Hold on to your hats, everyone - for the fourth time we've worked in partnership with the Observer to unearth a group of change-makers doing their thing to create a different, better society.

Every two years, Nesta and the Observer pull together a list of radical thinking organisations and individuals developing creative ways of tackling society's biggest challenges.

This year's list, which includes representation from across the UK, was compiled from hundreds of entries and nominations and narrowed down by a panel of judges.

It features some inspiring examples of individuals and organisations working in fields as diverse as health and social care, the creative industries, international aid and education and skills.

The final list was launched in the Observer on 16 September, but you can read all about the final list in the case studies below.

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New Radicals