Bridge House Trust has restructured its grants programme to tackle specific social problems, such as weapons use by children and young people.
The programme, launched this week, follows an extensive consultation and review exercise with the trust's key stakeholders.
The new approach is designed to ensure that funding is used as effectively as possible and reflects the needs of society. This year, £16.5 million is available.
The trust, which offers smaller sums of less than £5,000 for projects needing a quick cash injection and three-year grants of around £100,000 to larger organisations, has created five new grant-making categories.
These include providing access for disabled people, improving the environment and tackling issues affecting children and young people. Within each category, the trust has outlined more specific aims, such as building sustainable development, environmental justice and tackling youth violence.
"We were very keen to make sure that we weren't operating in a vacuum," said chief officer Clare Thomas. "Effective grant making has to depend on dialogue with the sector."