| American Postal Workers Union, AFL-CIO | | | labor relations violation | 2010 | $15,847 |
| American Postal Workers Union and its Local 482, AFL-CIO | | | labor relations violation | 2002 | $7,199 |
| American Postal Workers Union and it's Palm Beach Area Local 749 | | | labor relations violation | 2009 | $32,000 |
| American Postal Workers Union - Chicago Local, AFL-CIO | | | labor relations violation | 2002 | $5,248 |
| American Postal Workers Union Denver Metro Area Local 229 (USPS) | | | labor relations violation | 2019 | $6,593 |
| AMERICAN POSTAL WORKERS UNION | | | labor relations violation | 2006 | $7,100 |
| American Postal Workers Union | | | labor relations violation | 2002 | $8,742 |
| American Port Service | | | labor relations violation | 2002 | $6,500 |
| American Plumbing Contractors, Inc. | | | labor relations violation | 2022 | $300,000 |
| American Phoenix, Inc. | | | labor relations violation | 2000 | $12,352 |
| American Paragon Protective Services, LLC | | | labor relations violation | 2016 | $25,723 |
| American Paper Mills of Vermont | | | labor relations violation | 2008 | $237,968 |
| American Ordnance, LLC, Milan Army Ammunition Plant | | | labor relations violation | 2007 | $19,800 |
| American National Red Cross Blood Services - Badger - Hawkeye Region | | | labor relations violation | 2019 | $9,092 |
| American National Can Group, Inc. | Ball Corp. | paper and packaging | labor relations violation | 2010 | $150,000 |
| American Minutemen Sewer & Drain Service, Inc. | | | labor relations violation | 2021 | $193,177 |
| American Metalcraft Industries, Inc.; NT Leasing, Inc.; Grove Accu-Fab, Inc. | | | labor relations violation | 2005 | $75,000 |
| American Medical Response/EMSC | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2010 | $5,000 |
| American Medical Response, NW (Josephine County Oregon) | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2004 | $48,783 |
| American Medical Response, Inc. | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2003 | $26,350 |
| American Medical Response of Southern California | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2019 | $10,000 |
| AMERICAN MEDICAL RESPONSE OF MASSACHUSETTS, INC. | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2015 | $5,522 |
| American Medical Response of Connecticut, Inc. | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2012 | $9,741 |
| American Medical Response of Connecticut | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2016 | $109,750 |
| American Medical Response NW (A Laidlaw Corporation) | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2002 | $46,700 |
| American Medical Response Mid-Atlantic, Inc. | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2022 | $41,104 |
| American Medical Response Ambulance Services, Inc. | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2013 | $21,819 |
| AMERICAN MEDICAL RESPONSE - NORTHERN KENTUCKY | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2021 | $58,805 |
| American Medical Response (AMR) | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2007 | $35,000 |
| American Medical Response of Oklahoma, Inc. | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2003 | $67,500 |
| American Medical Response | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2012 | $5,830 |
| American Medical Response | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2011 | $5,000 |
| American Medical Response | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2011 | $18,445 |
| American Medical Response | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2007 | $8,000 |
| American Medical Response | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2005 | $35,000 |
| American Medical Response | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2005 | $5,063 |
| American Medical Response | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2005 | $8,249 |
| American Medical Response | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2004 | $15,000 |
| American Medical Response | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2004 | $10,700 |
| American Medical Response | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2004 | $25,000 |
| American Medical Response | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2003 | $11,000 |
| American Medical Response | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2003 | $20,000 |
| American Medical Response | KKR & Co. | private equity (including portfolio companies) | labor relations violation | 2000 | $20,364 |
| American Mattress Company; Excel Bedding Company | | | labor relations violation | 2003 | $16,208 |
| American Marine Transport | | | labor relations violation | 2002 | $17,264 |
| American Maintenance Services | | | labor relations violation | 2015 | $6,169 |
| American Machining Specialties, Inc, | | | labor relations violation | 2008 | $84,000 |
| American Lawyer Media, Inc./New York Law Publishing Company | | | labor relations violation | 2002 | $12,000 |
| American Kleaner Manufacturing Co., Inc. | | | labor relations violation | 2001 | $25,000 |
| American K-9 Interdiction/The McConnell Group, Inc. | | | labor relations violation | 2004 | $10,000 |
| American Healthcare Associates, d/b/a Hallmark Center | | | labor relations violation | 2002 | $17,482 |
| AMERICAN HEALTH CORPORATION d/b/a EAGLEVIEW HEALTH AND REHABILITATION | | | labor relations violation | 2012 | $6,447 |
| AMERICAN HEALTH CORPORATION d/b/a EAGLEVIEW HEALTH AND REHABILITATION | | | labor relations violation | 2012 | $5,665 |
| American Guard Service, Inc. | | | labor relations violation | 2005 | $27,641 |
| American Girl Place Incorporated- New York | | | labor relations violation | 2010 | $12,724 |
| American Fuji Seal, Inc. | | | labor relations violation | 2008 | $13,000 |
| American Fuel Cell and Coated Fabrics Company d/b/a Amfuel | | | labor relations violation | 2021 | $73,000 |
| American Freightways/a FedEx Company | FedEx | freight and logistics | labor relations violation | 2006 | $156,497 |
| American Florist Supply, Inc. d/b/a Baystate & Johnson's | | | labor relations violation | 2001 | $11,500 |
| American Flint Glass Workers Union of North America , AFL-CIO | | | labor relations violation | 2000 | $19,000 |
| American Firestop Solutions, Inc. | | | labor relations violation | 2012 | $400,000 |
| American Fire Protection | | | labor relations violation | 2001 | $7,714 |
| American Fine Sinter | | | labor relations violation | 2005 | $20,000 |
| American Fiber & Finishing, Inc. | | | labor relations violation | 2002 | $40,000 |
| American Federation of Teachers, AFL-CIO d/b/a Washington State Nurses Organizing Project, and/or Am | | | labor relations violation | 2020 | $113,339 |
| American Federation of State, County and Municipal Employees, Minnesota Council 65 | | | labor relations violation | 2007 | $5,500 |
| American Federation of State, County and Municipal Employees, Council 79 (Shands Jacksonville Medica | | | labor relations violation | 2014 | $71,467 |
| American Federation of Government Employees | | | labor relations violation | 2003 | $157,437 |
| American Elevator Corp. , alter ego of BBQL, LLC | | | labor relations violation | 2016 | $7,790 |
| American Electronic Warfare Associates, Incorporated | | | labor relations violation | 2017 | $33,460 |
| AMERICAN ELECTRIC POWER/SOUTHERN REGIONAL SERVICES ORGAN. | American Electric Power | utilities and power generation | labor relations violation | 2001 | $6,407 |
| American Electric Power d/b/a Public Service Co. of Oklahoma | American Electric Power | utilities and power generation | labor relations violation | 2008 | $19,000 |
| American Eagle Ready Mix | | | labor relations violation | 2018 | $10,300 |
| American Eagle Maintenance Corp. | | | labor relations violation | 2006 | $7,744 |
| American Disposal Services | Republic Services | waste management and environmental services | labor relations violation | 2011 | $32,548 |
| American Directional Boring | | | labor relations violation | 2011 | $262,500 |
| American Development, Inc. and American Supply | | | labor relations violation | 2002 | $16,619 |
| American Decorative Surfaces, Inc. | | | labor relations violation | 2004 | $21,000 |
| American Decorative Surfaces, Inc. | | | labor relations violation | 2004 | $21,000 |
| American Crane Corporation | | | labor relations violation | 2001 | $35,000 |
| American Crane Corporation | | | labor relations violation | 2001 | $83,289 |
| AMERICAN CONCRETE | | | labor relations violation | 2004 | $9,707 |
| American Commercial Lines Transportation Services, LLC a wholly owned subsidiary of American Commercial Lines Inc. | | | labor relations violation | 2008 | $40,000 |
| American Coal Resource | | | labor relations violation | 2003 | $56,630 |
| American Chemical Works | | | labor relations violation | 2000 | $18,837 |
| American Casino Entertainment Properties, LLC d/b/a Stratosphere Casino, Hotel and Tower | | | labor relations violation | 2015 | $8,500 |
| American Cable Co. | | | labor relations violation | 2002 | $13,000 |
| American Building Service | | | labor relations violation | 2001 | $10,000 |
| American Building Maintenance | ABM Industries | business services | labor relations violation | 2008 | $65,000 |
| American Building Maintenance | ABM Industries | business services | labor relations violation | 2007 | $7,452 |
| American Building Maintenance | ABM Industries | business services | labor relations violation | 2000 | $10,000 |
| American Bridge | | | labor relations violation | 2009 | $10,000 |
| American Boxboard, LLC | | | labor relations violation | 2010 | $9,028 |
| American Benefits Corporation | | | labor relations violation | 2010 | $5,325 |
| American Benefit Plan Administrators, Inc. | | | labor relations violation | 2010 | $10,396 |
| American Axle & Mfg. Inc. | American Axle & Manufacturing | automotive parts | labor relations violation | 2001 | $52,000 |
| American Axle & Manufacturing | American Axle & Manufacturing | automotive parts | labor relations violation | 2008 | $407,199 |
| American Axle & Manufacturing | American Axle & Manufacturing | automotive parts | labor relations violation | 2005 | $5,225 |
| American Automatic Sprinkler Systems, Inc. | | | labor relations violation | 2008 | $60,000 |
| American Automatic Sprinkler | | | labor relations violation | 2008 | $30,000 |
| American Association of Professional Landmen | | | labor relations violation | 2016 | $1,025,000 |
