The sexual and reproductive healthcare charity Marie Stopes International has increased its staff numbers by a third in the past year to 8,000 people, according to new figures.
The increase, announced alongside the charity’s annual impact report, means it is the UK's second-largest charitable employer. All but 500 staff are overseas.
Figures on the Charities Aid Foundation's Charity Trends website show that Nuffield Health, which employs just under 10,000 people, is the largest.
Marie Stopes has increased its staff numbers every year since 2005, when it had 457 full-time employees, its 2005 accounts show. It also roughly tripled its income to £115m in the four years to 2009.
Alex Brown, the charity’s global finance director, said the charity’s ability to grow was largely down to an increased interest in maternal health from donors, after it was adopted as one of the UN’s Millennium Development Goals.
"Donors have started to put a lot more money into the field that we’re in," he said. "I don’t think we have a model that other charities could replicate."
The charity was poised for further growth, he said.