The Legacy Promotion Campaign is opening its door to smaller charities by introducing a new membership band for organisations with annual incomes of up to £250,000.
This year, the campaign has increased its membership to 140 charities and is aiming to become even more inclusive by offering a £650 discounted band for smaller charities.
It is also forming a stronger steering group, which it is hoped will bring increased knowledge and expertise to reflect the campaign's size and diversity.
New members include Stephen Hudd, director of fundraising at Coram Family, and Richard Popper, head of central fundraising at the RNLI.
Jonathan Parris, director of the Legacy Promotion Campaign, said: "The new smaller charities band means that even more charities can get the message through to prospective legacy donors who, ordinarily, they cannot identify or afford to reach."