Executive Committee

The Executive Committee is responsible for the strategy formulation, operational management of the business, measuring and improving performance and evaluating major capital projects.

Lee Sleight - Chief Executive Officer
Lee joined the business in 2021 and has more than 20 years experience in the construction industry. He has previously been Managing Director of both our Readymix Concrete and Aggregates divisions before being appointed as CEO in August 2024.
Garrath Lyons - Chief Financial Officer
Garrath is Chief Financial Officer, having become a member of the Board in 2022. He has ultimate functional responsibility for accounting and finance, treasury, taxation, risk and assurance for the company.
Daniel King - Managing Director, Asphalt
Danny joined the business in 1999 and has an extensive experience in various roles across asphalt, aggregates and readymix, including Managing Director of London Concrete for more than six years.
Kaziwe Kaulule - Managing Director, Aggregates
Kaziwe joined the business in 2023, having extensive international experience within Holcim Group. He heads up our Aggregates business, which also includes our fast developing Construction Demolition Materials sector.
Steve Curley - Managing Director, Cement
Steve is responsible for the Cement Division, having previously been the Commercial Director of Cement. Steve joined the company in 1999.
Gary Brennand - Managing Director, Readymix Concrete
Gary is responsible for our Readymix Concrete Division. Prior to this, he was Express Asphalt Director within our organisation.
Anna Baker - Sustainability Director
Anna brings more than 20 years’ experience in sustainability within the construction industry and is responsible for accelerating the company’s journey to net-zero before 2050.
Kevin Murgatroyd - Managing Director, Contracting Division
An experienced senior leader across a range of sectors including transport and infrastructure. Kevin joined the business in 2022 as a Regional Director in Surfacing Solutions before progressing into his current role in 2024.
Ian Dean - Managing Director, Concrete Products
Ian has a proven track record in developing commercial and operational excellence and is responsible for our Concrete Products Division.
Edern Lalanne - Supply Chain Director
With nearly 20 years of experience working internationally in senior Supply Chain positions, Edern is in charge of Procurement, Logistics and the Regional Customer centers.
Phillip Norah - General Counsel
Phillip joined Aggregate Industries in 2018, providing the company with strategic legal advice. He also leads a number of functional areas including legal, compliance, insurance, company secretarial, real estate and mergers & acquisitions.
Jason Lowe - Health, Safety and Performance Director
Jason has 25 year plus experience in the construction and building materials supplies industry having worked in a range of operations, engineering, research and management roles. He is responsible for health and safety and business excellence.
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Aggregate Industries is delivering growth through sustainable thinking

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Committed to playing a significant role in enabling the UK to transition to net zero, Aggregate Industries is driving decarbonisation across the construction materials sector. With a broad, established range of low carbon solutions and a focus on the circular economy, Aggregate Industries continues to invest in R&D and innovation, working in partnership with sustainability-focused stakeholders, with the goal of becoming the UK’s leading supplier of sustainable construction materials. It is the first company to be certificated to BES 6001, The Framework Standard for the Responsible Sourcing of Construction Products, developed by the BRE (Building Research Establishment).  

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