MDDUS is a mutual defence organisation founded in 1902, offering expert medico-legal and dento-legal advice and professional indemnity to doctors, dentists, and other healthcare professionals across the UK. Their services include access to legal advice, assistance with claims, and indemnity cover. The target audience is healthcare professionals. MDDUS's unique selling proposition is its mutual structure, meaning it operates for the benefit of its members without shareholders, allowing it to focus on protecting members' interests in a cost-effective manner. This model ensures that benefits are discretionary and tailored to members' needs.