Is it illegal for employers to bar employees from organizing, regardless of if the employees have a union or are a part of said union?? That is, if employees don't have a union but are still organizing to to stop their employer from taking unfair advantage, is it illegal for the employer to stop or to try to stop employees from organizing or for the employer to stop what the suspect to be organizing? For example, if employees send emails or send an anonymous group email to the CEO, or head manager, and the employer is trying to severely to limit any communication during work hours because they suspect organizing. Are the rules the same for contract employees and regular full-time employees? I would assume so, since a more positive outcome is always more likely w/large groups, etc.Is it illegal for employers to bar/prohibit/prevent employees from organizing? Also would like to know if the employer is prohibited from barring employee organization regardless of whether the employee is contract or a regular full-time employee (i..e. employer could give direct instructions to not organize, or just make it impossible for employees to communicate through their actions). Citations would be useful.