NEW YORK/PRNewswire/ — Sentinel Capital Partners, a private equity firm that invests in promising midmarket companies, announced the sale of NSI Industries, a leading manufacturer and supplier of branded electrical products, to Hubbell Incorporated for $3.0 billion. Sentinel acquired NSI in November 2024.
NSI is a category-leading provider of more than 15,000 branded replenishment electrical power components serving industrial, infrastructure, and commercial end markets. Its core offering of electrical fittings, connectors, components, and wire management products is sold under the iconic brands Bridgeport, Polaris, and Tork via a network of more than 2,000 third-party distributors and contractors throughout North America. NSI has delivered impressive and consistent sales growth, driven by steady, replacement-driven demand and an expanding presence in high-growth end markets, including digital infrastructure and electrification applications like power utilities and data centers.
In October 2025, Sentinel sold NSI’s market-leading HVAC division, which included the Duro Dyne and Supco brands, to Lennox International for $550 million. This divestiture refocused NSI as a pure-play manufacturer of branded electrical products.
“We were honored to partner with the talented team at NSI,” said John Van Sickle, a Sentinel partner. “Together, we strategically transformed NSI into a pure-play leader in electrical components, which was instrumental in unlocking value.”
“I’m grateful to Sentinel for its leadership and support in transforming our company,” said Mike Pruss, NSI’s CEO. “We are excited about the growth opportunities for our business and team as part of Hubbell.”
Lincoln International and Baird are serving as financial advisors to Sentinel, and Kirkland & Ellis is providing legal counsel.
The nearly $3 billion deal was announced on tEDmag.com in May.
Publisher’s note: A previous version of this story had an incorrect amount of this acquisition. This has been corrected. – S.C.
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