Whistleblower protection in the United States

The Whistleblower Protection Act of 1989 was enacted to protect federal employees who disclose ``Government illegality, waste, and corruption'' from adverse consequences related to their employment. This act provides protection to whistleblowers that may receive demotions, pay cuts, or a replacement employee. There are certain rules stated in this act that are civil protection standards against voidance of dismissal, voidancce of cancellation of worker dispatch contracts, and disadvantageous treatment (i.e. demotion or a pay cut). The court judges what is considered valid or not for each complaint filed for dismissal or cancellation.

Question: does the whistleblower act apply to private companies
Answer: no