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Riom Riom is hosting five of the largest companies in France (France). According to the NACE-activities of the biggest companies, Riom is the city of the NACE-Code: "24: Manufacture of chemicals and chemical products"
City:	Riom (See Map below)
Country:	France (France)
Largest companies:	Auvergne Copie Service SARL Santex SA Mecatronic SA Lycee Professionnel Gilbert Romme Auvergne Viande S A
City Id:	6944

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