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Sentinel Capital Companions Sells NSI Industries’ HVAC Category to Lennox for $550 Million


Divestiture Returns NSI to Natural-Play games Electric Merchandise Trade

NEW YORK, Oct. 16, 2025 /PRNewswire/ — Sentinel Capital Companions, a personal fairness company that invests in promising midmarket firms, as of late introduced the sale of NSI Industries’ HVAC section—which contains the market-leading Duro Dyne and Supco manufacturers—to Lennox World for about $550 million in money.

With this divestiture, NSI will refocus as a pure-play producer of branded electric merchandise offered below iconic names like Bridgeport, Polaris, and Tork. Insulated connectors, fittings, and alternative high-value-add elements with secure, replacement-driven call for will stay the core of NSI’s providing.

“There is an excellent strategic fit between NSI’s HVAC division and Lennox,” mentioned John Van Sickle, a Sentinel spouse. “This sale returns NSI to its roots as an electrical products company serving distributors nationwide. Our partnership with NSI’s talented management team builds on the company’s strong record of success, great brands, and reputation for superior service to electrical customers.”

“We’ve been proud to call NSI home for the past four years and look forward to joining the Lennox team in our next chapter of growth,” mentioned NSI’s HVAC President, John MacQuarrie. “We remain focused on operational excellence, product innovation, and delivering exceptional value to our customers.”

Sentinel’s experience in electric production and distribution contains prior investments in ECM Industries (electric merchandise for building, repairs, lights, irrigation, ground provide, and fuel use markets) and Energy Merchandise (different electric merchandise). Sentinel’s broader business production and distribution experience contains investments in Chromalox (business and business electrical heating merchandise and methods), Engineered Controls (specialised power regulators, valves, and alternative controls), LTI Boyd (engineered sealing and thermal control elements), RotoMetrics (rotary tooling merchandise), Sonny’s (conveyorized automotive wash methods and indistinguishable merchandise), and Spectrum Protection Answers (fireplace detection and suppression merchandise).

About Sentinel Capital Companions

Sentinel is a main midmarket personal fairness company. Operating collaboratively with portfolio firms, Sentinel deals operational sources and strategic recommendation that support its control groups clear up demanding situations, capitalize on alternatives, and form more potent, extra decent companies. Sentinel additionally supplies youthful capital answers as a minority investor.

Sentinel makes a speciality of area of interest markets around the trade products and services, client, healthcare products and services, and business sectors. Since its inception in 1995, Sentinel has raised greater than $11.2 billion of capital. To be informed extra, please consult with sentinelpartners.com.

About NSI Industries

Headquartered in Huntersville, North Carolina, NSI is a main producer and provider of branded electric elements to third-party vendors in the US and Canada. NSI’s portfolio contains well-respected manufacturers comparable to Bridgeport, Polaris, and Tork, and the corporate deals greater than 10,000 merchandise all over North The us. For more info, consult with www.nsiindustries.com.

About Lennox

Lennox (NYSE: LII) is a pace-setter in energy-efficient climate-control answers. It’s dedicated to sustainability and growing comfy, more fit environments for residential and business consumers. Its leading edge portfolio contains cooling, heating, indoor wind attribute, and refrigeration methods, in conjunction with a complete space of HVAC portions, provides, and products and services that assistance the entire lifecycle of purchaser wishes. Supplementary data is to be had at www.lennox.com. For media inquiries, touch [email protected].

Touch: Roland Tomforde
Broadgate Specialists
212-232-2222

SOURCE Sentinel Capital Companions



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