I don't know whether you are a man or a woman, but for women pretty much every university in the UK now has equality schemes in place (e.g. Athena SWAN) for those wanting to do PG subjects in STEMM subjects. There are also lots of equality grants e.g. http://www.bbc.co.uk/news/science-environment-25300669 If you find a university that does not have equality schemes for STEMM, be sure to remind the university that they will soon no longer recieve funding from the major funding bodies until they mend their ways and catch up with 21st century equality.