YES Energy Management Inc

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A service leader in utility expense management and billing services, ista North America offers water, gas and electricity to multifamily, residential and commercial properties. The company s roots were established in 1902, when Clorius was established in Denmark. After various mergers and acquisitions, the company became known as ista North America in 2005. Headquartered in San Diego, ista North America has additional offices in Irvine, Calif.; Jacksonville, Fla.; and Atlanta.