Romina, Cristina, Sveva and Adria have been bred to incorporate health benefits, with Romina and Cristina already being established commercially, said breeder Professor Bruno Mezzetti.
He added that the deal "has added great commercial focus to the programme and will enable our varieties to enter many new markets".
Hargreaves managing director Rupert Hargreaves said: "The breeding success has been exceptionally good in a relativity short space of time. Already a large number of plants are being multiplied of Romina and Cristina, with staggering market interest."
Meanwhile, Angus Soft Fruits has signed an exclusive licence agreement with Italian soft-fruit cooperative Sant'Orsola for two floricane raspberry varieties - Lagorai Plus and Vajolet.
The agreement gives the Scottish company exclusive rights to propagate the varieties in the UK.