"We are calling on the US government: take NDI and IRI out of Georgia ... We are an independent sovereign country. No one has the right to artificially change our opinion, our attitude and our reality", the Alliance of Patriots of Georgia said in a statement.
The opposition party also called on the Georgian government to launch a probe into the US organisations, accusing the NDI and the IRI of distributing disinformation by falsifying poll results.
The Alliance of Patriots of Georgia favours starting a direct dialogue with Russia.
The opposition party has recently conducted a poll in Georgia's major cities, revealing that the majority of those interviewed support military non-involvement, while polls by the US organisations show that most Georgians would like the country to join NATO and the European Union.