Mr Cruddas was k after he was secretly filmed by undercover reporters from The Sunday Times boasting that he could provide access to Mr Cameron and other ministers and influence over policy for "premier league" donors giving £250,000 to the party.
In the wake of the disclosures the Conservatives released details of party donors attending dinners and lunches held at the Prime Minister's official residences at No 10 and Chequers.
He was also said to have claimed he served a "ruby murray" - curry - to Mr Cameron's wife, Samantha, when she was his dinner companion at a charity event at Chequers which he sponsored.
Although the event, on October 15 last year, was mentioned on the list released by the Conservatives, no reference was made to Mr Cruddas's involvement.
In a statement, the Conservative Party said:
Over last weekend there was speculation about dinners in the Prime Minister's flat in Downing Street. In response to this, the Conservative Party published details of occasions when significant donors had lunch or dinner in official residences used by the Prime Minister, ie Downing Street and Chequers. The Conservative Party never claimed that it was publishing details of every occasion the Prime Minister had met with a donor and explicitly did not publish details of the Chequers charity opera event in aid of Mencap and other smaller charities. This was attended by a large number of people, including donors to both the Labour Party and the Conservative Party. It is a longstanding event, organised by a fundraising committee and it raised £1 million for the charities.