| MATSON CO | Matson | freight and logistics | workplace safety or health violation | 2016 | $13,500 |
| MATSON CO | Matson | freight and logistics | workplace safety or health violation | 2016 | $13,500 |
| MATSCHE FARMS INC. | | | workplace safety or health violation | 2015 | $25,000 |
| MATS, ETC. | | | workplace safety or health violation | 2019 | $25,288 |
| MATS, ETC. | | | workplace safety or health violation | 2024 | $61,391 |
| MATRIXCHEM INC. | | | workplace safety or health violation | 2019 | $6,500 |
| MATRIX, INC | | | workplace safety or health violation | 2017 | $8,250 |
| MATRIX WIRE, INC. | | | workplace safety or health violation | 2012 | $14,040 |
| MATRIX WIRE, INC. | | | workplace safety or health violation | 2012 | $7,560 |
| MATRIX WIRE INC. | | | workplace safety or health violation | 2007 | $8,000 |
| MATRIX STEEL COMPANY, INC | | | workplace safety or health violation | 2007 | $6,360 |
| MATRIX SERVICES | | | workplace safety or health violation | 2024 | $23,704 |
| MATRIX SERVICE, INC. | | | workplace safety or health violation | 2019 | $8,096 |
| MATRIX SERVICE INDUSTRIAL CONTRACTORS, INC. | Matrix Service Co. | miscellaneous services | workplace safety or health violation | 2005 | $7,000 |
| MATRIX SERVICE INDUSTRIAL CONTRACTORS, INC. | Matrix Service Co. | miscellaneous services | workplace safety or health violation | 2015 | $18,800 |
| MATRIX SERVICE INDUSTRIAL CONTRACTORS, INC. | Matrix Service Co. | miscellaneous services | workplace safety or health violation | 2015 | $28,000 |
| MATRIX SERVICE INC | | | workplace safety or health violation | 2023 | $8,000 |
| MATRIX SERVICE COMPANY | Matrix Service Co. | miscellaneous services | workplace safety or health violation | 2018 | $5,600 |
| MATRIX SERVICE COMPANY | Matrix Service Co. | miscellaneous services | workplace safety or health violation | 2023 | $9,900 |
| MATRIX SERVICE - MID-CONTINENT, INC. | Matrix Service Co. | miscellaneous services | workplace safety or health violation | 2000 | $5,175 |
| MATRIX ROOFING | | | workplace safety or health violation | 2013 | $5,880 |
| MATRIX RESIDENTIAL LLC | | | workplace safety or health violation | 2019 | $5,124 |
| MATRIX POWER SERVICES, INC. | | | workplace safety or health violation | 2018 | $5,115 |
| MATRIX OIL FIELD SERVICES LLC | | | workplace safety or health violation | 2014 | $36,720 |
| MATRIX METALS, LLC | | | workplace safety or health violation | 2008 | $27,300 |
| MATRIX METALS, LLC | | | workplace safety or health violation | 2008 | $35,107 |
| MATRIX METALS LLC DBA KEOKUK STEEL CASTINGS CO. | | | workplace safety or health violation | 2008 | $11,250 |
| MATRIX METALS LLC DBA KEOKUK STEEL CASTINGS CO. | | | workplace safety or health violation | 2009 | $8,750 |
| MATRIX METALS LLC DBA KEOKUK STEEL CASTINGS CO. | | | workplace safety or health violation | 2012 | $8,500 |
| MATRIX MAINTENANCE, LLC | | | workplace safety or health violation | 2014 | $30,000 |
| MATRIX INTERIORS | | | workplace safety or health violation | 2017 | $14,667 |
| MATRIX INTERIOR CONSTRUCTION, INC. | | | workplace safety or health violation | 2011 | $13,200 |
| MATRIX INTERIOR CONSTRUCTION, INC. | | | workplace safety or health violation | 2012 | $18,200 |
| MATRIX INTERIOR CONSTRUCTION, INC. | | | workplace safety or health violation | 2018 | $5,432 |
| MATRIX GLOBAL SERVICES CORP | | | workplace safety or health violation | 2023 | $16,591 |
| MATRIX GENERAL CONTRACTOR LLC | | | workplace safety or health violation | 2024 | $13,440 |
| MATRIX GENERAL CONTRACTOR LLC | | | workplace safety or health violation | 2024 | $9,600 |
| MATRIX ELECTRICAL CONTRACTING, INC. | | | workplace safety or health violation | 2016 | $10,780 |
| MATRIX COMPOSITES, INC. | | | workplace safety or health violation | 2008 | $9,376 |
| MATRIX COMPOSITES, INC. | | | workplace safety or health violation | 2019 | $7,162 |
| MATRIX COMPOSITES INC | | | workplace safety or health violation | 2016 | $9,900 |
| MATRA PETROLEUM OPERATING, LLC | | | workplace safety or health violation | 2017 | $6,727 |
| MATPLUS INC. | | | workplace safety or health violation | 2011 | $6,840 |
| MATOS USED AUTO LLC | | | workplace safety or health violation | 2021 | $10,000 |
| MATOS PARTNERS | | | workplace safety or health violation | 2013 | $8,000 |
| MATO INC. | | | workplace safety or health violation | 2003 | $10,000 |
| MATO | | | workplace safety or health violation | 2008 | $5,000 |
| MATLOCK ASSOCIATES INC | | | workplace safety or health violation | 2012 | $10,800 |
| MATLAB, INC. | | | workplace safety or health violation | 2013 | $6,738 |
| MATL GROUP CO. CORP. | | | workplace safety or health violation | 2019 | $12,934 |
| MATICH CORPORATION | | | workplace safety or health violation | 2009 | $8,100 |
| MATICH CORPORATION | | | workplace safety or health violation | 2011 | $11,060 |
| MATICH CORPORATION | | | workplace safety or health violation | 2020 | $22,500 |
| MATIAS TELLEZ | | | workplace safety or health violation | 2023 | $5,358 |
| MATIAS ROOFING | | | workplace safety or health violation | 2017 | $6,519 |
| MATIAS GONZALEZ | | | workplace safety or health violation | 2020 | $7,519 |
| MATIAS GOMEZ LOPEZ | | | workplace safety or health violation | 2019 | $6,820 |
| MATIAS GOMEZ LOPEZ | | | workplace safety or health violation | 2020 | $6,940 |
| MATIAS CHICAS | | | workplace safety or health violation | 2021 | $8,193 |
| MATIAS ALONZO MARTIN | | | workplace safety or health violation | 2018 | $6,000 |
| MATIAS ALONZO MARTIN | | | workplace safety or health violation | 2019 | $13,753 |
| MATIAS ALONZO MARTIN | | | workplace safety or health violation | 2022 | $25,980 |
| MATHIS TIRE AND AUTO | | | workplace safety or health violation | 2014 | $5,141 |
| MATHIS ROOFING LLC | | | workplace safety or health violation | 2011 | $10,000 |
| MATHIS HOME IMPROVEMENTS, INC. | | | workplace safety or health violation | 2011 | $5,900 |
| MATHEWS FRAMING | | | workplace safety or health violation | 2014 | $5,600 |
| MATHEWS FRAMING | | | workplace safety or health violation | 2015 | $11,600 |
| MATHEWS ARCHERY, INC. | | | workplace safety or health violation | 2024 | $29,960 |
| MATHEW'S ELECTRIC INC. | | | workplace safety or health violation | 2014 | $14,000 |
| MATHEW TRAVINO | | | workplace safety or health violation | 2012 | $6,000 |
| MATHEW GODDARD DBA MATT'S TREE SERVICE | | | workplace safety or health violation | 2006 | $5,130 |
| MATHESON TRI-GAS, INC. | Mitsubishi Chemical | chemicals | workplace safety or health violation | 2018 | $8,051 |
| MATHESON TRI-GAS INC | Mitsubishi Chemical | chemicals | workplace safety or health violation | 2012 | $6,000 |
| MATHESON TRI-GAS | Mitsubishi Chemical | chemicals | workplace safety or health violation | 2005 | $12,000 |
| MATHESON CONSTRUCTION INC | | | workplace safety or health violation | 2016 | $8,785 |
| MATHES OF ALABAMA | | | workplace safety or health violation | 2006 | $6,000 |
| MATHERS CONSTRUCTION LLC. | | | workplace safety or health violation | 2023 | $6,776 |
| MATHER'S IMPROVEMENT SERVICE, LTD. | | | workplace safety or health violation | 2018 | $11,604 |
| MATHER'S IMPROVEMENT SERVICE, LTD | | | workplace safety or health violation | 2012 | $5,320 |
| MATHENY WINDOWS & DOORS | | | workplace safety or health violation | 2004 | $6,395 |
| MATEUS CONSTRUCTION INC. | | | workplace safety or health violation | 2022 | $7,200 |
| MATERION TECHNICAL MATERIALS, INC. | Materion | miscellaneous manufacturing | workplace safety or health violation | 2017 | $7,985 |
| MATERION PRECISION OPTICS AND THIN FILM COATINGS, INC. | | | workplace safety or health violation | 2023 | $10,000 |
| MATERION CORPORATION | Materion | miscellaneous manufacturing | workplace safety or health violation | 2022 | $5,800 |
| MATERION BRUSH, INC. | Materion | miscellaneous manufacturing | workplace safety or health violation | 2013 | $7,000 |
| MATERION BRUSH, INC. | Materion | miscellaneous manufacturing | workplace safety or health violation | 2017 | $25,350 |
| MATERION BRUSH, INC. | Materion | miscellaneous manufacturing | workplace safety or health violation | 2018 | $47,117 |
| MATERION BRUSH INC. | Materion | miscellaneous manufacturing | workplace safety or health violation | 2016 | $70,000 |
| MATERION ADVANCED MATERIALS GROUP INC. | Materion | miscellaneous manufacturing | workplace safety or health violation | 2016 | $10,000 |
| MATERION ADVANCED MATERIALS GROUP INC. | Materion | miscellaneous manufacturing | workplace safety or health violation | 2020 | $10,121 |
| MATERIALS TRANSPORTATION COMPANY | | | workplace safety or health violation | 2016 | $7,696 |
| MATERIALS TRANSPORTATION COMPANY | | | workplace safety or health violation | 2019 | $15,942 |
| MATERIALS TRANSPORTATION COMPANY | | | workplace safety or health violation | 2019 | $24,290 |
| MATERIALS SUPPLIES, INC | | | workplace safety or health violation | 2003 | $14,970 |
| MATERIALS SUPPLIES, INC | | | workplace safety or health violation | 2004 | $6,870 |
| MATERIALS PROCESSING CORPORATION | | | workplace safety or health violation | 2014 | $11,025 |
| MATERIALS DIRECT LLC | | | workplace safety or health violation | 2022 | $14,941 |
| MATERIALS ALTERATION COMPANY, LLC. | | | workplace safety or health violation | 2013 | $9,456 |
| MATERIAL SUPPLY INC | | | workplace safety or health violation | 2021 | $11,170 |
| MATERIAL SCIENCES CORPORATION | | | workplace safety or health violation | 2005 | $7,560 |
| MATERIAL SCIENCES CORPORATION | | | workplace safety or health violation | 2009 | $7,000 |
