Ademus Business Solutions

The edge to dare

Ademus Business Solutions is the place to be if you are looking for a progressive accountancy practice which challenges the business and tax status quo.

Embracing innovation

Our daring and tech-savvy approach invites you to connect with us in a modern working environment.

Ademus have implemented new technologies, online systems, cloud software and direct communications so you can be across your business matters, bookkeeping, tax or accounting whenever you need and choose to be.

This transparent Ademus-client relationship means you and your business can feel supported whether you are in Sydney or Singapore.

Up for a challenge

Contemporary businesses require dynamic solutions. At Ademus we collaborate with you and will challenge you with the daring questions.

Ademus will work with you to uncover any core issues in your business and provide knowledge and experienced advice to grow a thriving business with sound financial and strategic processes.

The innovative thinkers at Ademus are able to provide uniquely innovative and integrative strategies and solutions for your business to be sustainable and successful.

The meaning of Ademus 

The word ‘Ademus’ is etymologically connected to the latin words audeo and audemus meaning ‘we dare’ and ‘at the ready’. At Ademus we value ourselves on being professional, experienced, confident and reliable. We are also daring and brave – a modern and innovative firm bringing sustainable and smart solutions for our clients. We really do think outside the box and work with you. With expert perspective and experience, Ademus works with you to attain your desired and sometimes daring outcomes.

What we do

Professional accounting, tax, bookkeeping and business services, strategies and solutions

Our story

Ademus Business Solutions represents a combined vision of a future direction for progressive accountancy and the experience of empowering clients to develop sound financial and business sustainability.

The Ademus identity has been forged by years of hard work, by listening to and understanding the needs of clients, by looking for modern and innovative ways to better deliver accounting, taxation, bookkeeping, financial and business advisory to a diverse range of clients who want flexibility, accessibility, professional service and experienced advice alongside sustainable solutions.

At Ademus we dare to be different and we invite you to join us.

Ademus Business Solutions is based in Sydney’s Inner West. Ademus offers full service professional accounting, bookkeeping, business and tax advice and strategies.

Our people

Lina De Marco is the Principal at Ademus Business Solutions. Supported by professional accountants, bookkeepers, tax experts and finance brokers you can be assured of confident and reliable partners for all matters regarding your business and personal accounting.

lina de marco ademus business solutions

Lina De Marco

Principal, Ademus Business Solutions
From cadet to empowered mentor, Lina’s passions have inspired her work and her career

Born and educated in Sydney, at a young age Lina secured a cadetship with Cooper & Lybrand while she completed her Bachelor of Business from the University of Technology Sydney (UTS).

Consciously deciding to then work for smaller accounting firms, Lina developed a passion for small business and empowering women in financial literacy and business management. She has always been an advocate for gender equality in the workplace.

In 2005, Lina established her own firm and for many years was also an educator at TAFE Digital imparting her accounting, business and management skills. Lina then became Senior Partner at a private firm before establishing Ademus Business Solutions.

Admitted as a member of Chartered Accountants (CA) in 2003, Lina is also an appointed Justice of the Peace, registered Tax Agent and ASIC approved SMSF auditor. She is also currently President of the Self-managed Super Fund Auditors Association of Australia and a panel member of Inspired by Women. 

“Lina is a ripper accountant and expert tax navigator”

Inspired by Women

Empowering women
Ademus is a proud supporter and panel member of Inspired by Women

Inspired by Women provides women with the knowledge, guidance and support of a trusted community to help them be financially independent and to secure their future.

Visit the Inspired by Women website

Innovative and experienced

Professional accounting and business services, strategies and solutions

Tax Agent 26059555

Liability limited by a scheme approved under Professional Standards Legislation


Inspired by Women supporter

Proud supporter of Inspired by Women


Ademus Business Solutions

A progressive accountancy practice offering professional accounting, tax, bookkeeping and business services, strategies and solutions

Contact Ademus

All enquiries welcome: +61 2 7226 2346
Message Ademus via email

Local Service Area

Ademus Business Solutions is based in Sydney’s Inner West. Local areas are: Abbotsford, Annandale, Ashbury, Ashfield, Balmain, Belfield, Burwood, Canterbury, Concord, Croydon, Croydon Park, Enfield, Five Dock, Glebe, Haberfield, Leichhardt, Lewisham, Lilyfield, Petersham, Pyrmont, Rozelle, Stanmore, Strathfield, Summer Hill

Ademus Business Solutions