Glanbia is worth €7m to Westmeath annually.
Westmeath County Council will write to the housing minister asking him to review the role of An Taisce.
Some elected members are concerned that the environmental group intends to take a planning case to the European courts regarding the construction of a cheese facility in Kilkenny.
Cllr Tom Farrell says Glanbia is worth 1.1bn euro to the Irish economy - and 7 million euro in Westmeath alone.
He believes An Taisce is necessary, but says they're not making good use of taxpayers' money.
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