Arthur is a fifth-generation member of the Inglis family, involved in the Company, and has worked in various roles over more than five decades. His responsibilities include strategic planning, compliance, WH & S and overseas marketing to the Middle East, Korea, Philippines, India and other emerging markets. William Inglis and Son Limited, first established in 1867, is the oldest and largest Bloodstock agency (selling thoroughbred horses for racing and breeding) in the Southern hemisphere.​

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Arthur co-founded and is a Director of Pixevety, which provides media management technology to schools. Its exclusive consent-driven media gallery platform and mobile application has been designed with privacy at its core, helping schools to capture and protect the images of children and be a trusted digital guardian. Winner of the 2025 British Data Awards, Pixevety is a mutti-award-winning ISO27001 platform and a global leader in Al-driven safeguarding compliance, trusted by over 500 schools across Australia, Asia, United States, Canada and the UK.

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Arthur has been appointed a Member of the Board of the Ingham Institute for Applied Medical Research the only such institute in the South West Sydney Local Health District.