Virgin Media achieved a customer score of 60 per cent, sending it to the bottom of the table alongside Now Broadband.
Virgin Media customers face an increase of £3.50 a month - adding £42 a year to their bill - from April, while the company is also being investigated by Ofcom for its complaints-handling and the difficulties faced by customers when cancelling contracts.
Now Broadband fared particularly poorly for connection speed and ease of contact.
BT, Sky and TalkTalk received scores of 64 per cent, 62 per cent and 61 per cent respectively.
Zen Internet, which is not imposing mid-contract price hikes, earned the highest ratings...