The London Boroughs of Hammersmith and Fulham, Kensington and Chelsea, and Westminster City Council have estimated they will save around £4m by 2015 through IT consolidation across the three authorities.
The councils also said they expect to make savings of around £400,000 a year through reducing duplications across departments. This will result in the loss of 12 IT roles, excluding IT support.
A report from the three councils said there is scope for consolidation of staff in IT, by merging similar functions and reducing duplication in some strategic functions. Not all of these are tied up in outsourced contracts, said the report.
"There are currently separate IT teams providing IT desktop, application and network support to primary schools, totalling some 30 staff. It should be possible to provide the same or even better service with a single, smaller team and less management overheads which will continue to meet the expectations of head teachers," said the report.
The councils said that strategy functions in each authority could be pooled around technical design, new technologies, collaboration and unified communications. But they said that while this is unlikely to deliver savings it will assist with the formation of a common plan for converged services.