The Havering Association of Voluntary and Community Organisations is to close in September after experiencing funding problems.
The charity, which supports voluntary organisations in the London borough, plans to continue delivering services until its contractual obligations are completed at the end of September.
The charity, which was established in 2001, plans to host its final annual general meeting in late September.
Kim Guest, chief executive of Havco, said in a statement posted on the charity’s website that Havco had faced a reduction in funding for voluntary sector infrastructure organisations.
Havco’s latest accounts filed with the Charity Commission show that its income halved from £1m in 2010 to £500,000 in 2014.
"At a time when there is increasing demand for volunteers and the services provided by the voluntary sector, the funding to support the work has significantly reduced and makes it impossible for the organisation to continue.
"We know that many of our members and service users are faced with similar challenges."
She said that Havco had experienced uncertainty with regard to its future sustainability amid a cycle of cuts and reduced funding streams for voluntary sector infrastructure.