Employers list that are debarred from approval of immigrant or nonimmigrant petitions based on the DOL.
http://www.uscis.gov/files/nativedocuments/pegasus_11may09.pdf
http://www.uscis.gov/files/nativedocuments/organizations_ineligible_11may09.pdf
http://www.uscis.gov/files/nativedocuments/pegasus_11may09.pdf
http://www.uscis.gov/files/nativedocuments/organizations_ineligible_11may09.pdf