Specialising in intelligent, client-focussed solutions to environmental and climate change problems.


The crew of the Yellow Sub includes experienced technical specialists in:
  • Site investigation
  • Contaminated land
  • Geotechnics
  • Hydrogeology
  • Geology and geoconservation
  • Hydrology
  • Applied mathematics 
Our business is founded on the principle of collaboration. We can call upon a network of associates and partners across the globe to provide you with bespoke solutions from the very best practitioners, really adding value to your project.

Our Clients


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We're always keen to help

drop us a line and we'll be in touch soon.

UK: (+44) 02920 099 310