Facebook, Microsoft, Starbucks, and many other businesses are urging the Supreme Court to interpret the Civil Rights Act as preventing discrimination based on sexual orientation.

Seventy-six businesses filed a brief on Wednesday urging the Supreme Court to hear Evans v. Georgia Regional Hospital, a case involving a Georgia security guard who says she was harassed at work because she is a lesbian. The businesses' brief to the high court asks it to hear the case arriving from the 11th Circuit Court of Appeals because "they know that ending discrimination in the workplace is good for business, their employees, and the U.S. economy as a whole."

"There is no truth to the notion that laws forbidding sexual orientation discrimination are unreasonably costly or burdensome for business," wrote attorneys representing the businesses.

"Unless this Court grants review, the same federal law will continue to be interpreted in opposite ways based on nothing more than the happenstance of the state in which an employee lives. Such a lack of uniformity in the treatment of the same federal law creates significant business costs that federal employment discrimination law is intended to obviate."

The attorneys wrote the existing split within the federal circuit courts harms businesses and the economy by creating uncertainty and noted the current environment means, "employees who work in Illinois, Indiana, or Wisconsin enjoy a different set of federal anti-discrimination protections than those who work in Alabama, Florida, or Georgia."

The Supreme Court is scheduled to review whether to grant the Evans case later this month.