Sir John is currently deputy chairman of the Rothschild Group and on the advisory boards of Greenbriar Equity Group, BW Group and Holdingham International.

Sir John was Chief Executive of Rolls-Royce Group plc from 1996 to 2011 having joined the company in 1984.  In 2008 he was made a Commandeur de la Légion d’Honneur in France and awarded the Public Service Star in Singapore.

Stephen is Ombu’s founder and has twenty years of investment experience.

Previously, Stephen was founder and Managing Partner of Swarraton Partners, a UK venture capital firm, and Director of Business Development at IP Group plc, where he sat on the main board.  Earlier in his career, he worked at Bridgepoint Capital in London and Columbia University Science and Technology Ventures in New York.

Stephen is currently on the boards of Open Energi, P2i, Bluewater Bio and i2O Water.

Duncan has extensive experience developing and financing advanced technologies in the industrial, energy and healthcare sectors.

Previously, Duncan was at Rothschild Group, London where he worked as part of the mergers and acquisitions team. Duncan graduated with a Masters in Chemistry (MChem) from the University of Edinburgh, holds a PhD in Chemistry from the University of Cambridge and completed a postdoctoral fellowship at the School of Engineering and Applied Sciences, Harvard University.

Duncan currently sits on the boards of Bowman Power, Iceotope and Phase Focus.

Sir John is recognised as a highly experienced business leader and chairman. He has chaired five FTSE 100 companies and brings a broad range of leadership experience across a variety of industries in many countries.

Sir John is currently non-executive chairman of  Laing O’Rourke and Pennon Group plc. He was previously chairman of Anglo American plc, chairman of National Grid plc, senior non-executive director and chair of the Court of the Bank of England, joint chair of Mondi, chair of BVT and P&O plc, and a non-executive director of Carnival Corporation and Airbus. Earlier in his career, Sir John served as chairman and chief executive of both Harland & Wolff and Babcock International. He has also served as President of the Royal Academy of Engineering and chancellor of the University of Southampton, and was a Visiting Fellow of the University of Oxford.

Luke has spent many years working with senior management at companies in the Energy and Healthcare sectors.

Previously, Luke was at the Boston Consulting Group where he worked on and led projects across many functions, partnering with board level executives on corporate strategy, sales and marketing, and organisational design. Prior to this, Luke graduated with a BA and MSci in Experimental & Theoretical Physics, and  a PhD in Biophysics, from the University of Cambridge.

Luke sits on the boards of Driivz, Open Energi, Bluewater Bio and i2O Water.

Richard is a hugely experienced business leader and has run a range of businesses in the utility and support services sectors.  He has held senior management positions in British Gas, National Grid and Transco Plc, and, since 2003, has taken on the role of CEO in support services companies such as Fulcrum Connections Ltd and London-listed Fountains plc. As Chairman of a successful consultancy business Richard has also provided C-suite counsel to many blue-chip and FTSE 100 firms, from Babcock International, DHL and BAE Systems to BAA and Arqiva.

Nigel has been finance director of a number of UK advanced manufacturing businesses. He is currently Non-Executive Director of Chemring Group which followed his appointment as Interim Chief Financial Officer in July 2012. Nigel was previously finance director of United Scientific Holdings plc (subsequently ALVIS plc), First Technology plc and Babcock International plc. More recently he was Group Finance Director of the FTSE 250 company Morgan Crucible Company plc, until he retired in 2004.

Mark has deep operational management experience in advanced engineering businesses having spent the majority of his career at Rolls-Royce where he was ultimately President of Aerospace.

Matthew is an experienced finance director with extensive board level experience in both public and privately owned companies

He has served as Group Finance Director of Fountains Group and Fountains plc, Divisional Finance Director of Connaught plc, and Finance Manager of Hogg Robinson plc.  He trained with KPMG in London, where he specialised in insurance and asset management.

Matthew is currently a partner in Real World Strategy LLP, and a director of The Sales Conference Company Limited.

Madeleine provides administrative, legal and financial support to the team.

She has a degree in Accounting and Business Law from Curtin University in Australia, she is a Chartered Company Secretary and is now training to qualify as an ICAEW Chartered Accountant.