UK SIC 2007 code in Section E: Water supply; sewerage, waste management and remediation activities
37000 Sewerage
SIC 37000 is the UK code for sewerage. Companies House accepts it when you register a company or file a confirmation statement.
- Code
- 37000 (UK SIC 2007, Companies House list)
- Section
- Section E: Water supply; sewerage, waste management and remediation activities
- Division
- 37 Sewerage
- SIC 2026
- 37.00 Sewerage (1:1)
- Closest US NAICS
- 221320, 562219, 562991, 562998
Activities ONS lists under 37000
The ONS index assigns these 13 activities to this code. If one describes your company, this is the code to use.
- Cesspools emptying and cleaning
- Chemical toilets servicing
- Drains maintenance
- Human waste water collection and transport by sewers, collectors, tanks and other means of transport
- Local authority drainage services
- Local authority sewage services
- Rain water collection and transportation by sewers, collectors, tanks and other means of transport
- Septic tanks emptying and cleaning
- Sewage farm
- Sewage works
- Sewerage system maintenance and operation
- Treatment of human waste water by means of physical, chemical and biological processes
- Treatment of waste water (human, industrial, from swimming pools etc.) by various processes.
Source: ONS UK SIC 2007 alphabetical index.
What changes in SIC 2026
ONS published UK SIC 2026 in 2026. Its correspondence table maps this code's class (37.00) to:
| SIC 2026 code | Heading | Link type |
|---|---|---|
| 37.00 | Sewerage | 1:1 |
"1:1" means the class carries over unchanged in scope; other link types mean it was split or merged. Companies House still uses SIC 2007, so keep filing with 37000 until it announces a switch.
Closest US NAICS codes
Matched through the shared international class (ISIC Rev. 4). Treat these as a starting point and read the definition before using one.
Data last changed November 14, 2026. Source: Companies House condensed SIC list. How this page is built.