David Sumner - Founder & Chairman

David is a long term investor with over 20 years of experience in developing successful global business platforms focusing on the healthcare, security & defence, mining and leisure sectors. 


He has been instrumental in seeding, developing and managing the growth of many of the Sumner Group operating businesses and oversaw the public listings of both Sumner Group Mining and Sumner Group Health. He founded Sumner Group in 2018 to consolidate and build upon his business interests.


He has served on numerous private and public company boards in both an executive and non-executive capacity and has a track record of raising capital through debt and equity fundraising.
David founded The Sumner Foundation, a charity specifically set up to benefit disadvantaged students in the UK and also more recently refugees in the Middle East & North Africa.

Allan Rowley - Chief Executive Officer

Allan is an executive with over 20 years’ experience of starting and growing companies internationally.  He has worked in various sectors across the UK, Europe, the Americas and Asia, on the boards or both private and public companies. 

Allan started his career in finance, and is a UK Chartered Accountant.  He has many years’ experience of fund raising and building business to generate long term shareholder value.    


Allan has worked closely with David Sumner over the last 15 years.