We take pride in the diversity and integrity of our leaders: professionals committed to honoring the principles of integrity, accountability and transparency in the management of the company.

Mark Cowlard CEO Arcadis UK

Mark Cowlard

Chief Executive Officer UK & Ireland
BSc(Hons), FRICS

Mark was appointed as CEO for UK and Ireland in March 2018. In the five years since joining Arcadis he has had various roles including as Global Head of Rail, Managing Director UK Transportation, Risk and Operations Director, and Managing Director for Buildings. Mark is a Quantity Surveyor by background, holding an Eminent Fellowship from the Royal Institution of Chartered Surveyors where until recently he was also a Non-Executive Director. Previously he spent 10 years working for Atkins where he performed in various business leadership roles including Managing Director for Rail Solutions. He also has worked in the Oil and Gas and Retail sectors and in Construction Litigation.

Rose Clark

Chief Financial Officer UK
BSc (hons), FCA

Rose became UK CFO of Arcadis in March 2015. Having previously held the role of UK CFO of Hyder Consulting since 2010, Rose specialises in bringing transparency to financial performance and improving the working capital position. Rose has nearly 20 years’ experience in the Financial Services industry, having qualified as a Chartered Accountant with KPMG before going on to work for a number of large corporates including AXA and HBOS, gaining valuable change and people management experience. She also spent three years as CFO of a highly acquisitive AIM (UK Alternative Investment Market) mid-size business raising capital and presenting to analysts and investors.

Peter Madden

Chief Delivery Officer UK
BA (hons), MSc (oxon), FRICS

Peter joined EC Harris in 1994 from Bovis Lend Lease as Director for the Project Management business and served two terms on the EC Harris Board. Just prior to the merger with Arcadis in 2011, Peter found and led the Transformational Programmes Unit, securing large programmes of capital investment and cost reduction, such as the FIFA World Cup™ in Qatar for 2022,; Peter also led the Arcadis strategy for Programme Management for 2014-16 on behalf of the group prior to taking the role of UK COO in 2012. Peter has considerable experience in the management of major change programmes, international programme and project management as well as mergers and acquisitions.