People

As an employee-owned main contractor, our people are the foundation of everything we create—a team with diverse talents and perspectives where everyone makes an impact.

Multi-skilled collaboration

Across the group, we’re a 350+ strong team of multi-skilled collaborators, combining experts in design, engineering, technology, and project management.

Every colleague is a co-creator of the business and the legacy we leave in every project. We have a shared purpose, where everyone is committed to quality and celebrating success together.

We prioritise well-being, and open communication at every level, creating a culture rooted in integrity and genuine care.

Senior team

Francis Shiner

Francis Shiner

Chairman

Since joining the company in 1983, Francis has assumed various roles, from Chief Surveyor to managing Director, ultimately assuming the position of Chairman in 2021.

Adam Knaggs

Adam Knaggs

Managing Director

Adam joined SDC in 1995 as a Site Engineer. His position as Managing Director involves contributing to the day-to-day running of the business, setting the strategy for projects, and supporting all departments. Adam’s active approach to problem solving has been a defining trait of his career, as recognised by the Institution of Civil Engineers who honoured him with their Site Engineer of the Year Award 1999, in which he was praised for designing his own shuttering system.

Gary Wykes

Gary Wykes

Director

Gary joined SDC in 1989 and created the Special Projects Department in 1992. The division provides a bespoke and specialist service, utilising the support and resources already available to SDC as a Main Contractor. As a result of the Department’s ongoing success, Gary was promoted to the Board of Directors in January 2003. The Special Projects Department has since grown to comprise over 65 employees and reach a turnover of £30m each year.

Andrew Mitchell

Andrew Mitchell

Director

Andrew is a senior member of staff who holds the role of Director/Company Secretary. He joined SDC in 1994, and had therefore been with the company for almost thirty years. He plays a key role in ensuring that board procedures are both followed and regularly reviewed. The Chairman and Board Directors will look to the Company Secretary for guidance as to what their responsibilities are under the rules and regulations to which they are subject, and on how these responsibilities should be discharged.

Andrew Shiner

Andrew Shiner

Director

Andy joined SDC as a Site Agent and rose through the ranks to Project Director, before taking on his current role as Board Director in 2020. The experience he gained in all three professions will undoubtedly assist him in leading this scheme. On a previous project for NIAB in Cambridge, Andy’s team were responsible for SDC’s highest Considerate Constructors’ score to date (90 out of 100) and a Runner’s Up Prize at the CCS National Awards in 2019.

Dan Changer

Dan Changer

Director

Dan studied Architecture at the University of Cambridge and worked as a chartered Architect before joining SDC in 2010. Joining as a Design Coordinator, Dan then opted to work as a Contracts Manager, receiving a promotion to Project Manager before his appointment to the Board of Directors in 2020. His duties and responsibilities include setting the overall strategy for the project, as well as leading the project team and ensuring the scheme is delivered within the client’s time, quality and budget constraints. Dan’s client-focused attitude and collaborative problem-solving approach will be crucial to the scheme’s successful delivery.

Carl Bennett

Carl Bennett

Director

After joining SDC in 2004, Carl was employed as a Site Manager, Design Coordinator, and Contracts Manager. The experience he gained in all three professions led him to be promoted to the role of Board Director in 2020. His duties and responsibilities include setting the overall strategy for the project, as well as leading the project team and ensuring the scheme is delivered within the client’s time, quality and budget constraints. It is Carl’s previous experience in the construction of large office developments (such as those on the Cambridge Science Park), that makes him the ideal choice when selecting a Director to oversee this scheme.

Jonathan Richardson

Jonathan Richardson

Director

Jonathan has extensive knowledge and experience of building services design, installations and management thereof. As a qualified Building Services Engineer, Jonathan spent his earlier career working for a major MEP sub-contractor. His diverse range of project experience means he has proven to be a great addition to the SDC team, and this has led to his recent promotion to M&E Director. He oversees a team of electrical and mechanical project managers, estimators, quantity surveyors, commissioning and MEP design managers.

Name
Job Role
Team
Francis Shiner
Francis Shiner

Since joining the company in 1983, Francis has assumed various roles, from Chief Surveyor to managing Director, ultimately assuming the position of Chairman in 2021.

Adam Knaggs

Adam joined SDC in 1995 as a Site Engineer. His position as Managing Director involves contributing to the day-to-day running of the business, setting the strategy for projects, and supporting all departments. Adam’s active approach to problem solving has been a defining trait of his career, as recognised by the Institution of Civil Engineers who honoured him with their Site Engineer of the Year Award 1999, in which he was praised for designing his own shuttering system.

Gary Wykes
Gary Wykes

Gary joined SDC in 1989 and created the Special Projects Department in 1992. The division provides a bespoke and specialist service, utilising the support and resources already available to SDC as a Main Contractor. As a result of the Department’s ongoing success, Gary was promoted to the Board of Directors in January 2003. The Special Projects Department has since grown to comprise over 65 employees and reach a turnover of £30m each year.

Andrew Mitchell
Andrew Mitchell

Andrew is a senior member of staff who holds the role of Director/Company Secretary. He joined SDC in 1994, and had therefore been with the company for almost thirty years. He plays a key role in ensuring that board procedures are both followed and regularly reviewed. The Chairman and Board Directors will look to the Company Secretary for guidance as to what their responsibilities are under the rules and regulations to which they are subject, and on how these responsibilities should be discharged.

Andrew Shiner
Andrew Shiner

Andy joined SDC as a Site Agent and rose through the ranks to Project Director, before taking on his current role as Board Director in 2020. The experience he gained in all three professions will undoubtedly assist him in leading this scheme. On a previous project for NIAB in Cambridge, Andy’s team were responsible for SDC’s highest Considerate Constructors’ score to date (90 out of 100) and a Runner’s Up Prize at the CCS National Awards in 2019.

Dan Changer
Dan Changer

Dan studied Architecture at the University of Cambridge and worked as a chartered Architect before joining SDC in 2010. Joining as a Design Coordinator, Dan then opted to work as a Contracts Manager, receiving a promotion to Project Manager before his appointment to the Board of Directors in 2020. His duties and responsibilities include setting the overall strategy for the project, as well as leading the project team and ensuring the scheme is delivered within the client’s time, quality and budget constraints. Dan’s client-focused attitude and collaborative problem-solving approach will be crucial to the scheme’s successful delivery.

Carl Bennett
Carl Bennett

After joining SDC in 2004, Carl was employed as a Site Manager, Design Coordinator, and Contracts Manager. The experience he gained in all three professions led him to be promoted to the role of Board Director in 2020. His duties and responsibilities include setting the overall strategy for the project, as well as leading the project team and ensuring the scheme is delivered within the client’s time, quality and budget constraints. It is Carl’s previous experience in the construction of large office developments (such as those on the Cambridge Science Park), that makes him the ideal choice when selecting a Director to oversee this scheme.

Jonathan Richardson
Jonathan Richardson

Jonathan has extensive knowledge and experience of building services design, installations and management thereof. As a qualified Building Services Engineer, Jonathan spent his earlier career working for a major MEP sub-contractor. His diverse range of project experience means he has proven to be a great addition to the SDC team, and this has led to his recent promotion to M&E Director. He oversees a team of electrical and mechanical project managers, estimators, quantity surveyors, commissioning and MEP design managers.

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