The £35m turnover company, which has offices in Cheltenham, London and Edinburgh, offers services ranging from print and postal management through to campaign development, setting up and managing prize-led fundraising projects and building web to print sites for both charities and commercial businesses. Its clients include The British Heart Foundation, UNICEF, Christian Aid, World Vision, Endsleigh and Lloyds TSB.

The award for best supplier was introduced into the Institute of Fundraising Awards for the first time this year. Brightsource won the category for the work it has done with charities over the past 12 months.

Brightsource client service director Barney Hosey said: "To be recognised, alongside the sector’s best fundraisers, with the supplier award was a real honour."

Brightsource, which employs more than 70 staff, is part of the Cello Group, a strategic marketing group which is listed on the AIM.