The names of around 100 firms and individuals who allegedly used corrupt private investigators was handed from Serious Organised Crime Agency (Soca). Soca has come in for criticism over the way it has dealt with the case sparking a row over transparency.
In a letter to the Home Affairs select committee information Commissioner Christopher Graham wrote: "The documentary evidence we hold in relation to these clients is considered significant, and this gives us the best opportunity of instigating criminal proceedings."
The "blue-chip hacking" list was drawn up at the request of the committee and relates to Soca's Operation Millipede, which led to the conviction of the private detectives jailed for fraud in 2012.
Britain's data watchdog is poised to call in the FBI to investigate the so-called blue chip hacking scandal, it has been reported.
Information Commissioner Christopher Graham has told MPs he will contact United States authorities after finding a number of companies contracted private investigators in the UK to hack, blag and steal sensitive data, according to the Independent.
Mr Graham has also revealed that "Demand for Access" notices are being prepared so investigators can get at further evidence from the 11 clients in Britain.
They hired four private detectives jailed two years ago after accessing bank account and mortgage details, medical records and information from the Police National Computer, it added.