Specsavers is set to roll out Google Apps software to 2,500 staff.
The high street opticians will use the online software in a bid to improve IT flexibility.
The company said that by using Google Apps, it would be able to quickly deploy email and collaboration tools to new sites without requiring as much resource.
It also aims to be able to more easily centrally manage email systems and support mobile working. It brought in services firm Ancoris to evaluate its desktop software options before it chose to go with cloud computing.
The rollout is currently taking place in Specsavers’ Australia and New Zealand operations, and will be extended to the UK head office and manufacturing sites over the next six months.
John Lister, Specsavers’ chief information officer, said: "Google Apps is an excellent set of tools for our email and collaboration requirements because of its capability, technology and ease of management. Google Apps allows us to scale easily and quickly, without having to invest heavily in buying software and licenses we may not use."
In 2007, Specsavers moved its main infrastructure away from Microsoft Windows-based systems to Red Hat open source software. A year later, it also implemented a new wide area network to improve scalability and capacity.