Nick Richens, who has worked for LCE since 1975, will be setting off on 4 June for a journey of around 1,100 miles, visiting branches that include Plymouth, Manchester, Norwich and Southampton. He expects to finish by 21 June.
He said: ‘A year ago I ran the London Marathon and enjoyed it so much that I decided to look for another challenge in 2013.’
Richens hopes to raise at least £10,000 for the Multiple Sclerosis Society and The Prostate Project, two causes that have affected his family in recent years.
He has already made headway thanks to support from business partners Canon, Fujifilm, Nikon, Panasonic and Sony.
To make a donation, visit uk.virginmoneygiving.com/NickRichens.