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Olten Olten is hosting 18 of the largest companies in Switzerland (Schweiz). According to the NACE-activities of the biggest companies, Olten is the city of the NACE-Code: "40: Electricity, gas, steam and hot water supply"
City:	Olten (See Map below)
Country:	Switzerland (Schweiz)
Largest companies:	Alpiq Holding AG Aare-Tessin AG für Elektrizität Swiss Prime Site AG R. Nussbaum AG MTF Schweiz AG
Homepage:	https://www.olten.ch/
City Id:	677

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