CTS is one of the UK's leading providers of construction testing, inspection, consultancy and compliance services. Working across infrastructure, commercial, residential, rail, highways, utilities and environmental projects, we support clients throughout the entire project lifecycle with trusted technical expertise and industry-leading service.

Our nationwide network of UKAS-accredited laboratories delivers a comprehensive range of materials testing services, including soils, aggregates, concrete, bituminous materials and chemical analysis, helping clients ensure quality, compliance and performance at every stage of their projects.

Supported by highly skilled technicians, engineers and consultants, we provide both laboratory and on-site testing, sampling, inspection and investigation services across the UK. With a strong focus on customer service, technical excellence and innovation, we help our clients deliver safer, smarter and more sustainable construction projects.