Up to 900 jobs at Xerox in Blanchardstown in west Dublin are set to be lost over the next two years following a review of the company's operations.
The affected employees work mainly in a customer support call centre for Xerox clients worldwide. Earlier this month Xerox announced that this business would be outsourced to a division of IBM from September.
In relation to earlier reported assurances that no jobs would not be lost, Xerox said that at no point was there a guarantee that jobs were secure.
An internal Xerox briefing document to staff seen by RTÉ says the work done by the company's 900 staff in Blanchardstown will transfer to IBM operations in Sofia in Bulgaria, Bangalore in India, Manila in the Philippines and Greenock in Scotland.
The document suggests the transfer of work will take place over the next 12 to 18 months with the process to be completed early in 2009.
Xerox says it will provide a generous and fair redundancy package for all affected staff if a new opportunity is not available in IBM.
RTÉ News has also learned that while the affected employees will be IBM employees from September, it is Xerox which will underwrite the cost of the redundancy programme.
Some 800 people will remain working for Xerox in Blanchardstown and Dundalk. These jobs are not under any threat.
The IDA says it is working closely with both companies to ensure their Irish operations remain competitive and sustainable into the future. The majority of the employees affected are from abroad.
It is understood that IBM will offer a number of those affected a financial incentive to re-deploy within IBM. But it is also understood the re-deployment will not be widely available.