Leadership Team
GRS operates a two-tier governance structure, with a distinction between the role of the Group Board of Directors and the Executive Management team. Whilst some directors are members of both, this arrangement fosters structured, responsible decision-making, with checks and balances that enable enhanced oversight and clear accountability.
The GRS Group Board focuses on strategy, long-term planning and business sustainability, while the Exec manages daily operations and is accountable for budgeting and business performance.
Group Board
Martin Hill
Jon Fisher
Liam Charalambou
Joe Gifford
Antony Beamish
Lee Hudson
Phil Evans
Yvette Bailey
Dyfrig James
Tim Robinson
Martin Hill
Martin joined the original Galliford Road Stone business in 1985 as a Sales Co-ordinator. He quickly moved on to become Sales Representative for Northamptonshire and then Field Sales Manager before taking up a role as Board Director for the Midlands region within five years. He led the crucial 1997 management buy-out that first established GRS as an independent business and was Managing Director until 2012 when he became Chairman.
Jon Fisher
Jon joined GRS during its formation in 1997 as a Sales Co-ordinator for East London, based at Kings Cross. He then moved up to become Sales Representative for the same area before being appointed to the role of Regional Manager for London and South East. He was promoted to the GRS Board in 2007 as Southern Regional Director and, after leading a second management buyout in 2012, took up the role of Group CEO.
Liam Charalambou
Liam is a solicitor and member of the Law Society who spent the first part of his career in private practice with Pinsent Masons LLP before moving into construction materials in 2011 with Aggregate Industries (part of Holcim). Whilst at AI he was instrumental in numerous deals including the Rail Freight Services joint venture with GRS (where he sat on the RFS Board). He joined GRS in 2018, bringing with him strong commercial acumen, and is responsible for legal affairs, regulatory compliance, corporate governance, company secretarial and insurance.
Joe Gifford
Joe has more than 25 years in the construction industry with particular expertise in earthmoving and civil engineering. After holding key roles with two well-known firms in the groundworks sector, Joe set up his own business NEA Contracts in 2013 and worked alongside GRS on a number of projects in the South East. In 2018 he joined GRS as a Director, becoming a Board Director in 2020 and MD of GRS Integrated Solutions in 2022.
Antony Beamish
Antony joined GRS in 2002 as a Sales Co-ordinator for Hertfordshire, based at the company’s Houghton Regis office. He then progressed through several key positions, with responsibility for regional sales and business development. In 2008 he was appointed Regional Manager for London and the South East, and joined the GRS Board in 2012 as a Regional Director before taking on the MD role for GRS Trading soon afterwards. In 2025 he took up the new strategic role of Group Acquisition & Development Director.
Lee Hudson
Lee joined the company in 1999 as an internal sales co-ordinator for the GRS merchants division. He worked closely with the senior management team over the years to developing the GRS loose aggregates and packed products businesses. In 2014 he was appointed to the board, becoming responsible commercially for GRS Building Products, and has since taken on responsibility for GRS production and logistics as well as West Country subsidiary Maen Karne.
Phil Evans
Phil joined GRS in October 2020, having supported the GRS Exec team with refinancing in 2017. Phil has worked in practice for over a decade with one of the ‘big four’ accountancy firms, in the areas of Audit and then Mergers and Acquisitions. Phil enjoys playing many kinds of sport and whilst he has hung up his football boots and cricket whites, he still plays squash competitively for Kenilworth.
Yvette Bailey
Yvette has 17 years’ experience in the building materials sector, working for both Lafarge and Tarmac before joining GRS to manage the Finance Operations Department. She then worked with GRS commercial teams to align processes and achieve divisional targets, then moving to expand RSS (Rail Stone Solutions). In 2022 Yvette joined the GRS Exec team as RSS Managing Director, heading up the delivery of the HS2 supply contracts and moved to the role of MD for GRS Trading in 2025.
Dyfrig James
Dyfrig joined Redland as a senior manager in 1994 and, after Lafarge’s takeover in 1998, became MD for Lafarge Aggregates in 2003. He was Regional President for Northern & Central Europe from 2007 to 2011, responsible for 10 countries with a turnover of €1.4bn. From 2012 as CEO of Lafarge UK he was instrumental in the merger that created Lafarge-Tarmac (now Tarmac). He has been involved with GRS for 30 years, joining the board in 2014 to support our ambitious growth plans. Dyfrig is a strong advocate of improving health and safety and a passionate believer in the construction industry’s contribution to a sustainable world.
Tim Robinson
Tim has over 25 years’ experience in the UK transport, logistics and retail sectors. As regional MD at Network Rail, he led the UK’s busiest and most high-profile commuter route. He was also part of the team that built GB Railfreight into a market leader, selling the business for a considerable profit. In 2014, Tim founded Doddle, a parcel store network that allows customers to send and receive parcels. Its technology platform is now powering click-and-collect in Europe, Middle East, US, and Australia whilst its direct-to-consumer product has over 500k subscribers.
GRS Executive Management Team
Jon Fisher
Liam Charalambou
Joe Gifford
Antony Beamish
Lee Hudson
Phil Evans
Yvette Bailey
Ilija Radomilovic
Darren Quinton
Gary Coles
Andy Pheby
Mel Milazzo
Sarah Boyden
Jon Fisher
Jon joined GRS during its formation in 1997 as a Sales Co-ordinator for East London, based at Kings Cross. He then moved up to become Sales Representative for the same area before being appointed to the role of Regional Manager for London and South East. He was promoted to the GRS Board in 2007 as Southern Regional Director and, after leading a second management buyout in 2012, took up the role of Group CEO.
Liam Charalambou
Liam is a solicitor and member of the Law Society who spent the first part of his career in private practice with Pinsent Masons LLP before moving into construction materials in 2011 with Aggregate Industries (part of Holcim). Whilst at AI he was instrumental in numerous deals including the Rail Freight Services joint venture with GRS (where he sat on the RFS Board). He joined GRS in 2018, bringing with him strong commercial acumen, and is responsible for legal affairs, regulatory compliance, corporate governance, company secretarial and insurance.
Joe Gifford
Joe has more than 25 years in the construction industry with particular expertise in earthmoving and civil engineering. After holding key roles with two well-known firms in the groundworks sector, Joe set up his own business NEA Contracts in 2013 and worked alongside GRS on a number of projects in the South East. In 2018 he joined GRS as a Director, becoming a Board Director in 2020 and MD of GRS Integrated Solutions in 2022.
Antony Beamish
Antony joined GRS in 2002 as a Sales Co-ordinator for Hertfordshire, based at the company’s Houghton Regis office. He then progressed through several key positions, with responsibility for regional sales and business development. In 2008 he was appointed Regional Manager for London and the South East, and joined the GRS Board in 2012 as a Regional Director before taking on the MD role for GRS Trading soon afterwards. In 2025 he took up the new strategic role of Group Acquisition & Development Director.
Lee Hudson
Lee joined the company in 1999 as an internal sales co-ordinator for the GRS merchants division. He worked closely with the senior management team over the years to developing the GRS loose aggregates and packed products businesses. In 2014 he was appointed to the board, becoming responsible commercially for GRS Building Products, and has since taken on responsibility for GRS production and logistics as well as West Country subsidiary Maen Karne.
Phil Evans
Phil joined GRS in October 2020, having supported the GRS Exec team with refinancing in 2017. Phil has worked in practice for over a decade with one of the ‘big four’ accountancy firms, in the areas of Audit and then Mergers and Acquisitions. Phil enjoys playing many kinds of sport and whilst he has hung up his football boots and cricket whites, he still plays squash competitively for Kenilworth.
Yvette Bailey
Yvette has 17 years’ experience in the building materials sector, working for both Lafarge and Tarmac before joining GRS to manage the Finance Operations Department. She then worked with GRS commercial teams to align processes and achieve divisional targets, then moving to expand RSS (Rail Stone Solutions). In 2022 Yvette joined the GRS Exec team as RSS Managing Director, heading up the delivery of the HS2 supply contracts and moved to the role of MD for GRS Trading in 2025.
Ilija Radomilovic
Ilija has been with GRS from its implementation, starting within the Transport function. His commercial journey within GRS began by working as a Sales Representative, soon progressing to Sales Manager, culminating in his Executive role as Commercial Director. Ilija has been the GRS lead on some of the biggest construction projects within the UK, some examples being HS2 and M6/A14/M1 interchange. When time permits, Ilija enjoys playing golf and is an avid rugby union fan.
Darren Quinton
Darren is an accomplished construction leader with extensive experience across civil engineering, earthworks, mining and rail freight. Since becoming Managing Director of ISC in 2023, the business has seen rapid nationwide growth, securing major infrastructure packages and enhancing its operational capability as part of GRS Integrated Solutions. Known for his hands‑on leadership style, Darren places people and culture at the heart of ISC’s success, developing talent, strengthening teamwork and creating an environment where everyone feels part of a shared mission.
Gary Coles
Gary has worked in the infrastructure sector for 35 years. He worked closely with GRS during his time working for tier one contractors including Laing O’Rourke and VolkerWessels. By the end of 2022, Gary was known to many in the GRS Group as the Head of Procurement at VolkerFitzpatrick. Gary joined GRS in January 2023 sitting on the board of Integrated Solutions, with primary responsibilities around strategy, major projects and key account management.
Andy Pheby
Andy joined GRS in September 2022, after nearly 20 years at Network Rail improving Health, Safety and Environment, working very closely with the supply chain. Transforming the way safety was delivered, how the client communicated with its contractors and how Network Rail become more open to improvements, Andy was part of a cultural change in the industry. Leading the Group HSEQ team, he believes passionately that HSEQ should be owned by all and that everyone should feel they can play a part in achieving ‘No Harm Done’.
Mel Milazzo
Mel joined GRS as People Development Manager in 2016 and soon took on the role of Group People Director. She was responsible in building the GRS Academy, having started from a blank canvas. Mel’s particular passion is ensuring that learning meets the needs of the audience and that it should be fun! Mel is also responsible for supporting the business and our people with all things Health and Wellbeing. Known for her thoughtful approach to people leadership and employee satisfaction, Mel plays a central role in shaping our talent strategy and fostering an environment where colleagues feel valued, supported and equipped to succeed.
Sarah Boyden
Sarah joined GRS in 2018 as Group Human Resources Manager, having progressed through key HR roles throughout her career, including HR Advisor, Employee Relations Advisor and HR Officer. In these positions, Sarah has developed and delivered practical HR solutions that support organisational growth, improve employee relations and strengthen workplace culture.