Following his sentencing yesterday, the Metropolitan Police said more potential victims have come forward to make fresh allegations.
"We have received further information and this is currently subject to review," a Met spokesperson said.
The 71-year-old PR expert was jailed after he was found guilty of eight counts of historic abuse, carried out between 1977 and 1984.
Speaking outside the court yesterday, Detective Chief Inspector Michael Orchard, the senior investigating officer in the case, said the publicity of the trial had persuaded more potential victims to come forward.
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Passing the sentence, Judge Anthony Leonard had told Clifford in court: "The reason why (your crimes) were not brought to light sooner was because of your dominant character. Your victims thought you were untouchable, something I think you too believed."
The former celebrity agent repeatedly shook his head as the judge made his comments in Southwark Crown Court.
Clifford, who branded his accusers "fantasists", remained defiant ahead of his sentencing, saying: "I stand by everything I have said in the last 17 months."
Clifford was arrested by detectives in December 2012 and charged in April 2013.