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Companies headquartered in Maine

6 public companies are headquartered in Maine, including 1 in the S&P 500 or Nasdaq-100. The biggest concentrations are in Portland, Bar Harbor and Camden.

6 companies · 5 cities · 1 ★ index members

Portland 2

Bar Harbor 1

Camden 1

Damariscotta 1

Westbrook 1

Other states: California Texas New York Massachusetts Florida Pennsylvania Illinois Virginia New Jersey Ohio Colorado Georgia North Carolina Connecticut Maryland Arizona Washington Tennessee Minnesota Michigan Wisconsin Indiana Utah Missouri Nevada Delaware Oklahoma Louisiana Kentucky Arkansas Nebraska South Carolina Alabama Oregon Iowa Kansas Washington, D.C. Idaho New Hampshire Rhode Island Montana North Dakota West Virginia Hawaii South Dakota Mississippi

Headquarters are each company's principal executive office as filed with the SEC (EDGAR business address), as of October 3, 2026. ★ marks S&P 500 and Nasdaq-100 members. All locations.