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Noresco, LLC provides energy and water efficiency solutions through performance contracts and consulting.
Founded in 1984 and headquartered in Westborough, US, Noresco, LLC provides energy savings performance contracts, efficiency retrofits and sustainability consulting for federal and state governments, universities, healthcare providers and commercial buildings in the US and Canada. OpTerra Energy Group, a portfolio company of LS Power, agreed in July 2026 to acquire the company from Carrier Global Corporation and Oaktree Capital Management, and the transaction was completed in August 2026. Financial terms were not disclosed.
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