Manila Water Company, Inc., together with its subsidiaries, provides water treatment, water distribution, sewerage, and sanitation services to residential, commercial, industrial, and semi-business customers in the Philippines and internationally. It also offers pipelaying and integrated used water services, as well as sells purified water in selected areas in Metro Manila; and bulk water in the province of Cebu. The company provides its services to approximately 6 million people in the East Zone encompassing 23 cities and municipalities, including Makati, Mandaluyong, Pasig, Pateros, San Juan, Taguig, Marikina, Quezon City, and Manila, as well as various towns of Rizal. Manila Water Company, Inc. was founded in 1997 and is based in Quezon City, the Philippines. Manila Water Company, Inc. is a subsidiary of Ayala Corporation.