The companies seek marriage equality, claiming it is good for business.

A group of the largest corporations in the world–names like Amazon, Apple, Facebook, Google, and 375 others– came forth as one filing, an amicus brief in the U.S. Supreme Court Friday, stating that all couples share the right to marry.

Filed by the law firm Morgan Lewis, the brief actually breaks down the call for same-sex marriage as a business affair, claiming that the existing legal parameters place “significant burdens on employers and their employees–making it increasingly hard to conduct business.”

Arguments in the brief state that because state laws vary regarding marriage equality, it is much harder and much more costly for companies to attract and recruit top-tier talent and enroll employees in benefit programs who are restricted in being married.  This is among many other issues that the brief also lists.

The businesses range from smaller family owned companies to corporate giants of all sectors, from United Airlines to Coca Cola.

The case was filed under Obergefell v. Hodges, and this case is just one of many the Supreme Court will be hearing in April, all regarding marriage equality.  Whichever way the court rules is expected to decide whether the Constitution protects same-sex couples’ rights to marry, no matter which state they reside in, and also if the power of the Constitution nullifies states being able to still forbid gay marriage.

As of now, 36 states and Washington D.C. allow same sex marriage.

-Curt Cramer (@CurtisRemarc)