Glass, cement and stone manufacturers in New Hampshire
New Hampshire has 79 glass, cement and stone establishments employing 1,968 people (Census, 2023), and EPA's ECHO database lists 36 active glass, cement and stone facilities in the state. By employment it is New Hampshire's number 11 manufacturing industry, and New Hampshire ranks number 38 among states for it.
- NAICS subsector
- 327
- Nonmetallic Mineral Product Manufacturing
- Establishments
- 79
- Census 2023
- Employees
- 1,968
- Census 2023
- In EPA records
- 36
- With a page here
- 2
- Revised
- November 11, 2026
Glass, cement and stone factories with a page
| Facility | What it makes (NAICS) | City |
|---|---|---|
| Georgia-Pacific Gypsum | Gypsum Product Manufacturing | Newington |
| National Gypsum Wallboard Plant | Gypsum Product Manufacturing | Portsmouth |
These are the New Hampshire glass, cement and stone facilities that report to EPA's Toxics Release Inventory. The other 34 in EPA records don't have a page yet.
What these factories make
- Gypsum Product Manufacturing (NAICS 327420): 2 facilities
Where they cluster
Cities with the most active glass, cement and stone facilities in EPA records: Dover (4), Bow (3), Portsmouth (3), Milford (3), Newington (2).
Glass, cement and stone manufacturing across the US. Everything made in New Hampshire.