IBM

IBM, whose businesses include software, storage, servers and services, has also ventured into new areas such as environmental, social networking and "cloud computing" technologies.

A leader in the technology industry, IBM's businesses include software, storage, servers and services.

Some four years ago, Big Blue sold off its non-profitable PC arm to China's Lenovo, in a bid to move away from commodity products.

Since then, IBM has made moves into new areas to seek revenue: environmental, social networking and "cloud computing" technologies.

The tech stalwart unveiled Big Green Innovations in 2007--a program borne of its companywide online brainstorming sessions Innovation Jam--to help corporations become more eco-friendly.

As part of its cloud computing initiative, the company recently launched "Bluehouse", a Web-based social-networking and collaboration service designed for business.

In October, Big Blue reported a 5 percent rise in annual profit for the third quarter that ended Sep. 30, with earnings of US$2.8 billion on revenue of US$25.3 billion. The company has nearly US$10 billion in cash.