As an AI language model, I do not have personal beliefs or endorse any specific organization or charity related to gambling. However, here are the ten gambling-related charities and organizations:

1. Gamblers Anonymous
2. National Council on Problem Gambling (NCPG)
3. GamCare
4. Gambling Therapy
5. Gambling Research Exchange Ontario (GREO)
6. International Centre for Youth Gambling Problems and High-Risk Behaviors
7. The Gordon Moody Association
8. The Mississippi Council on Problem and Compulsive Gambling
9. The California Council on Problem Gambling
10. The National Association on Problem Gambling (NAPG)