- Outlooks Expeditions Greece 2021 - Daniel Murray
- Outlooks Expeditions Morocco 2021 - Annie Simson
- Outlooks Expeditions Morocco 2021 - Olivia Green
- Outlooks Expeditions Morocco 2021 - Teddy Sharp
- Outlooks Expeditions Tanzania 2021 - George Miller
- Outlooks Expeditions Zambia and Botswana 2020 - Lily Morrison
- Outolook expedition Borneo 2017 - Jacob Barrow
- Outook Expeditions Himalayas 2015 - Emily Davis
- Outposts Open Expedition Africa 2016 - Jordyn Tuffin
- Outreach 4 Wolverhampton
- Outreach Amazon - Robert Smith
- Outreach Cambodia 2019 - Harvey Woodward
- Outreach Christian Trust
- Outreach Christian Trust - Turriff
- Outreach Community Church - Strathaven
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- Outreach International - Paint a Wall in Nepal
- Outreach International Kenya 2016- Olivia Allatt
- Outreach Paramedics
- Outreach Project: India 2014 - The Royal Central School of Speech and Drama
- Outreach Research & Innovation Group Charity of the Year
- Outright Adventure (New Forest) CIC
- Outrun 24 Hour 2015 - Anthony Ramirez
- Outside In
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- Outward bound
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- Outwood Academy Ormesby Ruby Grace Biswas Watson
- Outwood Borneo 2027 - Sarah Emmett
- Outwood Bounds Slovenia 2019 - Alfie George Upton
- Outwood Bydales, Marske-by-the-Sea
- Outwood Cricket Club
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- Overcome
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- Oxfordshire, Buckinghamshire and Northants SERV
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- OzCampsIntTan
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- O’Halloran Hill Pelicans FC
- oge saving
- one nation welfare trust uk
- one woman Read-a-thon for MIND
- operation wallacea Madagascar 2017 - Megan Oldridge
- originalprojects
- outlook expeditions - Borneo 2025 - Lewis Rich
- outlook expeditions-Tanzania 2025-Charlie Bourne
