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Led by owners Terry Dewing and Jeni Wilcock,

the Sullivan Dewing team work closely with clients to achieve the best possible financial outcome.

We believe that businesses are simply a tool to help individuals grow their wealth and achieve their financial goals. Our experience and expert knowledge in the latest tax regulations allow us to assess your overall financial position

—helping you build your business, reduce your tax and grow your wealth.

Our team will work closely with you year-round, so you can fund the lifestyle you desire, now and in the future. As accountants who understand the complexities of running a business, we take the time to understand your business and develop clever strategies that go beyond compliance.

We offer clients a wealth of resources, from seminars and networking events to the latest news and insights. Our close network of professional associates can also support you with financial planning, banking, bookkeeping, insurance and legal advice.

Terry Dewing

Terry Dewing


Terry is a Director and founder of Sullivan Dewing, with many years experience working with clients to build more profitable businesses, reduce tax and create personal wealth. He specialises in taxation advice, the application of Capital Gains Tax and Self-Managed Super Funds (SMSF). Terry's focus is on achieving the best outcome for his clients every time. His knowledge, skills and wisdom are essential to the success of our clients and the development of our team. He is a Chartered Accountant, Chartered Tax Adviser, CA SMSF Specialist, ASIC registered SMSF Auditor and completed his Diploma of Financial Planning. 

Terry enjoys surfing, skiing and stand up paddle boarding around the beautiful bays of Cronulla.

Jeni Wilcock

Jeni Wilcock


Jeni Wilcock is one of the dedicated, enthusiastic Directors of Sullivan Dewing. Jeni uses her passion, enthusiasm and common sense approach to help business owners and individuals achieve fabulous financial results. She specialises in breaking down the accounting jargon and producing clear and simple strategies to help businesses improve revenue, increase profit, manage cash flow and legally reduce tax. Her focus is on getting the business structure right, making sure the business is producing the right amount of profit, then getting the profit out of the business tax effectively, to create personal wealth.

Jeni is a CA, holding both an Accounting degree and Honors degree in International Business. She is a Chartered Tax Advisor, Tax Agent & ASIC Registered SMSF Auditor.  Jeni has completed her Diploma of Financial Planning.

Outside of work, Jeni enjoys netball, skiing and spending time with her energetic family.

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Heather Locker


Heather Locker is a Director at Sullivan Dewing with a vast knowledge of business, taxation and accounting. Heather works closely with her clients to ensure they are financial well organised and not paying anymore tax than is required. Heather has her CA SMSF Specialisation qualification and works closely with self managed superannuation clients to ensure their retirement funds comply with the complicated superannuation legislation.  In addition Heather has completed her Diploma of Financial Planning.

Heather enjoys an active life outside of work spending time with her children and husband.

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Jennifer Palmer


Jennifer Palmer is a Director at Sullivan Dewing, with experience as a business professional in a number of industries including professional services, finance, telecommunications, consumer healthcare and fast moving consumer goods. She is responsible for the development and implementation of growth strategies as well as the operational side of the business.

Outside of work Jennifer is actively involved playing hockey, walking her whippets and keeping up with her energetic family of boys!

Natalie Murphy

Natalie Murphy

Client Manager

Natalie Murphy is one of our wonderful Client Managers at Sullivan Dewing with extensive knowledge and expertise in taxation and accounting. Natalie enjoys building strong relationships with clients to ensure they become financially well organised, building profit, saving tax and creating personal wealth.

When not at work Natalie enjoys an active lifestyle and recently completed a half marathon. She loves spending time with her husband and gorgeous girls.

Gina Naumoska

Gina Naumoska

Client Manager

Gina Naumoska is a Client Manager at Sullivan Dewing, initially starting her career with KPMG Peat Marwick and now with over 20 years of experience in small business, taxation and superannuation. She is passionate about making a difference, ensuring all her clients are financially well organised, reaching their business and personal wealth goals. Gina specialises in Self Managed Super Funds establishing the structures required to comply with legislation.

Gina is a fun loving person who enjoys the great outdoors and spending time with family and friends.

Matt Bell

Matt Bell

Client Manager

Matt is a one of our Client Managers with extensive experience in taxation and accounting working with a wide range of clients. Matt enjoys working with clients to ensure they achieve the best financial outcome every time!

Matt is a rugby union tragic, heavily involved with the Southern Districts Rugby Club, managing and coaching.

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Janelle Boyling

SMSF Specialist Accountant

Janelle is our SMSF specialist accountant working on all facets of superannuation including the establishment and compliance of SMSFs. Janelle ensures our clients tick all the boxes when it comes to SMSF compliance.

When not at work Janelle’s ‘spare time’ is spent coordinating her three active children and enjoying time with friends.

Dana Wakim

Dana Wakim

Client Manager

Dana is one of our awesome chartered accountants. Among the many tasks Dana prepares financial accounts and income tax returns for individuals, trusts and companies. When it comes to software and digital technology Dana is our champion!

Outside of Sullivan Dewing Dana is a representative Oz Tag player and a regular at the gym who enjoys spending time with family and friends.

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Philippa Pearson

Client Manager

Philippa Pearson is one of our incredible Client Managers who enjoys breaking down the accounting jargon and making it simple for our clients! Philippa helps the team in a range of activities including preparation of financial accounts, income tax returns for individuals, companies and trusts. Outside of work Philippa enjoys fancy food, wine and fashion. She loves going on camper van adventures with her beautiful kids, husband and fur baby!

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Margaret Swift

Senior Accountant

Margaret Swift is one of our amazing senior accountants with over 20 years’ experience in public practice working in all facets of compliance and tax. Marg is a CPA and CA as well as a NSW Justice of the Peace and registered Tax Agent.

When not working Marg loves to travel, read, listen to music and hang out with her family and take her beautiful black Labrador for walks!

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Catriona Crawford

Client Services Manager

Catriona Crawford works across our administration and superannuation teams. Our go to person for all things administrative as well as assisting with the compliance and setting up of SMSFs. Outside of work Catriona likes to read and make travel plans.

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Nicola Kelly


Nicola Kelly is one of our fabulous accountants with experience in public practice as well as owning a business. Nic assists our Client Managers with the preparation of financial accounts and income tax returns. When not working Nic loves to garden and enjoy bush walks in the sunshine with her dog, Luna.

Gai Forest

Admin Team

Our awesome administration team assist every step of the way.

Pictured left to right; Gai Forest, Michelle Smith and Valerie Hunter.

Contact us to find out how we can help you build a better business and achieve the best financial outcome for you. We're located at 387 Port Hacking Rd, South Caringbah NSW 2229.

Drop by or call us on (02) 9526 1211 and one of our team will be happy to help.

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