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    .. get in touch

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Registration & Event Enquiries

Call us on 0207 609 6695 (any event)

or email  (general Series queries)

Find your event Email address below:

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Event Staff / Volunteering

Press & Media Enquiries

Call us on 0207 609 6695

or email 

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 About Action Challenge...

... we have been organising challenge events across the world since 1999 which have raised over £70 million for many UK charities. We are based in London and plan and operate high quality events and inspirational adventures for individuals to join, plus bespoke challenges for charities and companies. Join us on one of our events - and push yourself further!

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Download our APP...

Search 'Action Challenge' in the App Store / Google Play. Enter code AC1 to get started and see what's there in the 'need to know' section! The APP can be used to download details of individual Challenges and to get our special offers and latest news.

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Sponsorship Opportunities

We are looking for suitable partners to compliment our Ultra Challenge brand. We'll have over 20,000 participants take on a challenge in 2019 and a database of 50,000+ past participants. With a loyal following based on delivering the UK's best endurance events and a great participant journey - we enable ordinary people to push themselves further!


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Action Challenge Ltd - Reg No: 03825838 - Reg Office: 1 Gunnery Terrace, Woolwich, London, SE18 6SW

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Some great treks we operate

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