Northgate do health screening services http://www.northgatepublicservices.co.uk/ They’re offering two placements:
Milton Keynes: https://northgate.taleo.net/careersection/public_services/jobdetail.ftl?job=MIL00007P
Bracknell https://northgate.taleo.net/careersection/public_services/jobdetail.ftl?job=NOR00009G
Aber CS student Tom Wise is currently out on placement with them.