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A. Reyrolle & Company

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A. Reyrolle & Company was a British engineering company associated with electrical switchgear and power-system equipment.

Last updated November 4, 2026

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Overview

A. Reyrolle & Company was a British electrical-engineering business associated with switchgear, power-distribution equipment and related power-system engineering. It is generally understood to have been established by Alphonse Reyrolle in the late nineteenth century, with manufacturing and engineering activities based in north-east England. Its equipment served electricity-generation, transmission and industrial-power applications, particularly in medium- and high-voltage switchgear. The business later went through changes in ownership, corporate structure and brand usage, and available references do not always distinguish clearly between the original legal company, successor businesses and the continuing Reyrolle name. Its present status as the original independent company is therefore not confirmed.

History

A. Reyrolle & Company was an important name in British electrical engineering, with origins generally traced to a business established by Alphonse Reyrolle in the late nineteenth century. The company developed in north-east England and built manufacturing and engineering capabilities for the power sector, especially switchgear and other equipment used in generation, transmission and distribution systems. As the British electricity industry and major engineering groups consolidated, the Reyrolle business underwent changes in ownership and corporate organisation. The original company name also became intertwined with successor businesses and product-brand usage. Publicly available material is not sufficient to establish every later transaction, legal entity or operating status with confidence, so this account limits itself to the confirmed industrial role and broad historical development.

  • 1886

    Founding of the company

    [1]

    A. Reyrolle & Company is generally regarded as having been founded in Britain by Alphonse Reyrolle, beginning its electrical engineering business.

Products and positioning

Supplier of industrial electrical equipment and engineering technology for power systems

  • Switchgear

    Switchgear was the company’s best-known product area, used to control, isolate and protect electrical circuits in industrial and power-distribution applications. Public references commonly associate the Reyrolle name with medium- and high-voltage switchgear.

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