth returned as a full-time executive and Chief Financial Officer.

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Implementing the Vision

Invest, Improve, Integrate, Innovate

Charles Trigg

CTO

Improve

Charles co-founded SigmaRoc plc together with David Barrett and Max Vermorken in August 2016 and has served as its Chief Technical Director. Key focus areas have included M&A, CAPEX and projects as well as operational excellence, health and safety, ESG, Risk and Insurance.

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Fons Vermorken

CIO

Innovate

Fons joined SigmaRoc at its founding in 2016 as a consultant, and now acts as its CIO.

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Emmanuel Maes

Chief Development and Acquisitions Director

Invest

Emmanuel joined SigmaRoc in 2019 and has been instrumental in developing the Group in Europe.

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Guy Edwards

Group Head of Integration

Integrate

With more than 30 years of experience in the construction industry (of which 25 has been spent in the UK market), Guy Edwards is Group Head of Integration at SigmaRoc.

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Charles Trigg

CTO

Improve

Charles co-founded SigmaRoc plc together with David Barrett and Max Vermorken in August 2016 and has served as its Chief Technical Director. Key focus areas have included M&A, CAPEX and projects as well as operational excellence, health and safety, ESG, Risk and Insurance.

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Fons Vermorken

CIO

Innovate

Fons joined SigmaRoc at its founding in 2016 as a consultant, and now acts as its CIO.

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Emmanuel Maes

Chief Development and Acquisitions Director

Invest

Emmanuel joined SigmaRoc in 2019 and has been instrumental in developing the Group in Europe.

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Guy Edwards

Group Head of Integration

Integrate

With more than 30 years of experience in the construction industry (of which 25 has been spent in the UK market), Guy Edwards is Group Head of Integration at SigmaRoc.

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Managing the Regions

Regional Management

Michael Roddy

RMD North West

Michael has been ExCo of SigmaRoc’s Precast Products Group platform since December 2017, during which time he has overseen the acquisition and integration of all platform entities.

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Burkhard Naffin

RMD Central

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Eric Dothée

RMD West

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Marcel Gestranius

RMD North and East

Marcel joined Nordkalk in January 1998 and has over 20 years of experience in various leadership positions.

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Michael Roddy

RMD North West

Michael has been ExCo of SigmaRoc’s Precast Products Group platform since December 2017, during which time he has overseen the acquisition and integration of all platform entities.

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Burkhard Naffin

RMD Central

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Eric Dothée

RMD West

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Marcel Gestranius

RMD North and East

Marcel joined Nordkalk in January 1998 and has over 20 years of experience in various leadership positions.

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Support

Financial, Legal, Operational & IR

Anthony Brockbank

General Counsel

Anthony is a qualified solicitor specialising in Corporate Finance. He acts as General Counsel for SigmaRoc.

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Dean Masefield

RFD West, Deputy CFO

Dean has occupied numerous roles within the SigmaRoc Group, initially as Finance Director of the Channel Islands Platform, then as Finance Director of SigmaRoc, and more recently as Deputy CFO and Director of Investor Relations.

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Clint White

HSE&P Director

Clint White is responsible for group Health, Safety, Environment and Planning and has been with SigmaRoc since 2017.

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Martin Bains

Industrial Director

Martin joined SigmaRoc in 2020 and is currently leading the energy intensity, kiln decarbonisation and optimisation program.

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Tom Jenkins

Head of Investor Relations

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