The Football Association says it will punish any agents found to have broken rules in the Premier League's report into the Ashley Cole tapping-up case.
European agent Pini Zahavi and Cole's agent Jonathan Barnett were criticised but cannot be punished by the League.
"We will make any further enquiries, which may be necessary. If there are breaches of agent regulations we will pursue them," said an FA spokesman."
The FA could give relevant information about Zahavi to Fifa or the Israeli FA.
That is because he is not registered in England.
The FA has a code of conduct for all agents registered in England, which complies with Fifa guidelines, and is currently investigating whether those articles were bypassed during the Cole affair.
An independent commission, which was set up by the Premier League, fined Chelsea £300,000 and handed them a suspended three-point deduction.
England full-back Cole and Blues boss Jose Mourinho were also both fined for their part in an illegal meeting earlier this year.