Factories in Massachusetts
Massachusetts has 5,920 manufacturing establishments employing 234,190 people (Census County Business Patterns, 2023), 1.9% of US manufacturing jobs and the 21st most of any state. The largest industries by employment are computers and electronics, fabricated metal products and chemicals. We track 10 new plant projects here, 1 under construction.
- Establishments
- 5,920
- Census 2023
- Manufacturing jobs
- 234,190
- Census 2023
- In EPA records
- 4,349
- Active, ECHO
- New plants
- 10
- 1 building
- Sheet
- MA
- Revised
- November 11, 2026
What is made in Massachusetts
| Industry (NAICS subsector) | Establishments | Employees | In EPA records |
|---|---|---|---|
| Computers and electronics 334 | 563 | 51,665 | 472 |
| Fabricated metal products 332 | 1,101 | 29,583 | 769 |
| Chemicals 325 | 404 | 23,553 | 542 |
| Food 311 | 721 | 23,552 | 175 |
| Machinery 333 | 426 | 18,837 | 424 |
| Medical devices and other goods 339 | 536 | 17,991 | 325 |
| Plastics and rubber 326 | 202 | 12,247 | 269 |
| Electrical equipment and appliances 335 | 153 | 9,689 | 147 |
| Paper 322 | 97 | 7,480 | 126 |
| Printing 323 | 443 | 7,311 | 234 |
| Vehicles, aircraft and parts 336 | 123 | 6,326 | 151 |
| Beverages and tobacco 312 | 193 | 5,889 | 31 |
| Glass, cement and stone 327 | 226 | 4,695 | 198 |
| Furniture 337 | 234 | 3,574 | 92 |
| Primary metals 331 | 65 | 2,496 | 115 |
| Wood products 321 | 152 | 2,081 | 49 |
| Apparel 315 | 52 | 2,068 * | 12 |
| Textile mills 313 | 56 | 1,937 | 72 |
| Textile products 314 | 101 | 1,574 | 24 |
| Leather goods 316 | 19 | 822 | 19 |
| Petroleum and coal products 324 | 53 | 820 | 103 |
Establishments and employees: U.S. Census Bureau, County Business Patterns 2023, mid-March employment. * Census flags this figure as having high noise. "In EPA records" counts active facilities in EPA's ECHO database, a subset that excludes plants EPA doesn't regulate.
New plants in Massachusetts
| Project | Industry | Status | Announced |
|---|---|---|---|
| Norton siRNA manufacturing plant expansionAlnylam Pharmaceuticals, Inc., Norton | Pharmaceuticals | Under construction | $250Mjobs not stated |
| Waltham robotics facility expansionBoston Dynamics, Waltham | Electrical equipment | Announced | —650 jobs |
| Billerica advanced manufacturing expansionEntegris Inc., Billerica | Semiconductors | Announced | $100M200 jobs |
| Northbridge pharmaceutical manufacturing facilityEyePoint Pharmaceuticals US Inc., Northbridge | Pharmaceuticals | Announced | $30M45 jobs |
| Holyoke custom framing plantFramebridge Inc., Holyoke | Other manufacturing | Announced | —100 jobs |
| Lynn military engine plant modernizationGE Aerospace, Lynn | Aerospace and defense | Announced | $42Mjobs not stated |
| Northborough materials plant expansionSaint-Gobain Ceramics & Plastics Inc., Northborough | Chemicals | Announced | $120M13 jobs |
| Milford gummy and nutrition products plantSky Nutro Incorporated, Milford | Food and beverage | Announced | $12M120 jobs |
| Devens medical device plant expansionSMC Ltd., Devens | Medical devices | Announced | —190 jobs |
| Devens additive manufacturing factory (third Massachusetts plant)VulcanForms, Devens | Steel and metals | Announced | —1,063 jobs |
Factory pages in Massachusetts
49 Massachusetts factories have their own page so far: the facilities that report to EPA's Toxics Release Inventory and hold the most detailed federal records. See all 49, grouped by industry.
Questions
What is made in Massachusetts?
Massachusetts has 5,920 manufacturing establishments employing 234,190 people (Census County Business Patterns, 2023), 1.9% of US manufacturing jobs and the 21st most of any state. The largest industries by employment are computers and electronics, fabricated metal products and chemicals.
How many manufacturers are in Massachusetts?
5,920 manufacturing establishments (Census, 2023). EPA's ECHO database lists 4,349 active manufacturing facilities in Massachusetts that it regulates, 964 of which report to the Toxics Release Inventory.
Are new factories being built in Massachusetts?
We track 10 large plant projects in Massachusetts announced since 2021: 1 under construction, 9 announced, 0 operating.
Can you tour a factory in Massachusetts?
Yes: Goodnow Farms Chocolate Factory Tour, Harbor Sweets Chocolate Factory Tour, Harpoon Brewery Boston Tour & Guided Tasting, Mason & Hamlin Piano Factory Tour and 3 more.