Diplomatic Language Services | 10,776 followers on LinkedIn. We make the world better when we understand each other. | Established in 1985, Diplomatic Language Services provides exceptional language training, translation, interpretation, and linguist testing to federal and state government, commercial and academic clients. We offer professional and experienced native-speaking instructors who provide exceptional proficiency-based foreign language training, specifically designed to meet our clients’ requirements. DLS offers training in over 85 languages.