The Giving Campaign has chosen two charities to continue the best of its work to promote "a culture of giving in the UK", after it ends its three-year tenure next June.
It won't reveal the names of the charities until contracts are signed, which is expected to happen over the Christmas period.
One charity will continue with the campaign's promotion of payroll giving, publicising Gift Aid and various tax-effective giving options. The other will continue the successful Giving Nation, set up 18 months ago to promote voluntary giving among schoolchildren, which now runs in half of the UK's secondary schools.
Peter Gilheany, the campaign's communications director, said the two schemes and the promotion of financial products that open up new charity income streams have been the campaign's biggest successes.
He defended the organisation's decision to run a short campaign. "Everyone here decided on three years when the scheme was devised," he said. "We thought its brevity would be critical in enabling it to challenge the status quo and believe its impact could be lost if we carried on, so only aspects of its work will continue."