Top companies in Boston
Biotech, robotics, and enterprise software clustered around MIT and Harvard.
Ranked by current headcount across companies headquartered in Boston. Refreshed daily.
- 1Walmart· Bentonville, Arkansas, United States
- 548.1k employees
- Founded 1962
- 2GE· Boston, Massachusetts, United States
- Grant
- 99.7k employees
- 3Fidelity Investments· Boston, Massachusetts, United States
- Secondary
- 85.1k employees
- Founded 1946
- 4Sam's Club· Bentonville, Arkansas, United States
- 48.5k employees
- Founded 1983
- 5State Street· Boston, Massachusetts, United States
- Post-IPO debt
- 46.2k employees
- 6Whirlpool Corporation· Benton Harbor, Michigan, United States
- Post-IPO equity
- 45.6k employees
- Founded 1911
- 7Boston Consulting Group (BCG)· Boston, Massachusetts, United States
- 40.6k employees
- Founded 1963
- 8Dunkin'· Roxbury Crossing, Massachusetts, United States
- 38k employees
- Founded 1950
- 9Liberty Mutual Insurance· Boston, Massachusetts, United States
- Debt
- 38k employees
- Founded 1912
- 10Publicis Sapient· Boston, Massachusetts, United States
- 24.7k employees
- Founded 1990
- 11Iron Mountain· Boston, Massachusetts, United States
- Post-IPO debt
- 23.7k employees
- Founded 1951
- 12Bain & Company· Boston, Massachusetts, United States
- 23.1k employees
- Founded 1973
- 13J.B. Hunt Transport Services, Inc.· Lowell, Arkansas, United States
- Post-IPO debt
- 22.2k employees
- Founded 1961
- 14Massachusetts General Hospital· Boston, Massachusetts, United States
- Grant
- 19.9k employees
- 15Northeastern University· Boston, Massachusetts, United States
- Grant
- 17.9k employees
- 16Boston Children's Hospital· Boston, Massachusetts, United States
- Grant
- 17.2k employees
- 17Boston University School of Public Health· Boston, Massachusetts, United States
- 16.8k employees
- Founded 2012
- 18Boston University· Boston, Massachusetts, United States
- Grant
- 16.3k employees
- 19Walmart Global Tech· Bentonville, Arkansas, United States
- 14.8k employees
- Founded 1962
- 20Commonwealth of Massachusetts· Boston, Massachusetts, United States
- 14.5k employees
- 21Oregon State University· Corvallis, Oregon, United States
- Grant
- 13.9k employees
- 22Wayfair· Boston, Massachusetts, United States
- 12.4k employees
- Founded 2002
- 23Beth Israel Deaconess Medical Center· Boston, Massachusetts, United States
- Grant
- 12k employees
- Founded 1996
- 24Harvard Business School· Boston, Massachusetts, United States
- 12k employees
- Founded 1908
- 25Harvard Medical School· Boston, Massachusetts, United States
- 11.8k employees
Find engineers and operators at companies in Boston
Boston is one of the densest markets for technology talent in the world. The list above ranks the largest companies headquartered in Boston by current headcount, drawn from public LinkedIn and Crunchbase records. With 5,654 matching companies in our index, the depth of engineers, designers, product managers, and founders is broad across stages and industries.
Hiring in Boston usually means hiring out of these companies. The biggest names anchor the talent pool — every senior engineer in Boston likely has at least one of them on their resume — and the fast-growing ones generate the most movement.
Refolk lets you reach into this pool with plain English. Ask for “senior backend engineers in Bostonwho’ve shipped at scale” or “founders in Bostonwho left in the last year” and Refolk returns a ranked shortlist with the evidence behind each match.
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Last refreshed: Thu, 07 May 2026 04:59:42 GMT
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