MPs think charities are the organisations that communicate most effectively with them, according to a survey by the polling firm Populus.
The company gave 126 MPs a list of different types of organisation including charities, airlines, higher education institutions and healthcare companies, and asked them to rate each one on how effectively they engaged with them.
Charities topped the list, with 88 per cent of Conservative MPs, 87 per cent of Labour MPs and 100 per cent of Liberal Democrat MPs saying they performed "very well" or "quite well".
The survey also found charities ranked low on a list of organisations that MPs thought were likely to face "difficult communications challenges" over the next five years.
The MPs were asked to tick three or four organisations from the list that they thought would do so. Private equity firms came top, being named by 59 per cent of MPs, and healthcare companies came second, with 41 per cent mentioning them.
Twenty per cent of the respondents listed charities as one of the groups that would face these challenges.
Of the MPs polled, 51 were Conservative, 60 were Labour, 10 were Liberal Democrat and five were from other parties.
The data was weighted to be representative of the political make-up of the House of Commons. The survey, part of the firm’s Parliament Panel survey, was carried out in June and July.