Graydon started Greenstone Recruitment in early 2006. He grew up on a beef and sheep farm in South Africa. He and his family moved to New Zealand in 2001. Graydon has an Honours degree in Economics and 10 years of banking experience: 3 years as a Senior Rural Banker with the Bank of New Zealand and 7 years of Investment Banking experience in South Africa. He is a keen sportsman and has completed multiple Ultra-marathons and marathons. Graydon is also a licenced immigration adviser and has served on the Licensed Immigration Advisers Reference Group and been a finalist in the NZAMI Immigration Adviser/Lawyer of the year awards.