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Largest Mass.-Based Manufacturers
The largest firms on the Boston Business Journal’s inaugural list of The Largest Massachusetts-Headquartered Manufacturers employ more than 54,000 people in the Bay State. The list includes Massachusetts-headquartered businesses/brands that manufacture a product as a key part of their service offerings. However, it should be noted that the manufacturing might not actually be done in Massachusetts in some cases. This first list is intended to include a broad cross-section of industries, including life sciences (biopharma/medical devices), food & beverage, apparel, components and more. Information on The List was obtained through BBJ research or supplied by individual firms through questionnaires that the Business Journal could not independently verify. In case of ties, companies are ranked by total employment and then listed alphabetically if ties remain. Additionally, manufacturers that did not respond to employment surveys but were still included on this year’s List are sorted by estimated total employment figures derived from BBJ archives; annual filings with the U.S. Department of Labor; 10-K filings for public companies; and other firm-specific resources, as noted. The online version of this ranking expands beyond what appears in print; another 58 manufacturers are included in our digital rankings, in addition to the 20 featured in this week’s print edition. This week’s List is part of a shift in our research methodology and philosophy in 2025, one that will emphasize more data and context for readers while better coordinating the resources available to us and our 46 sister publications under the American City Business Journals flag. We anticipate this effort will identify thousands of new local records — and cumulatively, tens of thousands of new businesses across ACBJ’s footprint — this year alone. For information about this and other Lists, please contact Associate Editor/Research Sean McFadden at smcfadden@bizjournals.com or 617-316-3232.