SIC 4941
Water Supply
25 tracked issuers · live filings below.
Tracked issuers
25
Recent filings surfaced
40
SIC code
4941
Industry overview
The Water Supply industry, classified under SIC 4941, encompasses municipal utilities, regional water authorities, and private operators responsible for sourcing, treating, and distributing potable water and related services such as wastewater pre-treatment, metering, and infrastructure maintenance. Typical customers include households, commercial buildings, industrial plants, and agricultural users, all demanding reliable quantity and quality at predictable prices. Operators face significant risks from aging pipelines, drought and climate volatility, energy-intensive treatment costs, and strict federal, state, and local regulations covering water quality, PFAS and other emerging contaminants, cybersecurity, and rate-setting. In 2024–2025, the sector is defined by increased investment in smart metering, leak detection, desalination and reuse projects, resilience upgrades, and consolidation among smaller systems seeking capital and compliance scale. ESG-focused investors are also scrutinizing utilities’ governance, affordability programs, and climate adaptation plans. For deeper insight into individual water utilities’ strategies, capital spending, and regulatory proceedings, view their live SEC filings on EarningsFeed.
Source: Earnings Feed research · last fetched 11/23/2025
Featured issuers
- AMERICAN STATES WATER CO
CIK 0001056903 · AWR
CA
- AMERICAN WATER WORKS CO INC
CIK 0000318819
DE
- AQUARION CO
CIK 0000049423
DE
- ARTESIAN RESOURCES CORP
CIK 0000863110 · ARTNA
DE
- AZURIX CORP
CIK 0001080205
DE
- American Water Works Company, Inc.
CIK 0001410636 · AWK
DE
- BIRMINGHAM UTILITIES INC
CIK 0000006694
CT
- CADIZ INC
CIK 0000727273 · CDZI
DE
- CALIFORNIA WATER SERVICE GROUP
CIK 0001035201 · CWT
DE
- COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP
CIK 0001170858 · SBS
D5
- CONNECTICUT WATER SERVICE INC / CT
CIK 0000276209
CT
- CONSUMERS WATER CO
CIK 0000023910
ME
Recent filings
American Water Works Company, Inc. 8-K
311.3 KBCOMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP 6-K
20.4 MBCOMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP 6-K
9.4 MB- 10-Q/AAccepted Nov 11, 7:00 PM ETAcc 0000727273-99-000020
CONNECTICUT WATER SERVICE INC / CT 10-Q
68.4 KBCONNECTICUT WATER SERVICE INC / CT 8-K
6.4 KBCONNECTICUT WATER SERVICE INC / CT 8-K
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