(doing business as Indah Water or IWK) is a Malaysian national wastewater and sanitation company.

[3] It is a government-owned company under the Minister of Finance Incorporated, which has the task of developing and maintaining a modern and efficient sewerage system for West Malaysia.

[4] Indah Water was established on 2 April 1994[1] when the Federal Government granted the company, a concession for nationwide sewerage services which prior to that, was under the responsibility of local authorities.

[3] Since then, the company has taken over the sewerage services from local authorities in all areas except the States of Sabah and Sarawak.

[3] The company shares its wastewater management expertise with several Asian countries under their IWK 2020 Transformation Plan (ITP2020), which was initiated in 2017.