[2] It is a subsidiary of Enrique Razon's Trident Water Holdings Company, Inc., who acquired stakes from the country's oldest conglomerate, Ayala Corporation, starting in 2020[3] and completely taking over by 2024.

In late 2019, leading figures Jaime Augusto Zobel de Ayala along with Manny Pangilinan of Maynilad, were threatened of arrest by then President Rodrigo Duterte due to accusations of syndicated estafa, economic sabotage, among others.

[8] The sequence of events resulted to the eventual re-negotiation of MWC's concession contract, and within two months Ayala selling the controlling stake to Trident Water Holdings Company, Inc., a subsidiary of Prime Infrastructure Holdings Inc. of the Razon Group.

Angat Dam supplies 96% of Metro Manila's water needs with a storage capacity of about 850 million cubic meters (30×10^9 cu ft).

Primarily a diversion dam, its elevation is maintained at 101 meters (331 ft) as it delivers water into tunnels that lead to La Mesa reservoir and Balara Filtration plants through three tunnels leading to three settling basins in Bigti, Norzagaray, Bulacan.

Five aqueducts connected to these settling basins will then deliver a maximum of 4 billion liters (1.1×10^9 U.S. gal) of water daily at the Novaliches Portal, which will then be conveyed through three open channels going to the Balara Treatment Plant.

La Mesa Dam is an earth dam located in Novaliches, Quezon City and it serves as a primary sedimentation basin prior to water treatment in the Balara and East La Mesa Treatment Plants.

On the other hand, Balara Filter 2 has been operational since 1958 and treats 1,130 million liters (300,000,000 U.S. gal) of water daily.

The East La Mesa Treatment Plant, located in Payatas, Quezon City, has a capacity of treating 150 million liters (40,000,000 U.S. gal) of water per day.

Pipelines laid and maintained across the East Zone since 1997 have spanned over 5,000 kilometers (3,100 mi), serving 99 percent of the company's concession area with a water supply pressure of 7 bar and above.

Siphoned sludge is then brought to Septage Treatment Plants where it is treated and returned to the environment safely.

A subsidiary of Manila Water Company, Inc., Manila Water Philippine Ventures (MWPV) covers the country's key metropolitan areas including Cebu, Laguna, Tanauan City in Batangas, Clark in Pampanga, Zamboanga City, Tagum City in Davao and key locations in Bulacan, Pangasinan, Isabela, Nueva Ecija, Iloilo and Samar.

Ltd. (MWAP) currently provides half of the bulk water requirements of Ho Chi Minh City in Vietnam and leakage reduction programs in Bandung, Indonesia and Yangon, Myanmar.

Lastly, Manila Water Total Solutions Corporation (MWTS), a wholly owned subsidiary, handles after-the-meter products and services.