| Syarikat Air Negeri Sembilan Sdn Bhd (SAINS) | |
| Former Name: | Jabatan Bekalan Air Negeri Sembilan Syarikat Air Negeri Sembilan Berhad |
| Foundation: | 19 September 2008 |
| Location: | Tingkat 2, Kompleks PKNNS, Jalan Persiaran S2 B2, 70300 Seremban, Negeri Sembilan, Malaysia |
| Key People: | Mohamad Hasan, Chairman Wan Rasdi Wan Ismail, Managing Director |
| Parent: | Menteri Besar Negeri Sembilan Incorporation |
Syarikat Air Negeri Sembilan Sdn Bhd, (literally meaning Negeri Sembilan Water Company Private Limited, abbreviated as SAINS), formerly known as Negeri Sembilan Water Supply Department (Malay: Jabatan Bekalan Air Negeri Sembilan, abbreviated as JBANS) and Syarikat Air Negeri Sembilan Berhad (Negeri Sembilan Water Company Limited) is a government-linked company responsible for water supply services in the state of Negeri Sembilan.