
Environment Management System ISO 14001:2015

ISO 9001:2015 Quality Certification for security services, security systems, operational systems department, and cleaning services.

Metthier has received the Capability Maturity Model Integration for Development (CMMI) V2.0 Maturity Level 3 certification, which focuses on software development and enhances operational efficiency at every step, in accordance with global standards.

Cleaning services certified under the BS EN 13549:2001 standard, ensuring quality and professionalism in every area we maintain.

Enhancing workplace safety standards with ISO 45001:2018 to protect our personnel and support sustainable operations.

Environmentally friendly cleaning services in accordance with the TGL-78-13 standard, ensuring clean, safe, and sustainable spaces.

Certified under Thai SMEs Standard No. 21-2561 (2018), reflecting quality management and service standards in line with Thailand’s SME benchmark.
