Several major advertisers have announced they are cutting off their spending on microblogging site X after Elon Musk's post on social media platform endorsing antisemitic conspiracy theory, The New York Times reported.

Disney said it was halting spending on X. Similarly, Lionsgate, the entertainment and film distribution company, and Paramount Global, the media giant that owns CBS announced they are pausing spending on X.

Apple, which spends tens of millions of dollars a year on X, also announced suspension of advertising on X, The New York Times reported citing a person with knowledge of the situation. On Thursday, IBM announced that it will cut its spending on X.

The decision of companies comes after Musk agreed with a post that said Jewish people who are facing antisemitism amid the Israel-Hamas war of pushing the "exact kind of dialectical hatred against whites that they claim to want people to stop using against them" and supporting the immigration of "hordes of minorities." Musk responded, "You have said the actual truth."

On Friday, the White House condemned Elon Musk for boosting the anti-Jewish conspiracy theory, calling it "unacceptable," The New York Times reported.

In a statement, White House spokesperson Andrew Bates said that it was "unacceptable to repeat the hideous lie behind the most fatal act of antisemitism in American history at any time, let alone one month after the deadliest day for the Jewish people since the Holocaust."

Many companies, including General Motors and Volkswagen, have balked several times over the past year at having their promotions appear alongside a documented surge in hate speech, misinformation and foreign propaganda on X, The New York Times reported.

In April, Elon Musk announced that nearly all advertisers had returned on the platform, without revealing whether they were spending at the same levels. He later said that the ad revenue had reduced by 50 per cent.