David spent over ten years as a main board director of FTSE 100 utility companies, the most recent being Scottish and Southern Energy plc (SSE). He had responsibility for all of SSE’s environmental issues and managed one of the largest and most diverse generation fleets in the UK with over 10,000 MW of plant.
He was also responsible for a £1bn programme of investment. David’s career in the energy sector spans 50 years and he remains an active player in off-shore renewables, combined heat and power, smart grids and low energy buildings. As a result, he brings a unique depth of experience and an unparalleled international contact base that is extremely valuable to Sigma’s activities. David is an Honorary Professor at Dundee University and active in promoting start-up companies that are developing technologies relating to clean energy and energy efficiency.
He is also Chairman of the Scottish Environment Protection Agency (SEPA), Chairman of the Scottish Fuel Poverty Forum, Chairman of the Dundee Science Centre, Vice President of the Combined Heat and Power Association (CHPA), as well as a trustee of the think tank Sustainability First.
He was awarded an OBE in 2016 for services to the environment and sustainable futures.
Chief Executive / Founder
In 1996, he co-founded Sigma, and throughout his career, Graham has had significant personal involvement in residential property development and investment.
Graham is an experienced corporate financier and a qualified lawyer. He previously worked with Shepherd & Wedderburn and Noble Grossart before setting up Merchant Investments Ltd a family investment vehicle in 1994, a company specialising in large scale residential development. Merchant Investments led the creation of the Winchburgh new village three miles west of Edinburgh for the creation of 3,500 new homes, five schools, new town centre and railway station before Sigma turned its focus to PRS.
Chief Operating Officer
Graeme has worked in the property and property finance sector since graduating in 1988. He has worked on major commercial and residential development projects and has 7 years of international experience in the development and fund management arenas, latterly being country Director for Nomura Bank’s investment partner in Moscow. Graeme was co-founder of Inpartnership with Duncan Sutherland in late 2000 and was instrumental in the creation of three nationally recognised regeneration partnerships up to 2007. Graeme fronted the shareholder negotiations and investment with West Coast Capital in 2007 and the sale of Inpartnership to Sigma in 2011. Graeme was appointed onto the main Sigma Board as Partnership Director in June 2012.
Graeme has an Honours degree in Civil Engineering and a post graduate Diploma in Property Investment.
Chief Financial Officer
Malcolm is a Chartered Management Accountant ensuring the financial governance of the Group. He joined the company in 2012 as Group Financial Controller having specific responsibility for the Property division..
Prior to joining Sigma in April 2012, he worked for a substantial privately held property company for nine years working on various investment and development opportunities encompassing office, industrial and retail sectors. During this time Malcolm was involved in the acquisition, on-going management, development and disposal of a number of property schemes ranging in value from £1m to in excess of £100m.
Duncan is the Group Regeneration Director and has been key in developing the overall Partnership model, working with local government partners, and has been at the forefront in setting up the successful partnerships currently on the company’s books, such as in Solihull, Salford, and Liverpool. Duncan works closely with the government promoting this innovative approach to achieving regeneration. Duncan is also a Non-Executive Director of Scottish Canals and has recently been appointed in a similar capacity by the Secretary of State for Transport to the board of HS2 Ltd, the new high speed railway to be built between London and the north.
Property Investment Director
With over 21 years experience in the property markets Gwynn has a wealth of expertise and knowledge, his particular specialism being in the property investment markets. He is an honours graduate of Aberdeen University, where he studied Land Economy, and is a member of the Royal Institution of Chartered Surveyors. Prior to joining Sigma, Gwynn was a Director of Investment and Valuation at a leading property consultancy. In addition to his wide ranging property experience and contacts he is renowned for his technical ability. Gwynn was appointed on to the main Sigma Board in June 2011.
Jim is a former senior partner in PricewaterhouseCoopers and was a founder partner of WCC with Sir Tom Hunter in 2001. He has ten years’ experience in private equity, retail and public companies including Office Shoes, Booker plc, Flying Brands plc and Prestbury Group.