Our leadership teams

Mainmark is a global leader, with local expertise in ground engineering and asset preservation.

A dedicated team of professionals – revolutionising the ground engineering industry

At the heart of Mainmark’s success is our team of passionate, experienced and skilled professionals who plan, supervise, and execute all projects. With deep expertise in their field, Mainmark’s personnel consistently deliver exceptional results, making us a trusted partner for Tier 1 projects and homeowners alike.

Executive leadership

Peter Bierton, Chief Executive Officer at Mainmark

Peter Bierton

Chief Executive Officer

AdvDipBldg, BCMEcon, EMBA, LLB

Amy Williams

Chief Growth Officer

BBus, BASc

Theo Hnat

Group Technical & Innovation Manager

BE (Hons), MEngNZ

Ian Thornhill

General Manager

CMgr MCMI, BSc ​​​​

David Hedley, Infrastructure and Commercial Lead at Mainmark

David Hedley

Infrastructure and Commercial Lead

Freya Chapman, Residential Lead at Mainmark

Freya Chapman

Residential Lead

Hossein Khansari, Technical Lead at Mainmark

Hossein Khansari

Technical Lead

PhD Geotechnics

Darian White

Technical Sales Engineer

Sean Moore, Technical Sales Engineer at Mainmark

Sean Moore

Technical Sales Engineer

Adam Fleet

Technical Sales Engineer

Alex Matson

Technical Sales Engineer

Phil Saxby

Health and Safety Manager

CertIOSH DipNEBOSH

We are the first-choice ground engineering, asset repair and preservation partner, solving complex challenges that others cannot

Delivering exceptional outcomes to our
clients, partners and team.

Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

Visionary

We were founded to be the best and we continue to strive for excellence.

Protective

We prioritise the health, wellbeing and safety of our people, our clients and the environments in which we operate.

Icon of a rosette badge symbolising Mainmark's professionalism, quality standards and pride in project delivery

Professional

We approach our work with professionalism, which is evident in how we present ourselves, interact with others and deliver projects.

Inclusive

We promote diversity in the workplace and nurture an open, respectful culture where everyone is heard.

Consultative approach icon representing Mainmark UK’s problem-solving expertise in ground engineering solutions

Collaborative

We are passionate about what we do, we work closely as a team and in partnership with our clients.

Inventive

We are resourceful and continually improve, innovate and think creatively to solve problems.

Get in Touch

Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

Our leadership teams

Mainmark is a global leader, with local expertise in ground engineering and asset preservation.

A dedicated team of professionals – revolutionising the ground engineering industry

At the heart of Mainmark’s success is our team of passionate, experienced and skilled professionals who plan, supervise, and execute all projects. With deep expertise in their field, Mainmark’s personnel consistently deliver exceptional results, making us a trusted partner for Tier 1 projects and homeowners alike.

Executive leadership

Peter Bierton, Chief Executive Officer at Mainmark

Peter Bierton

Chief Executive Officer

AdvDipBldg, BCMEcon, EMBA, LLB

Amy Williams

Chief Growth Officer

BBus, BASc

Theo Hnat

Group Technical & Innovation Manager

BE (Hons), MEngNZ

Ian Thornhill

General Manager

CMgr MCMI, BSc ​​​​

David Hedley, Infrastructure and Commercial Lead at Mainmark

David Hedley

Infrastructure and Commercial Lead

Freya Chapman, Residential Lead at Mainmark

Freya Chapman

Residential Lead

Hossein Khansari, Technical Lead at Mainmark

Hossein Khansari

Technical Lead

PhD Geotechnics

Darian White

Technical Sales Engineer

We are the first-choice ground engineering, asset repair and preservation partner, solving complex challenges that others cannot

Delivering exceptional outcomes to our
clients, partners and team.

Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

Visionary

We were founded to be the best and we continue to strive for excellence.

Protective

We prioritise the health, wellbeing and safety of our people, our clients and the environments in which we operate.

Icon of a rosette badge symbolising Mainmark's professionalism, quality standards and pride in project delivery

Professional

We approach our work with professionalism, which is evident in how we present ourselves, interact with others and deliver projects.

Inclusive

We promote diversity in the workplace and nurture an open, respectful culture where everyone is heard.

Consultative approach icon representing Mainmark UK’s problem-solving expertise in ground engineering solutions

Collaborative

We are passionate about what we do, we work closely as a team and in partnership with our clients.

Inventive

We are resourceful and continually improve, innovate and think creatively to solve problems.

Get in Touch

Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

Our leadership teams

Mainmark is a global leader, with local expertise in ground engineering and asset preservation.

A dedicated team of professionals – revolutionising the ground engineering industry

At the heart of Mainmark’s success is our team of passionate, experienced and skilled professionals who plan, supervise, and execute all projects. With deep expertise in their field, Mainmark’s personnel consistently deliver exceptional results, making us a trusted partner for Tier 1 projects and homeowners alike.

Executive leadership

Peter Bierton, Chief Executive Officer at Mainmark

Peter Bierton

Chief Executive Officer

AdvDipBldg, BCMEcon, EMBA, LLB

Amy Williams

Chief Growth Officer

BBus, BASc

Theo Hnat

Group Technical & Innovation Manager

BE (Hons), MEngNZ

Ian Thornhill

General Manager

CMgr MCMI, BSc ​​​​

We are the first-choice ground engineering, asset repair and preservation partner, solving complex challenges that others cannot

Delivering exceptional outcomes to our
clients, partners and team.

Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

Visionary

We were founded to be the best and we continue to strive for excellence.

Protective

We prioritise the health, wellbeing and safety of our people, our clients and the environments in which we operate.

Icon of a rosette badge symbolising Mainmark's professionalism, quality standards and pride in project delivery

Professional

We approach our work with professionalism, which is evident in how we present ourselves, interact with others and deliver projects.

Inclusive

We promote diversity in the workplace and nurture an open, respectful culture where everyone is heard.

Consultative approach icon representing Mainmark UK’s problem-solving expertise in ground engineering solutions

Collaborative

We are passionate about what we do, we work closely as a team and in partnership with our clients.

Inventive

We are resourceful and continually improve, innovate and think creatively to solve problems.

Get in Touch

Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.