The Walt Disney Co., Comcast NBCUniversal and Sony Pictures Entertainment are among the major media and tech companies to sign on to a Human Rights Campaign letter, urging the Senate to pass marriage equality legislation amid fears that it could be rolled back by some future Supreme Court ruling.

The letter — which you can read here — says that “no person, including same-sex couples and interracial couples protected by this bill, should fear their marriage will not be recognized by thefederal government or their employment benefits threatened.” The three companies were among more than 170 to sign on to the letter.

Others include Amazon, Apple, AT&T, Bloomberg, Universal Music Group and Warner Music Group. Netflix, Paramount Global and Warner Bros.