The push, launching in July, aims to maximise sales of Mortgage Brain's new software, Premier Edition, to mortgage advisers.
It uses targeted email and DM plus online banners to drive new and existing Mortgage Brain users to a personalised microsite, also created by twentysix Leeds.
The site integrates with an outbound telesales campaign with the aim of achieving conversion success. Advisers who visit the microsite will be tracked and contacted by phone within a few minutes of initial online contact. As well as pushing Premier Edition sales, customer service staff will be able to answer questions immediately.
Mark Lofthouse, chief executive of Mortgage Brain, said: "twentysix Leeds answered the brief in a way that we believe will excite our existing customers and prospects.
"The creative demonstrated innovative thinking and showed they completely understood our brand, what we need to do to develop our communication and how to motivate our consumers."