Our Team
Who we are
At DMK we pride ourselves on delivering personalised and professional services to achieve your goals and objectives.
Our growing team of local professionals are hand-picked to reflect the culture and values of both our staff and clients. We are encouraged and committed to build upon our knowledge via regular professional development programs and training so that we can provide you with the best service possible.
We take pride in being active members of our community, with many of us participating in local sporting clubs and community groups. One of our key values as a team is to financially support local organisations, and donations collected from our ‘Casual Friday’ dress code allows us to make a donation to a local organisation each year.
Get to know us better by reading our staff profiles below. Send us an email to find out more.
How can we help you? Contact us at DMK to chat with one of our team.
Stephen Costley
Principal, Senior Accountant & Registered Company Auditor (FCA, CPA)
Stephen acquired DMK in 2003 and merged the practice with another accounting firm in Alexandra. Stephen has a Bachelor of Commerce from the University of Western Australia and holds a Certified Practising Accountant (CPA) and Chartered Accountants Australia & New Zealand (CA ANZ) qualifications. Stephen has previously worked as an accountant in Perth, London and the Sunraysia region in north-western Victoria. He has been a managing director of regional accounting firms since 1982 focusing on Agriculture and business development.
Stephen was born in New Zealand and moved to Perth with his family. He now spends his time between Geelong and Alexandra. Stephen is an active member of the Alexandra Rotary Club and enjoys spending his free time exercising, walking his dog, travelling, fishing and cooking.
John Sadler
Senior Financial Adviser
Tom Dunell
Senior Accountant & SMSF Specialist (CPA)
Tom started with DMK as a graduate accountant in 2005. He grew up in Mt Beauty and moved to Alexandra after completing a Bachelor of Commerce (Accounting) at LaTrobe University. Whilst working at DMK, Tom gained his CPA certification. Tom left Alexandra to travel back in 2012, returned to DMK briefly in 2016, and is back at DMK in 2021 after working for accounting firms in Hobart and Melbourne.
Outside of work, Tom enjoys the outdoors, camping, family time and is also a CFA member. Tom has 15 years accounting experience and specialises in SMSF, small business and personal tax.
Nicole Simpson
Bookkeeper
Nicole started with DMK in 2022 as a bookkeeper. She supports senior accounts with bookkeeping for assurance reviews and individual clients. Nicole has had roles providing bookkeeping for small businesses, before deciding to expand her knowledge and experience by joining DMK. Prior to becoming a bookkeeper Nicole worked in childcare and at the Alexandra Kindergarten as an educator. Before moving to Alexandra in 2016 she spent 9 years in Kalgoorlie with her husband. Nicole grew up in Chirnside Park and for a short period has lived in the Alexandra area when she was growing up.
Nicole enjoys reading, following the football, travelling, and spending time with her family.
