- Cafe 12
- Calcot Services for Children
- Calibre Audio Library
- Cancer Research UK
- Cancer Research UK (Oxford)
- Cancer Research UK Reading Fundraising Group
- Cancer Research UK Shop (Reading)
- Canine Partners
- Care Cultural Integration (CCI) limited
- Carebus Volunteer Group
- Catalyst Housing
- Catholic Agency for Overseas Development (CAFOD)
- Cats Protection (Reading & District)
- Caversham and District Residents Association (CADRA)
- Caversham Baptist Church
- Caversham Bridge (The Caversham Christian News Ltd)
- Caversham Childrens Fund
- Caversham Community Cafe (3Cs)
- Caversham GLOBE
- Caversham Good Neighbours
- Caversham Hall
- Caversham Heights Methodist Church
- Caversham Heights Pre-School
- Caversham Hill Toddlers
- Caversham Park Church (Local Ecumenical Partnership)
- Caversham Park Pre-School
- Caversham Park Village Association
- Caversham Primary School Association
- Caversham Women’s Institute
- Central Berkshire Education Business Partnership (CBEBP)
- Challengers
- Chance Coaching CIC
- Change Grow Live Reading
- Changing Faces
- Chapter2
- Charity Commission of England and Wales
- Chazey (Caversham Heights) Women’s institute
- Chemogiftbags
- Chernobyl Children Lifeline
- Chicks Camp
- Child Bereavement UK
- Children Heard and Seen
- Chilterns Conservation Board
- Chinese Cultural Society
- Chissock Woodcraft
- Christ Abundant Life Ministries
- Christ Church Woodley
- Christchurch Church of England
- Christian Aid
- Christian Community Action
- Christian Community Action Furniture Shop
- Christian Community Action Whitley
- Christians Together in Mission (TiM)
- Church House Caversham
- Church of God World-Wide Mission & Community Mission Project
- Churches in Reading Drop In Centre (CIRDIC)
- Churches in Reading Women’s Centre
- Churches Together In Reading
- Cianna’s Smile
- Cinnamon Trust
- Circles Network
- Circles South East
- Circles UK
- Citizens Advice Berkshire
- Citizens Advice Bracknell & District
- Citizens Advice Henley
- Citizens Advice Reading
- Citizens Advice Witness Service
- Civil Service Retirement Fellowship
- Clarity – Employment for Blind people
- CLIC Sargent
- Climate Change Centre Reading (CCCRdg)
- Club SC- Sonning Common Youth Club
- COATS
- Coeliac UK – Berkshire
- Coffee and Craft
- Coley Park Baptist Church
- Coley Park Community Association
- Coley Park Over 50s Club
- Colostomy UK
- CommuniCare
- Community Accountancy and Business Support (CAABS)
- Community Action Ark Project
- Community Education Trust
- Community Network
- Community Safety Partnership
- Community Service Volunteers
- Compass Recovery College
- Concern Worldwide
- Connect Reading
- Connecting Communities in Berkshire (CCB)
- Contact the Elderly (SE)
- Cornwell Community Church (Church of England)
- Crawshay Preschool
- Create
- Creating Better Futures
- Creative Support
- Crescent Under Fives Pre-School
- Crohn’s and Colitis UK – Berkshire Local Network
- Crossroads Care Reading
- Cruse Bereavement Care
- CTC Charitable Trust
- CultureMix Arts