When asked to place organisations and professions in order of trust, the public gave charities an average of 6.6 out of 10, putting them third above social services (5.9), banks (5.5) and private companies (4.9), with newspapers and government ministers bringing up the rear (3.9).
Doctors topped the poll (7.5) with police (7) coming second.
The Commission's Public Trust and Confidence in Charities report was conducted by Ipsos Mori and surveyed a representative sample of 1008 adults and a separate boost of 202 black and ethnic minority interviews.
When asked what would increase their trust in a specific charity, 25 per cent of people said experiencing what the charity did first hand, 19 per cent said whether they believed in the cause, 16 per cent said because the charity had a good reputation and a further 16 per cent because a charity was well known, proving the importance of good comms.
The charities named most often were Cancer Research UK (15 per cent), NSPCC (9 per cent), and Oxfam (9 per cent).
The most frequently cited reasons for not trusting particular charities or types of charities included not knowing how a charity spent its money (26 per cent) and bad press (17 per cent).