The Government is being urged to plug the gap in funding to voluntary projects throughout the north east of England.
The Invest 2006 Campaign has written to three government ministers - Paul Goggins, David Miliband and Alun Michael - to warn that jobs will be lost in the region when European funding and the Single Regeneration Budget are both run down after the end of this year.
Invest 2006 has estimated that the loss of funding for the region's voluntary sector after 2007/08 will be around £47m and could lead to about 1,880 job cuts and the loss of 4,000 volunteers.
Letters have been sent urging the Government and One NorthEast, the regional funding co-ordinator, to acknowledge the likely funding shortfall following the demise of the funding programmes.
It also calls for measures that will compensate for the loss of EU funding, such as the provision of gap funding pending new EU programmes and ensuring the Government builds in social inclusion programmes.
Diva, a domestic violence awareness charity in Newcastle, is concerned that the end of Single Regeneration Budget funding will leave a huge gap in its work.
Pummi Mattu, manager of the group, said: "Diva has raised big issues about violence, but now there is no one to take the work forward."