In June 2012 he was named as chairman of the Garden Centre Group.
Murphy is also non-executive chairman of hospitality company Jumeirah Group, chairman of UK medical technology business The Learning Group, non-executive director of Chinese social networking company Ren Ren Inc, non-executive director of The Business Growth Fund and an advisory partner at corporate finance and advisory business Ashcombe Advisers LLP.
Letter to the Telegraph
On 1 April 2015 Murphy was one of 103 business leaders who wrote to the Telegraph praising the British Conservative Party's economic policies and claiming a Labour government would 'threaten jobs and deter investment' in the UK.
- Wyevale Garden Centres Board of Directors, accessed 3 April 2015.
- The Tory 100: captains of industry, party donors (and a few tax avoiders) Guardian, 1 April 2015, accessed 3 April 2015.
- Electoral Commission Search, accessed 7 April 2015.
- Peter Dominiczak, 100 business chiefs: Labour threatens Britain's recovery, Telegraph, 3 April 2015.