Egmont, Publications International, Grosvenor and Finsbury Foods join programme.
Hit Entertainment has signed up a further four partners for Mike the Knight, bringing the total to 30.
Egmont and Publications International will be launching annuals and sound books respectively in autumn 2012, while Grosvenor is planning a line of toiletries and dental care this Christmas.
Finsbury Foods will then be launching celebration cakes in spring 2013.
"Securing a total of 30 licensees when the TV programme has only been on air for three months is a massive achievement and testament to the faith that our partners have in the brand," said Jon Owen, SVP, Hit Brands Global. "With the first products launching at retail, 2012 looks set to be a bumper year for Mike the Knight."