Microsoft is a worldwide leader in software, services, and Internet technologies for personal and business computing.

IBM is a leader in the creation, development and manufacture of some of the industry's most advanced information technologies, including computer systems, software, networking systems, storage devices and microelectronics.

Motorola, known globally since the 1930s as a pacesetter in communications technology, semiconductors and advanced electronic systems, is a major force behind personal, enterprise, emergency, government and law enforcement communications.

Sony Ericsson, a 50:50 joint venture of Sony Corporation and Ericsson AB, was established in October 2001. SE's mission is to establish Sony Ericsson as the most attractive and innovative global brand in the mobile handset industry.

HP is a technology company that operates in more than 170 countries around the world. HP explore how technology and services can help people and companies address their problems and challenges, and realize their possibilities, aspirations and dreams.

Huawei Technologies is a high-tech enterprise which specializes in research and development (R&D), production and marketing of communications equipment, providing customized network solutions for telecom carriers in optical, fixed, mobile and data communications networks.

H3C is a leading global supplier of IP-based products and solutions. H3C's offerings include routers, Ethernet switches, wireless LAN, security, Voice/Video over IP products, SOHO products and network management systems.