Volunteering Matters has chosen its new president.
Lord Freud, a Conservative peer and Minister for Welfare Reform between May 2015 and December 2016, has taken up the role after having previously helped the charity set up its Grandmentors programme, which matches over-50s volunteers with young care leavers.
He has replaced Lord Levy, a Labour peer and former personal envoy and special adviser on the Middle East to Tony Blair between 1998 and 2007, who has stood down after 20 years in post.
Oonagh Aitken, chief executive of Volunteering Matters, who has announced she will depart the charity later this year, said Levy had been a source of "continuous expert and enthusiastic support" for Volunteering Matters for two decades.
She said: "Lord Freud has been a game-changer, helping our volunteer managers to launch Grandmentors in 10 areas across the UK.
"As a former government minister, he has a tremendous understanding of the voluntary sector and will enable Volunteering Matters to go from strength to strength."
Freud said he was delighted to be chosen as the new president for the charity.
"I believe volunteering can change our society for the better and, in particular, can be the key to transforming the outlook for the most vulnerable people in our communities," Freud said.
"I look forward to working with the whole organisation to help to create projects that will have that transformational impact."
Levy said: "It has been an enormous honour to serve as president for 20 years, and I feel that now is the time to move on.
"Volunteering Matters is the sector leader in all things volunteering, making projects that are impactful and rewarding for individuals and communities. I wish to thank our dedicated staff and volunteers, who have made this possible.
"I wish Volunteering Matters continued great success for the future."