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Users are concerned about the future development and support of the company's asset management software products following a string of financial woes in recent months.
The company said the restructuring would have "minimal" impact on customers, and a UK spokesperson said the company was "completely committed" to its customer base.
Peregrine is under investigation by the US Securities and Exchange Commission after allegations of fraud were raised by KPMG after it replaced Arthur Andersen as the company auditor in April.
Saleem Haq, systems administrator at Manchester University, which uses the Peregrine's Remedy helpdesk software, said, "The immediate concern is over the future of the Remedy product - about support for it and over the effect its demise would have on future development. It is still early days but we are aware of other suppliers and, if necessary, we will look at their products."
Jim Halliday of the UK Remedy Users Group said UK users were pinning their hopes on Peregrine's plan to operate the Remedy product family as an independent unit. "The general consensus among Remedy users at the Peregrine Systems UK conference 2002 last week was that this would be a good thing and would be of benefit to the user community. So, at the moment, there is no concern over the support offered by Remedy," he said.