SIS Workspace have been Irwin Mitchell's workplace furniture provider since 2004, supplying close to 2000 workstations from Haworth's Tutti range in offices in London, Manchester, Leeds, Sheffield, Bristol, Malaga & Madrid.

The Irwin Mitchell extensively researched the office furniture market and the Tutti system, which in Italian means "everything", was chosen against stiff competition from the likes of Steelcase and Herman Miller, primarily down to the fact that the system has the unique ability and flexibility to furnish both fee earners pods and secretarial workstations from the same few key components.

The Tutti system was initially installed in Irwin Mitchell's new state of the art headquarters in Sheffield, where over 750 workstations were installed in a four week period. The ability to do this has given Irwin Mitchell incredible flexibility over the years when churning and reconfiguring furniture not only within the same offices but also between offices around Europe.