What is the plural possessive of contractor?

Answer 1

The plural form of the noun contractor is contractors.

The plural possessive form is contractors'.

example: All of the contractors' bids are being reviewed.

Answer 2

The possessive form for the plural noun contractors is contractors'.

Example: All of the contractors' bids have beenreceived.

Answer 3

The possessive form of the plural noun contractors is contractors'.

Example: All of the contractors' bids are nearly the same.