Royal Society of Chemistry http://www.rsc.org/ the site for the largest organisation in Europe promoting chemical science.
Science across the World http://www.scienceacross.org/ promotes and sets up links between schools across the world for science projects.
The Science, Technology, Engineering and Mathematics Network (STEMNET) http://www.stemnet.org.uk/ A UK-wide charity that promotes Science Technology Engineering and Mathematics (STEM) awareness, especially among young people
The STEM Clubs Network http://www.stemclubs.net managed by STEMNET on behalf of DCSF. Provides a social networking environment for STEM clubs as well as professional support, networking and CPD opportunities for STEM club leaders.
Undergraduate Ambassadors Scheme http://www.uas.ac.uk/ Links STEM university undergraduates to teachers in local schools.
The Wellcome Trust http://www.wellcome.ac.uk/ The Wellcome Trust is an independent charity funding research to improve human and animal health.