Middlesex Water Company
Middlesex Water Company (Nasdaq: MSEX) owns and operates regulated water and wastewater systems, primarily in New Jersey and Delaware, and manages systems under contract for municipal and private clients. Its services include treating and distributing water for residential, commercial, industrial and fire-protection… From the company’s description.
Over the twelve months to Sep 30, 2026, Middlesex Water Company reported revenue of $212.25M, up 8.9% from a year earlier, and net income of $52.01M. Its operating margin was 30.5%, and operations generated $69.47M in cash. In fiscal 2025, it reported revenue of $194.69M, up 1.5% from fiscal 2024, and net income of $42.82M.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What Middlesex Water Company does
In the company’s own words
Middlesex Water Company (Nasdaq: MSEX) owns and operates regulated water and wastewater systems, primarily in New Jersey and Delaware, and manages systems under contract for municipal and private clients. Its services include treating and distributing water for residential, commercial, industrial and fire-protection uses, wastewater collection and treatment, and operation and maintenance of municipal water, wastewater and stormwater systems. The Middlesex System in New Jersey generated approximately 67% of 2025 consolidated operating revenue, while the Tidewater System in Delaware contributed about 25%; smaller operations include the Pinelands water and wastewater systems and contracted municipal services. The company serves approximately 131,000 customers across its regulated utilities, including about 61,000 Middlesex retail customers and 65,000 Tidewater retail customers. It reported 2025 operating revenue of $194.7 million and had 395 employees at year-end. Middlesex was incorporated as a water utility in 1897. Its website is www.middlesexwater.com.
Company details
- Sector
- Utilities
- Industry (SIC)
- Electric, Gas & Water
- Headquarters
- ISELIN, NJ
- Fiscal year end
- December
- CIK
- 66004
- SIC
- 4941
Financial performance, year by year
Fiscal 2011–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns Middlesex Water Company — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Largest fund holders · Middlesex Water Company’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Could not be determined for this company: bond issues.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
Put this business in context.
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