PM David Cameron and Health Secretary Jeremy Hunt, Lib Dems Nick Clegg and Vince Cable are also on the list - here is the full rundown. Is your MP on there?
'Dossier of shame': Clegg, Cameron, Hague, Hunt, Duncan Smith and Lansley are named
1. David Cameron – Prime Minister
Handed a peerage to nursing and care home tycoon Dolar Popat, who has given the Tories more than £200,000 in donations.
2. Andrew Lansley - Former Health Secretary & architect of privatisationReceived a £21,000 donation in Nov 2009 from John Nash, the former chairman of Care UK.
3. Harriet Baldwin – Tory whipFormer executive at JP Morgan, a major player in private healthcare.
4. Greg Barker – former Energy MinisterHeld shares in Quester VCT 5 plc ,a venture capital firm with multiple investments in healthcare companies.