Gibson left British Energy last April after four years at the firm (PRWeek, 27 April, 2007 ).
Previously he was the director of regulation and public policy for Energis, the telecomms and internet company which was acquired by Cable & Wireless. He is a Council Member for the CIPR and has over 15 years experience in the communications industry.
Following a series of asset disposals, Misys is performing well financially and last month said it had experienced a £60m increase in net profits in the six months to 30 November 2007.
'My experience of company turnarounds puts me in good stead for the challenge ahead,' said Gibson.