Cheryl Boone Isaacs said that the relationship with the accountancy firm PriceWaterhouseCoopers (PWC) was also under review.
Brian Cullinan and Martha Ruiz were responsible for Sunday's mishap.
La La Land was mistakenly announced as the winner of the best picture award.
The team behind the film were in the middle of their speeches before it was revealed the accolade should have gone to Moonlight.
