- City of Nashua, New Hampshire
(Sole Shareholder) - Pennichuck Corporation
(Independent Board of Directors)- Pennichuck Water Works, Inc. – Regulated Water Utility
- Established in 1852; serves 11 cities and towns; Serving approx. 28,000 customers, which comprises approximately 10% of the households in NH
- Pennichuck East Utility, Inc. – Regulated Water Utility
- Established in 1998; serves 19 cities and towns; located throughout southern and central NH; approximately 7,300 customers
- Pittsfield Aqueduct Company, Inc. – Regulated Water Utility
- Acquired in 1998; serves the town of Pittsfield, NH; approximately 650 customers
- Pennichuck Water Service Corporation – Non-regulated Contract Services Company
- Provides contracted services to Hudson and Woodstock NH, and Salisbury, Amesbury, and Rowley Massachusetts, as well as 75 non-municipal water systems
- The Southwood Corporation – Non-regulated Real Estate Holding Company
- Approximately 450 acres of land located in Nashua and Merrimack NH
- Pennichuck Water Works, Inc. – Regulated Water Utility
