Board of Directors

Trevor joined Goldman Sachs in 1986 where he was CIO for the EMEA Region between 2000 and 2009. He contributed to the company’s growth in the use of technology and was responsible for all aspects of technology across the EMEA Region. Trevor joined the Endava Board in 2013 and has recently been appointed Chairman of the Board of Directors.

A former Partner in both International Accounting firms Arthur Andersen and Ernst and Young where he specialised in merger and acquisition advisory services. He has had extensive involvement in major corporate turnarounds, and experience as acting CFO of a 1bn pound revenue telecommunications business operating across 20 countries and 4 continents.

Mr. Butcher most recently served as Group Chief Financial Officer of the Headlam Group plc from April 2022 until March 2023. From January 2019 to November 2020, he served as Group Chief Financial Officer at Capita plc. Prior to that, Mr. Butcher served as Chief Financial Officer at various companies including The Go-Ahead Group plc, Network Rail Limited, English and Scottish Railway and Mapeley Limited. Mr. Butcher received his B. Compt. (Hons) in Accounting and Finance from the University of South Africa and is a qualified Chartered Accountant (South Africa).

Sulina joined the Endava Board in September 2019. She has worked at the forefront of digital transformation most recently at Facebook where she has been a Director of Mobile and Connectivity Partnerships since October 2017. Prior to that, from April 2014 until September 2017, she was Senior Vice President of Strategic Partnerships at Orange. Sulina holds an M.A. from the University of Oxford.

John entered the Computer Services industry with Hoskyns (now Capgemini), where he gained a broad range of experience of business practices in the industry. At Capgemini, John set up the Business Process Outsourcing division taking it from a greenfield start-up to 450 people over a 5 year period. In February 2000 he founded Concise which merged with Compudava in April 2006 to form Endava. John was selected as an Ernst and Young Entrepreneur of the Year in 2011.

Former Managing Director and Chairman of Global TMT Banking at Citigroup, Co-Head Global TMT Banking, and having also run the Global Services and East Coast Technology Investment Banking Group, Ben is an experienced professional, having completed and led hundreds of Equity, M&A and Fixed Income transactions over almost three decades.

Ms. Hollister has served as a member of the board of directors of Clear Secure, Inc. and as a member of the board’s audit and compensation committees since June 2021. From March 2021 to May 2022, Ms. Hollister served as a member of the board of directors of First Solar, Inc. and as a member of the board’s audit and compensation committees. Ms. Hollister was an active partner at Deloitte for over 25 years until September 2020, where she served as the Chief Strategy Officer of Deloitte Global Tax and Legal practice from 2015 until 2019 and in a variety of leadership roles, including Chief Strategy Officer of Deloitte Tax LLP (USA), managing partner of the U.S. Business Tax Service line, and served both public and private clients. Ms. Hollister was a member of the Board of Directors of Deloitte U.S. from 2008 to 2015 and of Deloitte’s Global Board of Directors from 2010 to 2015. In the community, Ms. Hollister served multiple academic and charitable organizations and currently serves on the boards of trustees of Duke University, University of Cincinnati Health Foundation, and the Cincinnati Museum Center. A lawyer (licensed, registered inactive, in State of Ohio) and a certified public accountant (licensed, active in the State of Ohio), Ms. Hollister holds a B.A. from Duke University and a J.D. from the University of Cincinnati College of Law.

David is an experienced chief financial officer and board member who has led companies through successful IPOs on both the U.S. and London Stock Exchanges. Most recently, he was chief financial officer of ClearStar, Inc., a publicly traded technology company on the London Stock Exchange, and previously was CFO of a NASDAQ listed company. David holds an MBA from the University of Georgia.

Mark has experience in the IT and Telecoms sectors, as well as experience as a US listed CFO. He was Deputy Finance Director of Xansa plc, the IT and BPO outsourcing company, where he played a key role in the upgrade of its financial systems and reporting as the company scaled its offshore capability in India. He then became UK Finance Director at COLT Telecom and latterly Group CFO of Cascal NV, an international NYSE listed water services company. Mark joins us from Paragon, a private equity backed training provider.