Clifton Associates employs the industry’s leaders in environmental, geotechnical, civil, geological, water resources, and transportation engineering. We support our staff with modern laboratory and computing facilities.

Over the years, we have established roots in the communities where we live and work. Our specialized expertise and positive working relationships with specialist consultants, regulatory bodies, and local subcontractors allow us to expedite processes, identify concerns early, and respond to your needs quickly.


  • Paul van der Raadt


  • Wayne Clifton

    Chief Executive Officer

  • Dave Kent

    Chief Engineer

  • Leon Botham

    Vice President

  • Craig Clifton

    Vice President

  • Jason Gasmo

    Vice President

  • Mark Wittrup

    Vice President