Central Alliance

Central Alliance is a ground engineering technical services and data delivery business based in Wakefield. Its work spans the built and natural environment, with a strong emphasis on investigating ground conditions, collecting dependable site information and turning that information into practical project insight.

Its ground investigation team provides integrated services covering land drilling, exploratory holes, in-situ testing, soil and rock logging, laboratory testing, factual reporting and interpretative advice. The company operates a varied fleet including rotary, cable percussion, dynamic sampling and cone penetration testing rigs, together with bespoke equipment for slopes, remote areas and restricted-access sites.

Beyond drilling, Central Alliance delivers survey and geomatics, geophysics, structural investigation, instrumentation and monitoring, remote sensing, GIS analysis and data visualisation. Its technical capabilities include groundwater monitoring, dewatering-related work, aerial and satellite surveys, muon tomography and technology-led investigation solutions. The business also works alongside RSK Group companies to provide wider geo-environmental and laboratory support.

Projects are supported across rail, highways, clean energy, water, mining, waste, utilities, environmental work, property and construction. That makes the service particularly relevant to infrastructure owners, contractors, developers and public-sector organisations seeking coordinated pre-construction information, specialist investigation or monitoring on technically demanding sites.