"Thank you for always supporting broader representation in the industry", Cox DiGiovanni wrote.
No word on whether Affleck and Damon are also applying an inclusion rider to every acting project, or only their production company.
Fanshen Cox DiGiovanni, Pearl Street's head of strategic outreach, announced the company's decision in a tweet that also made reference to actor Michael B. Jordan (Creed, Black Panther), whose own production company also adopted inclusion riders for its projects in the past week. A clip of Damon explaining diversity to producer Effie Brown on Project Greenlight went viral back in 2015. Actress Hilarie Burton and makeup artist Annamarie Tendler have said that Affleck has groped them, while Rose McGowan has said that Affleck was lying about not knowing about what she says Harvey Weinstein did to her.More news: European Union asks for more clarity from Britain on future relationship after Brexit
Meanwhile, Damon came under fire previously for seeming to suggest that there was a difference between sexual harassment and sexual misconduct.
In the segment, Damon said that diversity should be handled in "the casting of the film, not in the casting of the show".
After the scandal broke, Affleck said: "I knew he was sleazy and kind of a bully, but unfortunately that wasn't uncommon. Whether you're straight or gay, people shouldn't know anything about your sexuality because that's one of the mysteries that you should be able to play". "That is an ongoing conversation that we all should be having".
"I just found out about this last week".