Epsilon advises clients operating at the intersection of technology, government, enterprise and society.

Through our global network, we support our clients' international growth through innovative commercial, intellectual and social partnerships.

Our senior team has experience at the highest levels of government and business.

In 2015, Epsilon's Founding Partners also established CyLon, Europe's first cyber security accelerator and incubator space. CyLon welcomes start-ups building global-scale cyber security businesses with innovative technology, and helps them develop their skills, products, sales and investment-readiness. CyLon's alumni have gone on to secure investment from some of the world's leading investors, and count FTSE100 and other global companies amongst their clients.

Grace Cassy
Founding Partner

Grace has significant experience in international business and policy, advising corporations and HNWI clients active in global finance and industry on their external partnerships since 2008. Prior to this, she spent 10 years in the UK Diplomatic Service, working on Asia, Europe, the Americas and global security policy. Between 2004-06, she was a foreign policy Private Secretary to Prime Minister Tony Blair in 10 Downing Street specialising in Asian issues.
Jonathan Luff
Founding Partner

Jonathan is an experienced former diplomat and advisor to the British Prime Minister. Before serving as advisor on innovation and international issues at 10 Downing Street, Jonathan held diplomatic posts overseas in Riyadh, Baghdad, and Paris. At No.10, Jonathan worked on issues including Open Government and Cyber Security. He was also Director of the ‘GREAT’ Campaign, a global communications programme promoting inward investment and enterprise in the United Kingdom.
Kerry Gregory
Chief of Staff

Kerry joined the Epsilon team in 2016. During her career in government she served as Private Secretary and Organiser-in-Chief to Cabinet Ministers and Ambassadors, both in London and overseas. Kerry makes things happen, ensuring the Epsilon machine works smoothly, efficiently, and to the high standards our clients expect.

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Epsilon Advisory Partners is a limited company registered in England and Wales.
Registered Address: 9 Thorney Leys Park, Witney, Oxfordshire, OX28 4GE.
Registered No.12085284