The Ombudsman Association (OA) is a membership body for ombudsman schemes and other complaint handling bodies. Our criteria and standards are recognised as industry best practice. The OA was established in 1993 and includes as members all public and private sector Ombudsman schemes and major complaint handling bodies in the United Kingdom, Ireland, the British Crown Dependencies, and the British Overseas Territories. We're a not-for-profit company, limited by guarantee.