Broadband providers TalkTalk and BT have received the support of the Green Party in relation to their campaign against the Digital Economy Act.
The political party's Deputy Leader Adrian Ramsay has endorsed the providers' calls for a review of the legislation, which includes measures designed to tackle the illegal sharing of copyrighted material online.
Mr Ramsay added that the organisation had always been against the introduction of the legislation and suggested it would contribute to "a society of surveillance".
"The Digital Economy Act threatens to severely infringe civil liberties, as well as presenting problems to businesses and the economy," he explained.
"It could result in many people having their internet connection cut off through no fault of their own and restrictions to accessing open Wi-Fi networks."
Both BT and TalkTalk have suggested the Digital Economy Act was not subjected to sufficient scrutiny when it was rushed through parliament in April.