Nib Holdings Limited is a health insurance company that offers its services to residents, international visitors, and students in Australia, New Zealand, and other countries. The company operates through four segments, namely Australian Residents Health Insurance, New Zealand Residents Health Insurance, International (Inbound) Health Insurance, and nib Options. It provides affordable and flexible health insurance plans to its customers. The company's focus on providing quality services to its customers has helped it establish a strong position in the market.