Almost all organizations need the use of technology, and many employ specialized IT personnel, thus there are opportunities in a wide range of sectors. The following companies have a big number of technology jobs available:
Companies that make software
Hardware businesses
Companies that make games
Technology consultants (companies that provide technology consulting services - see above)
IT service providers (those who handle a company's IT requirements if they don't wish to do it themselves)
Telecommunications firms
Banks and other financial institutions
Retailers
Engineering firms
The government sector (eg hospitals, central and local government, the secret intelligence service)