HTB Yond

About HTB Yond

HTB Yond, founded in 2015 by Inho Ryu and Lee Geon-goo, is a Seoul-based developer of an IoT-based residential integration platform. The company launched its flagship product, 'ByB' (formerly 'BYEBY'), in 2019 to provide a unified housing solution. The ByB mobile application, available for Android and iOS, integrates smart home features with community and lifestyle services. It digitizes and automates tasks for both residents and management offices.

The platform's core services include smart home controls for lighting and heating, automatic access to common entrances, elevator calls, visitor parking registration, and electric vehicle charging. Community functions encompass facility reservations, real-time congestion status, announcements, complaint processing, and electronic voting. The app also facilitates connections with local businesses to offer services such as maintenance, cleaning, health management, and cultural experiences. By consolidating fragmented services into a single interface, HTB Yond aims to enhance convenience and create a comprehensive residential ecosystem.

The company's business model targets both new and existing apartment complexes, partnering with major construction companies like Hyundai E&C, IS Dongseo, and POSCO E&C, which have adopted ByB as a standard platform. Revenue is generated through the implementation of its proprietary space operating platform, BMX, which uses virtualization and cloud technology to manage a building's network solutions. HTB Yond has secured significant funding, including a Series B round of approximately $5 million (KRW 7 billion), to advance its data analytics capabilities and expand its IoT infrastructure. As of mid-2025, the ByB platform served over 500 apartment complexes, covering 310,000 households and 640,000 users.