Google, Yahoo and Apple face anti-trust investigation
IT giants Google, Yahoo and Apple are being investigated by the US Justice Department over their recruitment practices.
The Justice Department is investigating allegations that the companies have agreed not to poach workers from each other - a practice known as hiring away staff - according to the Washington Post.
The practice limits workers' opportunities for promotion and helps companies retain their market dominance.
David Bloxham, director of recruitment services at GCS which specialises in IT and engineering, said the IT sector has fierce competition for skills.
"As a recruitment company we are often not allowed to speak to the existing employees of our clients because they are worried they may leave to work for their competitors," he added.
Software engineers and other highly skilled techies are in high demand. Bloxham said he has been told of cases where large IT companies have camped outside career fairs of their competitors to try to poach potential recruits.