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Derevoya is a holding company for the McMahon group, a Limerick-based family-owned building materials' supplier. The McMahon business was founded in 1831. Up to the 1990s it was a timber supplier but then it developed into a full product offering provider.

Financial Data


By Turnover

(€98 million)

By Employees

507th in Top Companies By Turnover
  • 270
  • €98 million


  • Mark McMahon CEO/Managing Director

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