The recent surge in the stock market has enabled charities to recoup around £3.3bn in the value of their equity investments, according to investment firm Close Wealth Management.
But charities are warning that after a three-year financial crisis they do not think they are out of the woods yet.
Close estimates charities have enjoyed a £3.3bn increase in the value of their investments since the end of March. But they are still worth some £5.3m less than they were at the beginning of January 2002 in the middle of the bear market.
Close chief executive Martin Smith commented: "Charities and voluntary organisations have benefited from the recent market rises but still have a long way to go to recoup the losses they have suffered over the past three years."
Norman Connor, finance director of the Stroke Association, said his charity had a long way to go to catch up after three consecutive years of investment losses.
"We also rely on legacies and fundraising. Those sources of income have been put under pressure by stock markets and property valuations. None of us can sit back and relax," Connor said.
Stephen Burgess, charities consultant at accountants Saffery Champness said: "While good news, it is premature to see this improvement in investment returns as an end to the recent financial problems of the sector.
"The few large charities with their own invested reserves may well breathe a sigh of relief but there is still a rocky road ahead for the majority that depend on grants, sponsorship and public donations."
Last year, David Bailey of Deutsche Asset Management said that it would take charities three years to completely recover losses incurred in the bear market.