COS is Australia's Largest Family Owned and Operated Office Products Supplier

Inspiring Productivity for Every Room in your Office

COS is Australia’s largest family-owned and operated workplace and education supplies business, led by second-generation sisters, Co-CEOs Belinda and Amie Lyone. Over the past 45 years, we have grown from a small family venture to a national operation with over 700 staff and warehouses in every state and territory. Every day, we deliver thousands of products to workplaces, schools, and hospitals across Australia, helping to keep them healthy, safe, and productive. We have invested heavily in creating a nationwide presence, with an extensive network of sales offices, warehouses, and distribution centres across Australia. Each branch is tailored to local requirements and delivers a local service experience. With thousands of products to choose from for every room in your office, our all-in-one supply solution makes it easier for you to access what you need for your business.