Dream Security is an information-security specialist centered on public key infrastructure (PKI) technology, providing encryption, authentication, digital signature, and biometric authentication solutions.
The company supplies mobile security platforms, simple authentication, and digital signature services to government agencies, financial institutions, and general enterprises, and holds 14 consolidated subsidiaries including Korea Rental, Digicap, and SeedCore.
Structurally, the vast majority of revenue comes from rental subsidiary Korea Rental; last year, rental accounted for 83.55% of consolidated revenue while the solutions segment made up only 6.22%.
Korea Rental leases office equipment, measuring instruments, and construction machinery, a business distinct in character from the core security and authentication solutions business.
In contrast, the parent company's standalone revenue has stagnated for years, at KRW 30.2 billion in 2022, KRW 30.2 billion in 2023, and KRW 30.4 billion in 2024. In the first quarter of 2026, expanded supply of security equipment and solutions to the defense sector contributed to consolidated revenue growth.
The customer base spans public, financial, telecommunications, and private sectors, and the company holds a broad authentication technology portfolio spanning PKI, FIDO biometrics, and blockchain-based decentralized identity (DID).
More recently, it has introduced a 'quantum security full-stack' portfolio that integrates post-quantum cryptography (PQC) into its existing PKI, TLS, and database encryption product lines, attempting to expand its business scope.