The service this month wound up the companies after securing orders from the High Court to shut them down "in the public interest".
Two of the companies, Publications Limited and PPA (UK) Limited, were operating from the same address in Liverpool. The other two, Hamilton Forbes and Price Chamberlain, were based together at an address in Burscough, Lancashire.
All four were found to have misled companies that bought advertising space about the amount of funds that went to charity.
PPA had drawn up an agreement with cancer charity Tenovus in 2005 to publish fun books on its behalf.
Tenovus spokeswoman said the charity was aggrieved by PPA's actions. "Tenovus met all the legal obligations of this agreement, but is angry that PPA did not," she said.