Meet Our Team

Steve Tremellen
B Bus (Accy) FIPA CTA

Steve began his accounting career as a cadet accountant with a Brisbane firm of chartered accountants in 1975 concurrently attending the Queensland University of Technology studying his accounting degree.

Over a period of some 40 years, Steve has specialised in the area of advice to small business including legal structures, finance of working capital, acquisition of property, plant and equipment, business taxation, superannuation and management advice and assistance.

Steve loves to be involved with his clients’ business and proudly injects a level of enthusiasm and motivation into all client affairs.

Robert Thiess

Robert graduated from Central Queensland University in 2003, became a chartered accountant in 2005 and commenced with C&A Accountants in 2008 after 6 years experience in a chartered firm in Rockhampton.

Rob’s particular interests involve tax legislation and research, keeping up to date with these ever changing areas through ongoing training.  His specialities include the taxation of trusts, an area of considerable current public debate.

Robert’s seniority makes him an obvious choice to mentor the accounting staff and is an integral part of our inhouse staff training team.

Rita Gangemi
JP (Qual)

Rita joined the administration team of C&A Accountants in 1997 and was quickly promoted to the position of Office Manager in 1999.

Rita’s friendly and efficient communication with clients and staff makes her an indispensable member of the team.

In many respects Rita is the key communication focal point for our firm.

Alyssa Dunn
B Bus (Accy) CPA

Alyssa qualified as an accountant at the Queensland University of Technology in 2007 and commenced work with C&A Accountants in 2008.  Alyssa completed her CPA qualifications in 2012.


Alyssa is a Stanthorpe local, raised on a fruit property.  She works with the accounting team servicing a wide range of clients.

Caitlin Anderson-Coombes
B Com (Accy)

As a local girl, Caitlin came to our office for high school work experience in 2009 and we welcomed her back in August, 2012 as a trainee accountant.


Caitlin has completed her external studies through the University of Southern Queensland and celebrated her graduation in September 2015.

Caitlin manages our Superannuation Fund processing along with bookkeeping, financial statement, BAS and income tax return preparation.

Leonie Hurtz
B Com (Accy) B Agribus Qld Dip FS (FP)

Leonie Hurtz commenced work with C&A Accountants in 2004 and qualified as an Accountant at the University of Southern Queensland in 2006.  

Leonie is a senior accountant and manages a group of professional and small business clients.

Ninette Cosmo
JP/ Com Declarations

Ninette, despite her tender age, is the longest serving staff member at C&A Accountants – she has even been here longer than Steve!

Although she has done almost everything there is to do at C&A Accountants, her current specialities relate to income tax preparation and Centrelink requirements.