1. University of Stirling UK
2. British Geological Survey Edinburgh UK
3. Durham University UK
4. University of Glasgow, Scottish Universities Environmental Research Centre (SUERC) UK
5. University of Sheffield UK
6. University of Liverpool UK
7. University of Bangor UK
8. Newcastle University UK
9. NERC Radiocarbon Laboratory East Kilbride UK
10. University of Cologne Germany
11. Victoria University of Wellington New Zealand
12. University of Leicester UK