Glostrext Berhad, an investment holding company, provides geotechnical instrumentation services in Singapore, Malaysia, and Cambodia. It offers piling, structural, and geotechnical related services, including instrumentation, testing, and monitoring services to construction projects, as well as completed buildings and infrastructures. The company also provides pile instrumentation and static load test services, and structural and ground instrumentation and monitoring services to construction projects. It serves piling and construction companies, high-rise building owners and management offices, and individual customers. The company was incorporated in 1992 and is headquartered in Shah Alam, Malaysia.