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Private company

Dialight

Logo: dialight.com3

Dialight plc is a British-based electronics business specialising in light-emitting diode lighting for hazardous locations. It is headquartered in London and operates in North America, the United Kingdom, mainland Europe, Australia, Asia and South America. It is listed on the London Stock Exchange and is a constituent of the FTSE SmallCap, and FTSE techMARK Focus indices.2 It was founded in 1938.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1938Founded1

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Dialight plc is a British-based electronics business specialising in light-emitting diode lighting for hazardous locations. It is headquartered in London and operates in North America, the United Kingdom, mainland Europe, Australia, Asia and South America. It is listed on the London Stock Exchange and is a constituent of the FTSE SmallCap, and FTSE techMARK Focus indices.2

The story

The business was founded in 1938 and became part of the Dutch company Philips in 1963. In 1990, through a management buyout, it became part of Roxboro Group, which was first listed on the London Stock Exchange in 1993. In 2005, it was renamed Dialight.

In 2012, Dialight announced that they would expand their manufacturing capabilities in Malaysia.

In 2023, it was revealed that Dialight had been involved in prolonged legal proceedings with its former manufacturing partner, Sanmina Corporation, regarding the termination of their manufacturing services agreement. Dialight filed the lawsuit seeking compensation for what it alleged were Sanmina’s fraudulent actions, gross negligence, and breaches of their contract.

In 2024, Dialight's claims of fraudulent inducement against its former contractor were allowed to proceed to trial after a New York court denied Sanmina's attempts to dismiss these allegations.

From Wikipedia’s article on Dialight, shared under CC BY-SA 4.0.4

Products and brands

The company has three divisions:

Signals and Illumination (traffic and rail signals as well as obstruction lights)

Solid state lights (low-energy lighting technology)

Optoelectronics

From Wikipedia’s article on Dialight, shared under CC BY-SA 4.0.4

Timeline

  1. 1938Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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    Company websiteDialight logo
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