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About SESL Australia

Simon Leake

Meet Simon Leake

Simon, our Director of Science here at SESL Australia founded the business in 1984. As Director of Science, Simon enjoys mentoring the SESL team in the objective application of soil science to solve client problems. Simon is expert in soil/vegetation rehabilitation such as in mine sites and urban renewal projects. He is a Certified Practicing Soil Scientist and expert witness in legal matters related to soil, waste and composting sciences. 

Simon has been published multiple times via the CSIRO including developing, “Soils for Landscape Development”, a practical guide for future development of landscape soil technology and the specification of soil and growing media. Simon is a frequent lecturer to various universities including University of Technology Sydney, University of NSW, University of Sydney, and TAFE Ryde School of Horticulture and Hawkesbury Campus as well as many conferences and professional organisations, giving lectures on urban soil science, turf rootzone soils, tree rootzone management, pedology, soil chemistry, soil management and modification, amelioration, and plant nutrition in Australia and overseas. 

Simon also conducts lectures to hundreds of interest groups, seminars, conferences, TV and radio appearances. Simon is frequently called upon to give advice in radio and television programs having appeared on “Burkes Backyard” several times, radio segments for the ABC more.

SESL Australia

SESL Australia is a leading provider of soil, environmental, and agricultural science services. Since our founding in 1984, we’ve built a reputation for delivering independent, reliable, and innovative solutions that help our clients make informed decisions about land, water, and natural resources.

Our team of scientists, agronomists, and technical specialists work across industries including agriculture, horticulture, mining, construction, waste management, and environmental consulting. We pride ourselves on combining rigorous scientific expertise with practical, real-world insights.

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At SESL Australia, we believe that healthy soil and sustainable resource management are the foundation of a thriving future. That’s why we partner with government, industry, and community organisations to provide:

  • Comprehensive soil and water testing

  • Environmental assessments and monitoring

  • Waste and recovered materials analysis

  • Agricultural and horticultural advisory services

  • Research and development

  • Technical training​

With over four decades of experience, SESL Australia continues to support projects of every scale, from small local initiatives to major national and international developments.

 

Our commitment is simple: to provide accurate science, independent advice, and sustainable outcomes that benefit both people and the environment.

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