ICI said the decision to go wireless was aimed at increasing efficiency, mobility and connectivity across the company, but Aruba had been chosen as the supplier because of its high level of security and access control.
"Compared with all the other suppliers we considered, only Aruba offered a secure, and user-friendly product that integrated fully with ICI's existing systems," said Paul Simmonds, global security director at ICI.
He said the company was sceptical about finding a wireless network that was automatically secure, particularly for mobile and home workers to connect to the corporate network.
"We drew up a short list of suppliers and thoroughly tested their products, but only Aruba met all our requirements to provide secure and reliable access to enterprise applications, regardless of location," said Simmonds.
The Aruba network also provides follow-me connectivity and security using centralised policy and network management.
ICI's company-wide roll out of wireless networks is underway, with the first three sites in the UK already installed.