The Institute of IT Training has promised to crack down on companies that mis-sell training by making unrealistic promises that their courses guarantee high-paid jobs.
Chief executive Colin Steed said there was an urgent need to protect people from hard-sell techniques which, he said, were giving reputable training companies a bad name.
"We are extremely concerned that the rate of these complaints is growing by the week. The market is worth millions of pounds and some training providers are earning fortunes at the expense of the public," he said.
The industry body has formed a working group of training providers to develop a rigorous accreditation programme that will assess the quality of training and examine sales processes. It plans a code of conduct by December, which will include a cooling off period after people have signed up for courses.
The institute is also pressing the Learning and Skills Council to agree that it will only offer career development loans to people who sign up with accredited training providers.