Virgin Money Giving has signed a three-year agreement with Grounded Events to be the official fundraising partner of the Brighton Marathon weekend.
The deal begins next week, immediately after this weekend's marathon, which is expected to be finished by 12,000 people, making it the second-largest marathon in the UK.
The marathon has raised more than £35m for charity since it began in 2010, and Virgin Money Giving and Grounded Events hope their agreement will generate a further £18m by 2020.
The 26.2-mile race is the centrepiece of a weekend of running events in Brighton, which also includes a 3,000-entry 10k and shorter races for younger people.
The events company Grounded Events organises the weekend and sells marathon entries to 300 charities, which then select runners to fundraise on their behalf using Virgin Money Giving's online platform.
Jo Barnett, executive director at Virgin Money Giving, said: "The 2018 Brighton marathon will be the biggest and best yet, and Virgin Money Giving will ensure even more money is raised for good causes."
Tom Naylor, managing director of Grounded Events, said the two organisations shared the same values. He said: "We both want to use our expertise to help everyone raise as much money and awareness as possible for great causes."
If you’re interested in fundraising, you can’t miss Third Sector’s Annual Fundraising Conference on 23 and 24 May. Click here for more information and how to book