As the world’s trusted infrastructure consulting firm, we understand both the urgency of the water challenges facing our society and our responsibility to respond in an impactful and enduring way.

Whether it’s delivering infrastructure that increases flood and coastal resilience, unlocking investment for flood risk management, developing the latest industry guidance on coastal modelling to help address the climate emergency or responding to a storm event — we bring the best minds together to solve our clients’ most complex challenges.


Our integrated offer covers everything from environmental planning studies, hazard mapping and detailed design to construction management, operations and maintenance:

  • Hydrological and hydraulic modelling – fluvial, pluvial, tidal and coastal
  • Flood risk mapping and visualization
  • Climate change adaptation and mitigation planning
  • Flood and coastal erosion risk management (FCERM) and appraisal
  • Coastal and river engineering
  • Sea level rise assessments and plans
  • Stormwater management
  • Flood risk management systems (levees and floodwalls)
  • Incident management and emergency planning
  • Emergency response and recovery
  • River restoration and bank stabilization
  • Geomorphology, river and wetland habitat creation and restoration
  • Client program, performance and portfolio management support
  • Project and contract management
  • Cost and carbon management — gathering, analyzing, monitoring and reporting
  • Aquatic and terrestrial specialist surveys
  • Urban planning

Combining our global expertise with local knowledge, we collaborate with federal and local authorities, environment agencies, rivers trusts, wildlife trusts and water companies to deliver schemes that empower communities, enhance water equity and build resilience.