Welcome to AhJoo Engineering Co., Ltd.

Established in 1984 as AhJoo Trading, we evolved through AhJoo Geo Engineering and Geoplus ENG, culminating in our re-establishment as AhJoo Engineering Co., Ltd. in 2016. This long-standing history forms the bedrock of our decades of extensive expertise in construction measurement management, geotechnical investigation, and testing—enabling us to deliver high-quality engineering services.

Beyond our core services, we have placed a strong focus on developing advanced and innovative technologies in recent years, including stratified radiation measurement systems and IoT-enabled smart measurement systems.

Across diverse fields—including safety inspection, on-site testing, and design—our operations are supported by highly specialized professionals and robust operational capabilities. Through continuous R&D and technological innovation, we are committed to being the most trusted and reliable partner for our clients.

Thank you

CEO, Won-Gon Lee

Vision

The Vision of AhJoo Engineering Co., Ltd.