Management Team

Neil Penhall

CEO Close

Neil is the CEO of  SLR Group with responsibility for all international operations. His key role is to provide leadership, support and direction for SLR’s strategic growth across the global business. Prior to being CEO Neil has been Managing Director of the African, Australasian and European operations (2009 - 2013), and before then SLR’s UK Managing Director (2001-2009).

Prior to joining SLR in 1995, Neil held consultancy roles with major international consultancies such as Rust Environmental (now Parsons Brinckerhoff) and Dames & Moore International (now URS). Neil qualified as a mining engineer and has more than 30 years experience in international environmental consultancy.

Dianne Buchanan

CFO Close

Dianne is CFO of SLR Management Ltd. and has responsibility for all financial and commercial matters across the business. Dianne joined the SLR board in August 2016 from Mindshare, the media investment arm of WPP Plc, where she was the CFO for the Europe, Middle East & Africa region. Before Mindshare, Dianne worked for the market research company Synovate, J Sainsbury's and Coca Cola, having previously obtained her chartered accountancy qualification with PwC.

Kevin Rattue

Executive Director Close

Kevin is responsible for the Americas and serves as Chairman of SLR International Corporation in the US and President of SLR Consulting (Canada) Limited as well as being an Executive Director of SLR Management Limited. Prior to joining SLR in 2000, Kevin was the Chief Operating Officer of SECOR International, a $100m turnover international environmental consultancy with its head office in Seattle. Previously Kevin worked as an exploration geologist for a French consulting firm in India, Indonesia, Singapore, Australia and the Middle East.

Kevin has over 30 years of experience with environmental consultancies and oil exploration companies and holds an MBA (International Business) and M.Sc. (Hydrogeology) from the University of Birmingham. He is a registered geologist, licensed hydrogeologist and serves as a Director of the British-American Business Council (Pacific Northwest).

Peter MacKellar

Executive Director Close

Peter joined the Board of SLR Management Limited in January 2015 as Executive Director with responsibility for all international operations outside of the Americas (UK, Ireland, France, Africa, Australia, New Zealand and the Far East).

Peter worked previously for Rust Consulting and since 1999 for Sinclair Knight Merz (“SKM”). Originally Peter held senior roles in SKM’s Australasian operations, but since 2004 he was Chief Operating Officer, Europe, Middle East & Africa (EMEA). Following SKM’s acquisition by Jacobs Engineering he was Manager of the legacy SKM EMEA Water & Environment and Mining & Metals businesses.

Peter gained a civil and structural engineering honours degree at Sheffield University, holds a diploma with distinction in engineering management from Bristol University and is a graduate of Insead Business School in France.

Robert Leeming – Non-executive director

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Robert is a partner at Charterhouse and was appointed to the SLR board in June 2018. He joined Charterhouse in 2007. He was formerly a partner at EPIC Private Equity, prior to which he worked on due diligence and strategy assignments at PricewaterhouseCoopers. Robert has a degree in Natural Sciences from Cambridge University and an MBA from INSEAD.

Sheena Pattni – Non-executive director

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Sheena is an Investment Manager at Charterhouse and was appointed to the SLR board in June 2018. She joined Charterhouse in 2014 having previously spent four years at Perella Weinberg Partners in London, where she worked on M&A transactions across a number of sectors and geographies. Sheena holds a BSc in Economics from the University of Warwick.

Chris Warren – Non-executive director

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Chris is a partner at Charterhouse and was appointed to the SLR board in June 2018. He joined Charterhouse in 2013 having previously spent ten years with ECI Partners where he completed a number of transactions across a wide range of sectors.

Prior to ECI, Chris worked at BC Partners and before that as a consultant with COBA in their Strategy and Private Equity group. Chris has a degree in PPE from Oxford University and an MBA from INSEAD.