The mutual will now offer its deals throughout England and Wales, following a trial with three shared ownership firms across the UK.
Distribution for the products will be carried out by network partners.
The move comes a year after a similar expansion of its buy-to-let offering, when it announced its landlord deals would be available in England and Wales through the Legal & General Mortgage Club.
Tracy Simpson (pictured), head of lending at the Cambridge, said the expansion of its shared ownership offering would help more people buy a home.
She added: “We have expertise that can support borrowers and intermediaries alike and my team are looking forward to talking through cases.
“At the Cambridge we understand that our intermediary partners value the personal approach we offer in our service, and through our partners we look forward to maintaining this service when supporting a wider audience.”