Value Creation Resulted from Pure-Play Transformation of the Business

NEW YORK, June 9, 2026 /PRNewswire/ -- Sentinel Capital Partners, a private equity firm that invests in promising midmarket companies, today announced the sale of NSI Industries, a leading manufacturer and supplier of branded electrical products, to Hubbell Incorporated (NYSE: HUBB) 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."

Sentinel's deep expertise in electrical manufacturing and distribution includes ECM Industries (electrical products for construction, maintenance, lighting, irrigation, landscape supply, and gas utility markets) and Power Products (diversified electrical products). Sentinel's broader expertise in industrial manufacturing and distribution includes investments in Chromalox (commercial and industrial electric heating products and systems), Engineered Controls (specialized pressure regulators, valves, and other controls), LTI Boyd (engineered sealing and thermal management components), RotoMetrics (rotary tooling products), Sonny's (conveyorized car wash systems and related products), and Spectrum Safety Solutions (fire detection and suppression products).

Lincoln International and Baird are serving as financial advisors to Sentinel, and Kirkland & Ellis is providing legal counsel.

About NSI Industries

NSI Industries is a leading manufacturer and supplier of over 15,000 branded electrical products that are sold to over 2,000 distributors in North America. NSI Industries is made up of a portfolio of well-respected brands, including Bridgeport fittings, Polaris connectors, and Tork timers. NSI Industries is headquartered in Huntersville, North Carolina.

About Sentinel Capital Partners

Sentinel is a leading midmarket private equity firm. Working collaboratively with portfolio companies, Sentinel offers operational resources and strategic advice that help its management teams solve challenges, capitalize on opportunities, and build stronger, more valuable businesses. Sentinel also provides junior capital solutions as a minority investor.

Sentinel focuses on niche markets across the business services, consumer, healthcare services, and industrial sectors. Since its inception in 1995, Sentinel has raised more than $11.2 billion of capital. To learn more, please visit sentinelpartners.com.

About Hubbell Incorporated

Hubbell Incorporated is a leading manufacturer of utility and electrical solutions enabling customers to operate critical infrastructure safely, reliably and efficiently. With 2025 revenues of $5.8 billion, Hubbell solutions electrify economies and energize communities. The corporate headquarters is located in Shelton, Connecticut. For additional information, please visit: www.hubbell.com.

Contact: Roland Tomforde
Broadgate Consultants
212-232-2356

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SOURCE Sentinel Capital Partners