Estithmar Holding QPSC engages in the sale of foods, chemicals, security equipment, electrical material, building material, installation, maintenance service, contracting, and project management services. It operates through the following segment: Contracting, Specialized Contracting, Trading, Water Treatment and Related Maintenance, and Others. The Contracting segment focuses on construction activities. The Specialized Contracting segment includes mechanical, electrical and plumbing in addition to security systems. The Trading segment trades in food, chemical, electrical, security, and safety systems and building materials. The Water Treatment and Related Maintenance segment comprises of contracting for wellness and pools, water features and water treatment, and after sale maintenance and services. The Others segment represents the balances pertaining to the company. The company was founded in 1975 and is headquartered in Doha, Qatar.