Nicholls Colton Group Ltd.

Based in Leicester, UK, and founded in 1965 by John Colton and Roy Nicholls, Nicholls Colton Group Ltd. offers engineering testing and consultancy services to the construction sector. The company is currently being led by its CEO, Ian Elliot, and chairman, Alex Warwick, who both attained ownership status from the founders in 2005. In 2008, the company opened its environmental testing laboratory.

In 2017, the group established a Southern Regional office to support all business divisions and specialize in subsidence and drainage investigations. The company gradually further expanded with the addition of environmental monitoring services to its portfolio and has continually widened its testing offering, including asbestos analysis. Most recently, surveying and drainage investigations and consultancy have been added to the scope of services. In February 2021, Nicholls Colton Group Ltd.

was acquired by Construction Testing Solutions Limited. Nicholls Colton Group Ltd. 's various services include asbestos investigation services, bridge inspections, building infrastructure inspections, contaminated land and environmental monitoring, ground investigations, roads and highways services, lab testing services, in-situ tests, infrastructure and building construction and maintenance survey solutions, and contaminated land and waste work advisory services. The company generates revenue by providing specialist engineering & environmental data, in the field and in the laboratory, to the UK construction industry.

Following the acquisition by Construction Testing Solutions Limited (CTS) in February 2021, Nicholls Colton Group Ltd. plans to expand CTS' existing capabilities by integrating its services with CTS such as the addition of its in-house chemistry testing capabilities.