The mission of the American Happiness Association is to be the premier organization dedicated to raising awareness and providing education and resources for how people can choose to be happier. Their goal is to significantly increase the level of enduring happiness worldwide.

The University of Cambridge Well-being Institute is a cross-disciplinary initiative which aims to promote the highest quality research in the science of well-being, and to integrate this research into first rate evidence-based practice.

The Glasgow-based Centre for Confidence and Well-Being disseminates knowledge in Positive Psychology. See their Resources section for a comprehensive overview of many positive psychology topics.

Centre of Applied Positive Psychology is a membership organisation that focuses on the applications of strengths research.

The mission of the International Positive Psychology Association (IPPA) is to promote the science and practice of positive psychology and to facilitate communication and collaboration among researchers and practitioners around the world who are interested in positive psychology.

Mindapples is an independent organisation dedicated to promoting mentally healthy living for everyone through everyday activities. Their website asks each of us to identify a 5-a-day for our minds, and shares the responses to help everyone find five things that work for them. If you can look after your body by going for a run, or eating an apple, then what’s the equivalent for a healthy mind? Mindapples want to open up a new, positive conversation about how we can take better care of ourselves, and remind us that we all have mental health, and we can do much more to take care of ourselves.

New Economics Foundation’s well-being programme aims to promote policies that help people live more fulfilled lives.

The Office for National Statistics' Wellbeing Knowledge Bank is a repository of links and information, pertinent to the wellbeing topic. These range from relevant papers, events and activities to the ONS's own work plans.

Personal Well-Being Centre aims to promote the well-being and growth of individuals, organisations and communities through education, training and one-to-one work.

University of Pennsylvania Positive Psychology Centre provides Master of Applied Positive Psychology training in the US; the website contains useful resources for PP teachers and researchers.

The Young foundation supports UK-based positive psychology initiatives.

The University of East London offers MSc training in Applied Positive Psychology. This two-year part-time programme is led by Dr Ilona Boniwell and is taught by pioneers of positive psychology in Europe. It emphasizes skills development, including facilitation, intervention, and research skills.