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Top companies in Boston

Biotech, robotics, and enterprise software clustered around MIT and Harvard.

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Ranked by current headcount across companies headquartered in Boston. Refreshed daily.

  1. 1
    Walmart· Bentonville, Arkansas, United States
    • Post-IPO debt
    • 433.2k employees
    • Founded 1962
  2. 2
    GE· Boston, Massachusetts, United States
    • Grant
    • 99k employees
  3. 3
    Fidelity Investments· Boston, Massachusetts, United States
    • Secondary
    • 83.9k employees
    • Founded 1946
  4. 4
    Sam's Club· Bentonville, Arkansas, United States
    • 49.7k employees
    • Founded 1983
  5. 5
    State Street· Boston, Massachusetts, United States
    • Post-IPO debt
    • 46.9k employees
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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 5,696 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.

How this list is built

Refolk pulled the largest companies headquartered in Boston from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 25 employees. The list refreshes once a day.

Last refreshed: Sun, 21 Jun 2026 07:15:52 GMT

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