Security for the intelligent enterprise

Castle

Keep your information systems secure, online and compliant. Castelain are a specialist IT security and PKI consulting company, delivering pragmatic designs and authentication services.

Services highlights

Castelain are transaction security experts. We know how to design and implement elegant, usable PKI and authentication solutions. Our clients are some of the nation's largest companies and government departments. 

  • Learn more about Castelain and what our customers have to say about us
  • Learn about our PKI, architecture, security consulting and related services
  • Learn what Australia's tax agents already know. Check out our own secure, user friendly, two factor authentication, Secure Internet Portal product

    • Interested in AUSkey?

AUSkey is the Castelain designed credential that Australian businesses use to authenticate to Australian government. Launched in May 2010, it already has over 300,000 users and growing. Read more about our experience with AUSkey.