As the other post Hitachi Consulting are the consulting arm of Hitachi...it was formed in the US originally by taking over a sections of old Anderson Consulting's operations
They started in the UK last year (and in other parts of Europe) with good capital backing from the parent..main focus is Insurance and Public Sector..Insurance is headed by a guy who used to run EY's insurance division
I was offered a position with an excellent package but for I ended up accepting another offer...
Acquisitions is a part of their growth strategy (and they seem to have the capital to do it)..they have recently bought Impact Plus
Worth a look if you want to join a mid sized firm..