The Institute of Internal Auditors (IIA) is the leading body representing internal auditors. Globally, the Institute represents more than 160,000 members in 165 countries.

The IIA’s activities include the following:

- Providing standards, guidance and information on internal auditing best practices

- Providing professional development activities and certification

- Bringing together internal auditors to share information and experiences in internal auditing

- Upholding standards by undertaking quality assurance services

- Advocating, promoting and publicising the profession to industry professionals, universities