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Webster 1913 Edition

Noun.

One of a number of persons who gets a company incorporated; one of the original members of a corporation.

incorporator ‎(plural incorporators)

One who, or that which, incorporates.
- 1988 June 17, Harold Henderson, “Big Ideas”, in Chicago Reader:
  In 1853, the incorporators of the Mount Carroll Seminary convinced 83 people to sign up for shares totaling $2,000, a goodly sum for that time and place--but only six paid in full, and the board wound up with less than $14,000 for land and buildings.

incorporātor