Professor Martin Tangney (Founder, President and Chief Scientific Officer)

Internationally recognised expert in microbial biofuel production, particularly biobutanol. Professor Tangney is Director of the Biofuel Research Centre at Edinburgh Napier University, which conducted the innovative research to develop the fermentation technology being commercialised by Celtic Renewables. Martin advises the Scottish Government on biofuels, and represents the government on its MOU with India on Renewable Energy. Martin is a prominent international speaker in the biofuel area and regularly features in the media, and his international profile, domain expertise and connections will be hugely beneficial to Celtic Renewables Ltd.


Dr Doug Ward CBE (Chairman)

In a long and distinguished career, spanning over 35 years, Doug Ward established himself as one of the most influential people in Scotland’s biofuel, agriculture and food & drink industries. Roles included: Managing Director of William Forrest and Sons (key role in BSE crisis); founder of Argent Energy which constructed a £15 million biodiesel plant (first facility of its kind in the world producing diesel entirely from waste oil sources). Doug serves as the Vice-President of the European Biodiesel Board and former Chairman of the Renewable Energy Association transport fuels group. He is a leading international authority on biofuel and a key influencer on policy in the UK and the EU.


Mark Simmers (Chief Executive Officer)

Entrepreneur and commercialisation specialist with over 20 years of international experience in sales, marketing and business development. Mark is one of only 10 Fellows to recently graduate from the highly prestigious Saltire Foundation Global Entrepreneurial Fellowship Programme. Mark graduated from Bristol University in Economics and Accounting and started out his career with the International Management Group in London working with a team  commercialising and managing the global golf assets of IMG. Mark founded and managed his own events and promotions company in Scotland from 2001-07, and was the Chief Executive of the British Ski and Snowboard Federation from 2007-09.


Dr Kenneth Leiper (Lead Scientist)

Lead researcher on the whisky by-product to biofuel proof of concept project at Edinburgh Napier. Kenny has a PhD in the field of biochemistry and has industrial experience in the distilling sector having worked as a lead scientist at North British Distillery in Edinburgh.


Dr Eve Bird (Research Scientist)




Liam Garrett (Lead Process Engineer)






Anna Hyde (Administration Manager)