The Mail reckons that Comic Relief donated £1.4m to Kids Company between 2000 and 2014. The charity's broadcast partner is the BBC ("With the BBC’s help, Comic Relief has achieved more than we could have ever thought possible.") Current BBC Trustees of Comic Relief include Tim Davie and Peter Salmon, alongside Danny Cohen, currently seeking new opportunities. Here's another BBC supporter.
The only reference to KidsCo in formal Comic Relief documents I can find is in The Trustees report for year ending July 2012. It notes that "83% of the 11,500 children that Kids Company works with across 40 schools in London,
achieved a positive education outcome – many of these young people have profound difficulties caused by traumatic events in their lives."
Samsung UK is another donor that may have been swayed by the numbers game: "Kids Company works with over 17,000 children in London alone every year, offering them emotional and educational support. Samsung opened its first Digital suite at Kids Company’s Urban Academy in October 2012, and in 2013 opened its second facilities at their Kenbury Centre."
US Olympic athletes also lighted upon Kidsco at the 2012 games.