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Groningen Groningen is hosting 70 of the largest companies in Netherlands (Holland). According to the NACE-activities of the biggest companies, Groningen is the city of the NACE-Code: "11: Extraction of crude petroleum and natural gas/ service activities incidental to oil and gas extraction excluding surveying"
City:	Groningen (See Map below)
Country:	Netherlands (Holland)
Largest companies:	N.V. Nederlandse Gasunie GasTerra B.V. DSM Biologics ESHA Nederland BV Nederlandse Gasunie NV
Homepage:	https://groningen.nl/
City Id:	562

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