Established in 1920 by Abdullah Hamad Al Zamil as a trading and services business in Bahrain, today, the Zamil Group Holding Company has operations in investments, real estate, trade and services, petrochemicals, offshore, building materials, and manufacturing. Its stakes in publicly listed companies include Sipchem, Zamil Industrial, and ADES Holding Company, which went public in October 2023. In February 2024, Zamil Plastic Industries Co. partnered with GROHE to establish a factory for sanitary products in Saudi Arabia. In the same month, the Public Investment Fund acquired a 40% stake in Zamil Offshore Services Company for an undisclosed amount.