There are certain employers, agents and even Attorney who engage in illegal and unethical practices. The government is working actively to punish such parties by excluding them from filing under the seasonal and permanent Labor Certification programs.
The Office of Foreign Labor Certification maintains the list below of employers, attorneys, and/or agents from the Permanent Labor Certification Program debarred under 20 CFR 656.31(f), the debarment provision, of the regulations governing the labor certification process. For more information on debarments under the Permanent Labor Certification Program, see 20 CFR 656.31(f).
For the complete list click here Download file
Here is a list for excluded H1B employer – click here