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L Squared Capital Partners Acquires Functional Devices

Functional Devices, Inc. acquired by L Squared Capital Partners

AcquisitionManufacturingUS

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Acquired

Functional Devices, Inc.

United StatesManufacturing

Undisclosed amount

February 25, 2026

L Squared Capital Partners logo
Acquirer

L Squared Capital Partners

L Squared Capital Partners has acquired Functional Devices, Inc. for an undisclosed amount, marking a significant corporate acquisition in the building automation sector. This transaction sees L Squared Capital Partners buying the established electronic device manufacturer, rather than providing a funding round, solidifying its investment in a key industrial segment.

Functional Devices, Inc., proudly based in the United States since 1969, has built a strong reputation for designing and manufacturing high-quality electronic devices. The company's mission is to enhance lives in buildings and beyond by delivering reliable, high-performance products for the building automation industry. Its extensive product lineup includes RIB® (Relay in a Box®) relays, current sensors, power supplies, transformers, and lighting controls. Functional Devices is particularly noted for its rigorous testing, resulting in an industry-leading reliability rate with fewer than 1 in 16,000 products experiencing a field failure, complemented by a newly launched 10-year warranty, reinforcing its commitment to quality and longevity.

This acquisition is strategically aimed at leveraging Functional Devices' proven market position, robust product portfolio, and operational excellence. L Squared Capital Partners, known for investing in leading growth companies, sees significant value in Functional Devices' long-standing commitment to quality and its critical role in the building automation ecosystem. The synergy between L Squared's strategic capital and Functional Devices' deep industry expertise and reliable product offerings is expected to drive continued growth, foster innovation, and potentially expand market reach for its high-performance solutions.

The combined entity is poised to further strengthen its presence in the building automation market. By building upon Functional Devices' legacy of unmatched reliability and innovation with the added resources and strategic guidance from L Squared Capital Partners, the acquisition is anticipated to support ongoing product development, enhance operational efficiencies, and broaden service offerings for customers seeking dependable electronic solutions globally.

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