6:16 AM PT -- Two major sponsors have ditched Piercy in wake of his Instagram post ... Titleist and clothing company J.Lindeberg say they're done with the golfer.
"We, J.Lindeberg, as a company do not stand by the statements made by Piercy," J.Linedeberg officials said in a statement Thursday, "and we want to make sure our customers, employees, and other ambassadors know we support all communities and have no room for hate or discrimination in our company."
Reps for Titleist did not release a statement on the matter ... but confirmed to Golf Digest earlier this week they had let go of the golfer.