KICA (한국정보인증) is a South Korean digital trust services company offering electronic certification, electronic contracts, and electronic certificate (document) services. The company operates under a paperless mission, replacing paper-based workflows with digital alternatives. **Core Service Areas:** **인증 서비스 (Authentication/Certification Services):** Provides non-face-to-face joint (공동) digital certificates, enabling users to obtain and use digital credentials remotely without physical presence. **전자계약 서비스 (Electronic Contract Services):** Offers an electronic contract platform branded as "싸인오케이 (SignOK)," which digitizes the full lifecycle of contract workflows — from issuance and signing to storage. It has been adopted by platforms such as rental car service "찜카" for end-to-end contract digitization. **증명 서비스 (Electronic Certificate/Document Services):** Provides electronic certificates and official document services (branded as "메드서티 / MedCerti"), enabling digital issuance and delivery of official documents. **SSL Certificates:** Issues SSL certificates as part of its public key infrastructure (PKI) and trust services portfolio. KICA reports that its services save an average of 20 million sheets of paper per year, resulting in approximately 100 tons of reduced carbon emissions, preservation of 170 trees, and savings of 250,000 liters of water annually. The company holds an AA credit rating, reports total assets of approximately 232.6 billion KRW, and annual revenue of approximately 81 billion KRW, with 222 employees.