Many charity partnerships hinge on the enthusiasm of one person, who is often a chief executive or senior manager, says Stephen Uden, head of corporate citizenship at Nationwide Building Society.
But the building society's partnership with Macmillan Cancer Support rests on multiple points of contact, he says. "People move on and the relationship survives," he says.
In partnership terms, it has survived into old age and recently celebrated its 20th birthday, having raised £6.5m thus far.
The main methods of fundraising have been through the involvement of Nationwide employees in the renowned Macmillan fundraiser, the World's Biggest Coffee Morning, team and individual challenge events and a payroll giving scheme in which 4,000 Nationwide employees give a penny of their salary to Macmillan every month.
The charity partnership has moved beyond employee involvement to include Nationwide's 15 million members. Nearly £200,000 was raised in 2013 through a 20p per head donation to Macmillan, made if members voted by post for AGM resolutions and signed up for e-voting.
"Nationwide is one of the longestrunning partnerships that we have," says Emily Shelford, head of account management at Macmillan.
The partnership has evolved from pure fundraising to collaboration on a work and cancer toolkit that provides guidance to managers on appropriate support for Nationwide employees who are diagnosed with cancer.
"In a world where partnerships are often short term, I think that both partners get a lot out of it," says Uden.