After World War II, the Trust expanded its social welfare programs and released reports about health and nutrition in the United Kingdom.

To support the goals of the CYPI, the Trust funded research, conferences, demonstration projects, training, networking, publications, and online initiatives.

Later that year, the Trust helped to secure £4m to create Participation Works, the national centre for youth empowerment in the United Kingdom.

There was an increasing concern that the Trust's model of short-term funding, prevalent across the foundation world, had not been an effective way of addressing changing issues and needs.

In 2004, Trustees decided to end the Trust's grant funding and to operate at a more strategic level in order to influence public policies and practice in more sustainable ways.

The Trust no longer takes unsolicited grant applications, but seeks to build partnerships with other organisations for specific pieces of work.