The agreement will see its products offered by an extra 3000 advisers.
Alison Pallett, director of sales at Bank of Ireland UK, said “There is great excitement surrounding this partnership. This roll out is the next phase, which sees our distribution widening.
“It comes at a time when we’re rolling out new technology in order to better support brokers, expanding our sales and underwriting teams and opening a new processing centre - and alongside our new partners we are better placed than ever to provide the products and service our customers are asking for.”
Last month Bank of Ireland UK unveiled an online application system designed speed up processing times to make the process more efficient for brokers.
Emma Hollingworth, mortgage sales director at Intrinsic Network, said: “We work tirelessly to provide the best possible proposition for our network of advisers, and the ability to work with one of the very best UK lenders really strengthens that offering.
“From today, our organisations can work together as a combined team to ensure the best deals for our customers.”
