Dobbies IT director David Gammie said: "We're in a really exciting place at the moment, with a strong customer offer that we want to build on.
"A robust and reliable IT platform will help us to continue to deliver a great customer experience, and drive forward our growth plans. Easynet has taken time to get to know our organisation, and demonstrated a thorough understanding of our industry."
Easynet Global Services UK managing director Adrian Thirkill said, "It's fantastic to see a stalwart of Great Britain's retail industry truly embrace IT.
"Dobbies has been operating for the best part of a century and a half, and its new robust IT infrastructure really is a springboard for growth."