Level 7, 225 Clarence Street, Sydney NSW 2000 Australia 1300 668 685 | service@citysystems.com.au
  • Better IT Support
    Better Service, Better Value
  • Managed IT Support
    is our business
  • Expert support
    for your IT environment

Welcome to City Systems

City Systems is a Sydney based IT Support and Services Company established for thirteen years servicing Australian and International organisations.

We have a diverse client base, ranging from legal firms, financial services, technology, insurance, manufacturing and helicopter rescue services to Not-for-profit organisations.

As managed IT and Microsoft Cloud solutions specialists we have solutions to suit all business sizes, needs and budgets.

Our People

Our technicians undergo continual training to keep them updated with the latest technologies and are selected to have the necessary interpersonal skills to communicate with people at all levels of technical understanding.


With depth and breadth of experience covering a diverse range of industries, we can ensure you have reliable IT support for all of your IT needs.

Flexible Service

Each client has a unique set of requirements. Our flexible contracts with no tie in periods allow us to customise them to your needs, giving you more choice and optimising efficiency.

Our Clients

Our client base is also highly diversified, ranging from International clients with offices across Australia to local clients solely based in Sydney.

Personal Service

We believe that our size supports our flexibility, large enough to deal with any crisis, but small enough to offer a personal service.

Service Quality

We aim to provide the highest customer service to all our clients regardless of their size and industry. Our goal is to build long term relationships based on trust, a testament to this is our client retention rate averaging 5 years.


How can we help?


Whether you are a small growing organization, looking to upgrade and expand your systems or a large blue chip looking for staff coverage we can provide you with the solutions and IT Support you need.
From deciding whether a Cloud solution is right for your organisation to migration and designing a Cloud solution, our technical specialists can help you make the right decisions.
Managed IT services from City Systems allows you to free up vital management time and company resources, enabling you to focus on your core strengths.
Whether you're concerned about securing your data, moving to new premises or are considering upgrading your systems, we can help you.

Superior customer service for all our clients, regardless of their size and industry, is our priority.

What we do

Whether you want to consolidate your existing servers, virtualise your application delivery, improve reliability of your IT infrastructure or simply develop effective DR solution, we can help you.

Whatever you're looking for, we have the IT support solution for you!

  • Testimonial #1

    City Systems has been a trusted supplier of ours for over 10 years, during that time we have found them to be efficient, reliable and consistent. We have 80 employees and operate offices throughout South East Asia, their engineers are quick to respond to our calls and their great advice…

    MF, Legal Firm
    Read more
  • Testimonial #3

    City Systems are currently engaged as our IT providers and the service that we have been receiving is ideal for our business. We are a residential construction firm within Sydney CBD employing approximately 50 staff and City Systems have been able to manage all of our IT requirements. They are…

    RD, Construction Firm
    Read more
  • Testimonial #2

    Dear Sri, Please find my answers to your questions below in CAPS. I can highly recommend City Systems and their Principal, Mr Sez Erbag. They have supported our business for over 6 years and during that time I have felt nothing but complete trust and confidence in their work. Please…

    NL, Educational
    Read more