David Williams

Executive Chairman, Founder and Chief Executive Officer

Prior to founding Arqit, from 2002 to 2017 Mr. Williams was the co-founder and CEO of Avanti Communications Group plc, which pioneered the use of Ka-band satellite communication. Mr. Williams also served as Founder Chairman of the Advisory Board of Seraphim Space Ventures, a $100 million high technology venture capital firm based in London, which he initiated with UK Government support in 2014. Prior to this, Mr. Williams was an investment banker specializing in financing international telecom businesses. Mr. Williams holds a Bachelor of Arts (Honors) in Economics and Politics from the University of Leeds. He was granted the Queens Award for Export in 2015 and received the Quoted Company Entrepreneur of the Year in 2006.

Manfredi Lefebvre d'Ovidio

Deputy Chairman & Senior Independent Director

Mr. Lefebvre is Chairman of Heritage Group, a diversified conglomerate with interests in the cruise industry, property and financial investments. Mr. Lefebvre assumed the role of Executive Chairman of Silversea Cruises from 2001 until 2020. During this period, Mr. Lefebvre transformed Silversea Cruises from a cruise line with five vessels to a market leader covering over 900 destinations worldwide. Further, he expanded the product range of Silversea Cruises by adding an expedition fleet, which quickly became a leader in luxury expedition cruising as well. In 2018, Mr. Lefebvre sold two-thirds equity stake of Silversea Cruises to Royal Caribbean Cruises Ltd. for approximately $1 billion. Heritage Group recently acquired a majority stake in the high- end tour operator Abercrombie & Kent with Mr. Lefebvre also becoming co-Chairman of its board. Mr. Lefebvre serves as the Vice President of the Monaco Chamber of Shipping, Member of Executive Committee of the World Tourism and Travel Council, and has held a number of key roles in Cruise Lines International Association, including European Chairman, Member of the Global Executive Committee, and Chairman from 2007 to 2013. Mr. Lefebvre was honored with the Chevalier de l'Ordre de Saint Charles and Grimaldi by SAS Prince Albert of Monaco.

Nick Pointon

Chief Financial Officer and Executive Director

Prior to joining Arqit, from 2017 to 2021 Mr. Pointon was the Group CFO of Privitar, a venture capital-funded data privacy company, and from 2011 to 2016 was the Vice President of Finance at King Digital Entertainment plc, which listed on the NYSE prior to being bought by Activision Blizzard, Inc. Mr. Pointon has experience acting as Financial Controller in a number of private and public telecoms and technology businesses. Mr. Pointon holds an LLB in Law from Kings College London and trained as a Chartered Accountant with Moore Stephens before moving to KPMG for two years' post-qualification experience.

Carlo Calabria


Mr. Calabria has close to four decades of experience in the financial services sector and has held multiple senior leadership positions at some of the world's largest financial institutions. In 2012, he founded CMC Capital Limited, an investment banking boutique specializing in mergers and acquisitions and debt restructuring, which he led until 2016, and then returned in 2021. Mr. Calabria is a mergers and acquisitions expert with vast experience across different sectors and regions. In 2016, he joined Barclays as Chairman of M&A and then served as Head of Banking for Barclays Europe from 2016 to 2020 and was responsible for investment banking activities in Continental Europe and Central and Eastern Europe, Middle East and Africa. Prior to joining Barclays, he served as Head of International M&A, first at Credit Suisse and then at Merrill Lynch from 2006 to 2011. Prior to this, Mr. Calabria worked at Credit Suisse from 1990 to 2006 and began his investment banking career at Morgan Grenfell & Co. Ltd in 1983. Mr Calabria holds a Master of Arts (Honors) in Economics from Rome University, La Sapienza.

Stephen Chandler


Mr. Chandler is an entrepreneur, investor and company builder, with 20 years of experience in forming, funding, running, advising and investing in technology businesses. Mr. Chandler is a co-founder of over ten businesses with involvement in dozens more. Since 2009 he has been the Co-founder and Managing Partner at Notion Capital, a venture capital firm focused on Cloud Computing and Software-as-a-Service. Following an early career at Deloitte and then UBS, he was the Chief Financial Officer at MessageLabs, a cyber security company, through to its acquisition by Symantec in 2008. He is currently a board director of several growing tech companies, including GoCardless, Paddle, Panaseer, Novatiq and Virtual Stock. Mr. Chandler is a qualified Chartered Accountant and holds a Bachelor of Arts (Honors) in Accounting & Economics from the University of Exeter.

Garth Ritchie


Mr. Ritchie has over 25 years of experience in banking and finance where he has held a number of senior leadership positions. In 1996, Mr. Ritchie joined Deutsche Bank in the Johannesburg office and went on to become a member of the Global Markets Executive Committee in 2009 as Head of Equities. In January 2016, Mr. Ritchie was appointed to Deutsche Bank's Management Board with responsibility for Deutsche Bank's markets division. In 2017, he became Co-Head of the newly created Corporate & Investment Bank. In 2018, he became its sole Head and was appointed as President. In June 2020, Mr. Ritchie joined Centricus, a London-based global investment firm, where he leads the firm's capital markets and advisory business. Mr. Ritchie earned his B.Com. in Finance and Economics from the University of Port Elizabeth.