Our team

Right Honourable Stephen Byers


Stephen is a law graduate and was a senior lecturer in contract and commercial law at Northumbria University. He was elected as a Member of Parliament in 1992 and served in the Cabinet when Tony Blair was Prime Minister.

He stood down from the House of Commons in 2010 to pursue business and charitable interests. In addition to being ACWA’s Chairman he is senior adviser to the Board of CCC (ACWA’s ultimate parent company) and gives strategic advice to several other companies.

Stephen has established the SJB charitable foundation which supports individuals and community groups in the north east of England. He continues to serve as a member of Her Majesty the Queen’s Privy Council.

Simon Langley

Managing Director

Simon is a Chartered Mechanical Engineer with over 30 years of experience in design, construction, commissioning and programme management within the water industry. His expertise lies in his detailed knowledge and understanding of sustainable solutions, operational delivery and strategies to deliver meaningful change and build successfully teams. He has led bidding, mobilisation and management of multimillion pound projects and programmes harnessing the strengths of multidisciplinary teams.

He has a proven track record in managing both commercial and contractual aspects of project and programme delivery demonstrating his ability to make key strategic decisions to support future business growth.

He joined ACWA in April 2020 as Managing Director and he is responsible for the water and effluent treatment processes and products ACWA deliver to the UK municipal, industrial and food / beverage sectors as a leading innovative solutions provider.

John Peacock

Financial Controller

John has over 10 years’ experience in commercial finance and senior management roles with detailed knowledge and understanding in what it takes to grow an SME. He enjoys a hands-on approach to finance, believing an accountant should have an understanding of all aspects of the business they work in. He has excellent management and communication skills and is passionate about the importance of building long lasting, trust based relationships with ACWA’s valued supply chain.

John joined ACWA in July 2019 as Financial Controller and has direct responsibility for all aspects of Finance, Human Resources and Company Secretarial functions. He sees ACWA as a business with huge growth potential in the immediate future.

Gary Harris

Executive Proposals Director

Gary is a Mechanical Engineer with over 35 years’ proposals experience primarily in the water sector. He believes in integrity and transparency ensuring that ACWA keeps its promises right through into delivery. He has been instrumental in developing solid relationships not only with ACWA’s clients but right through the supply chain. He continually builds on ACWA’s track record by utilising in-house process expertise and technologies and those developed in collaboration with the supply chain to ensure cost effective innovative solutions.

He feels a strong responsibility for keeping everyone safe and free from harm which was further developed in his operational management roles. Gary also has a depth of knowledge relating to water scarcity that only comes with time spent working overseas providing solutions focussing on water re-use.

Gary joined ACWA in 2006 and he is a member of the Leadership Team with full responsibility for the management of the Proposals and Process teams of the company.

Robert Lomax

Executive Operations Director

Robert has over 30 years’ experience within the water industry and in particular within mechanical engineering, project delivery and operational management. He has extensive experience with waste water treatment equipment and process plants having managed a multi-disciplinary team with Biwater Treatment for several years and being responsible for their products business.

Robert has worked for some of the major contractors and utilities within the water industry leading front line operational and maintenance staff. He is a natural leader and people person along with being an experienced engineer within the industry.

David Large

Commercial Manager

David is an experienced Commercial Manager who has over 30 years’ experience primarily within the water industry. He has extensive commercial and contractual knowledge which is underpinned by his experience on both individual projects ranging from £250k up to £20m and major frameworks and alliances.

David’s commercial skills coupled with his business acumen makes him a valuable member of the senior management team and it is his responsibility to effectively manage and protect ACWA’s commercial position.

David believes that building strong relationships with clients and the supply chain is integral to running a profitable company. He uses his interpersonal skills to convey complex ideas, provide solutions and negotiate effectively at all levels.

David joined ACWA in April 2021 as Commercial Manager.