Datum, which was founded in 1999 by its current owner and CEO Rory O'Rourke, provides monitoring services to the mining, rail and construction sectors worldwide from its offices in Manchester and London.

"DSI is an impressive business with a history of excellence built on reputation and as a pivotal component of its Global Services Division, will enable Datum to expand and grow to meet the vast opportunities presented to the company by HS2 and other major projects. Together DSI and Datum are well positioned to deliver innovation and technology to meet the challenges set by the customers of each company across the world," said O'Rourke.

Speaking of the acquisition Sanjay Razdan, president of Global Services DYWIDAG-Systems International, said: "We welcome the Datum team into DYWIDAG-Systems International. Datum's products and services, including Infrastructural Health Monitoring, are added to our portfolio of Global Services to enhance safety, savings and sustainability of our customers."

Matti Kuivalainen, CEO DYWIDAG-Systems International added: "The ageing infrastructure presents a huge growth opportunity for DYWIDAG-Systems International and with the acquisition of Datum we enter to infrastructure health monitoring segment of it. This is strategically a very important milestone for us."