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Legrand Acquisition Highlights AI-Driven Growth in Data Centre Sector

lite News Desk 2 min read

At a glance

  • Legrand acquired TES Group, based in Northern Ireland
  • TES Group’s revenue rose 84% to £72 million since 2024
  • About half of TES Group’s revenue comes from data centres

Growing demand for data centre infrastructure, driven by AI and digital services, has led to increased activity in the sector, as seen in Legrand’s recent acquisition of TES Group in Northern Ireland.

TES Group, headquartered in Cookstown, Northern Ireland, was acquired by the French industrial company Legrand. The company operates two main divisions: one focuses on designing and manufacturing low-voltage power distribution equipment for data centres, while the other, TES Water, delivers engineering and automation services to utility firms in the UK and Ireland.

TES Group expanded its operations by opening a 300,000 square foot power data centre campus in Ballykelly, County Derry. This facility was established to address rising global demand for the company’s products, particularly in the data centre sector.

During the period of investment by Foresight Group starting in 2024, TES Group’s revenue increased by 84%, reaching £72 million. The company’s workforce also grew, with around 300 employees now based in Cookstown and Derry.

What the numbers show

  • TES Group’s revenue reached £72 million after 84% growth since 2024
  • TES Group employs about 300 people across two locations
  • Data centres contributed 26% of Legrand’s revenue in 2025

Approximately 50% of TES Group’s current revenue is generated from the data centre market. This reflects the company’s focus on providing equipment and solutions for this rapidly expanding sector.

Legrand reported that data centres made up 26% of its total revenue in 2025. The company stated that it expects the data centre segment to continue growing as demand for infrastructure and services increases.

Following the acquisition, TES Group will maintain its existing operations in Cookstown and Derry. The company stated that it will continue to serve both the data centre and utility sectors from these locations.

The acquisition of TES Group by Legrand illustrates ongoing changes in the data centre industry, with companies expanding capabilities to meet global demand for digital infrastructure and AI-driven services.

* This article is based on publicly available information at the time of writing.

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