Mark Simmers is CEO of Celtic Renewables, a start-up business in the renewable energy sector. Celtic Renewables' innovative technology converts low value organic wastes and residues into high value chemicals and other products, providing industries with a complete residue disposal solution by producing high value commodities from sustainable and low value inputs. Celtic Renewables Ltd was established in 2011, as a spin-out from Edinburgh Napier University. The company has plans to build the first large scale bio-refinery in Scotland in 2014/15, which will herald the development of a sustainable biobutanol industry in Scotland. The potential market in Scotland alone is worth over £100m, and the technology has global potential. Celtic Renewables had an incredibly successful and award winning first year of operations in 2012, winning The Shell Springboard Award and the Best Innovation Award at the Scottish Green Energy Awards.

Mark is a natural leader and an entrepreneur with global experience in commercialisation, sales, and project management. In July 2011, Mark graduated as a Saltire Fellow, having completed the 9 month Leadership Development programme. This involved a fast-track entrepreneurial MBA course at Babson College in Boston, an internship with Shaw Pipeline Services in Houston, Texas, and finally a start-up project with Edinburgh Napier University, which led to the creation of Celtic Renewables.