U.S. Sens. Dianne Feinstein (D-Calif.), Tammy Baldwin (D-Wis.) and Susan Collins (R-Maine) have introduced the Respect for Marriage Act, which would repeal the Defense of Marriage Act, enshrine marriage equality in federal law and provide additional legal protections for marriage equality.

Last week, the Human Rights Campaign sent a letter to every senator signed by 170 companies calling on them to support the legislation.

“It’s encouraging to see such broad support from the business community for marriage equality,” Feinstein said. “These companies understand that marriage equality must remain the law of the land to protect their customers and employees and their families. Unfortunately, the freedom to marry is in jeopardy after a recent Supreme Court decision. Our bill would ensure that regardless of what the court does, same-sex and interracial marriages remain protected.”

In a statement, representatives of the companies said they “strongly embrace diversity and inclusion.”

“Inclusive business practices improve our bottom lines and lead to more productive and engaged employees, increased customer satisfaction and, ultimately, improved competitiveness and financial performance,” the statement read. “Our employees are the foundation of our companies – they drive our ability to successfully do business, invest in communities around the country and create the products and services we proudly offer. As business leaders committed to inclusion and equality for our employees, their families and the communities we serve, we call on the Senate to pass the Respect for Marriage Act.”