#United States #New York #Sentinel Capital #NSI Industries #Hubbell Incorporated

Sentinel Capital Partners Completes Sale of NSI Industries

In a significant financial maneuver, Sentinel Capital Partners has confirmed the successful sale of NSI Industries, a leading manufacturer of electrical products, to Hubbell Incorporated for a substantial $3 billion. This transformative deal marks a pivotal moment for Sentinel, a private equity firm that specializes in investing in promising midmarket companies.

A Strategic Acquisition by Sentinel

Founded with a clear focus on niche markets, Sentinel Capital Partners acquired NSI Industries in November 2024. Under Sentinel's stewardship, NSI has undergone a remarkable transformation, exhibiting consistent sales growth driven by strong demand for its branded products. This growth positioned NSI as a category leader, with over 15,000 products including electrical fittings, connectors, and wire management solutions marketed under iconic brands such as Bridgeport, Polaris, and Tork.

Throughout its time with Sentinel, NSI has expanded its reach significantly, serving more than 2,000 distributors and contractors across North America. The company's impressive performance has been further buoyed by its engagement with high-growth sectors such as digital infrastructure and electrification, responding to the escalating needs of energy utilities and data centers.

Refocusing on Core Competencies

A notable step in NSI's journey was the strategic divestiture of its HVAC division in October 2025, which included well-known brands Duro Dyne and Supco. This sale, which fetched $550 million, allowed NSI to concentrate fully on its core competency as a leading manufacturer of branded electrical products.

John Van Sickle, a Sentinel partner, praised the collaborative effort with NSI's talented team: “We had the privilege of working alongside the dedicated professionals at NSI. This partnership was key to transforming NSI into a specialized leader in the electrical component sector, realizing the full value of our collective efforts.”

In a statement, NSI CEO Mike Pruss expressed gratitude towards Sentinel for their guidance during the transformation, indicating optimism about future growth opportunities as part of the Hubbell family of businesses.

The Legacy of Sentinel Capital Partners

With an impressive track record in electrical manufacturing and distribution, Sentinel Capital Partners has a history of investing in companies that thrive within complex market conditions. Noteworthy investments include ECM Industries and Power Products, alongside other specialized firms in industrial manufacturing.

With more than $11.2 billion in capital raised since its inception in 1995, Sentinel continues to excel in delivering operational resources and strategic advice to its portfolio companies, ensuring they navigate market challenges successfully.

About the New Chapter with Hubbell Incorporated

Hubbell Incorporated, headquartered in Shelton, Connecticut, is renowned for its utility and electrical solutions designed to keep critical infrastructure operational and efficient. With revenues surpassing $5.8 billion in 2025, the acquisition of NSI industries enhances Hubbell’s portfolio and capabilities.

Through this transaction, NSI is poised for significant growth opportunities, further solidifying its position in the market as a premier manufacturer in the electrical products sector.

This sale symbolizes a successful chapter not just for Sentinel Capital Partners but also for the broader electrical manufacturing landscape, showcasing how strategic partnerships and focused business models can lead to unprecedented growth and success. As NSI Industries transitions into its new ownership, both companies are positioned strategically for future advancements in the electrification and infrastructure markets.