| MATERIAL SCIENCES CORPORATION | | | workplace safety or health violation | 2009 | $7,000 |
| MATERIAL SCIENCES CORPORATION | | | workplace safety or health violation | 2009 | $7,000 |
| MATERIAL SCIENCES CORPORATION | | | workplace safety or health violation | 2017 | $15,058 |
| MATERIAL SCIENCES CORPORATION | | | workplace safety or health violation | 2018 | $5,432 |
| MATERIAL RECOVERY & TRANSFER LLC | | | workplace safety or health violation | 2015 | $5,280 |
| MATERIAL HANDLING SYSTEMS, INC./MHS TECHNICAL SERVICES, INC. | Thomas H. Lee Partners | private equity (including portfolio companies) | workplace safety or health violation | 2016 | $225,000 |
| MATERIAL HANDLING SYSTEMS, INC./MHS TECHNICAL SERVICES, INC. | Thomas H. Lee Partners | private equity (including portfolio companies) | workplace safety or health violation | 2016 | $10,000 |
| MATERIAL HANDLING SYSTEMS, INC. | Thomas H. Lee Partners | private equity (including portfolio companies) | workplace safety or health violation | 2014 | $9,800 |
| MATERIAL HANDLING SYSTEMS, INC. | Thomas H. Lee Partners | private equity (including portfolio companies) | workplace safety or health violation | 2014 | $7,700 |
| MATERIAL HANDLING SYSTEMS, INC. | Thomas H. Lee Partners | private equity (including portfolio companies) | workplace safety or health violation | 2015 | $9,000 |
| MATERIAL HANDLING SYSTEMS, INC. | Thomas H. Lee Partners | private equity (including portfolio companies) | workplace safety or health violation | 2017 | $11,520 |
| MATERIAL HANDLING SYSTEMS, INC. | Thomas H. Lee Partners | private equity (including portfolio companies) | workplace safety or health violation | 2019 | $7,956 |
| MATERIAL HANDLING SYSTEMS, INC. | Thomas H. Lee Partners | private equity (including portfolio companies) | workplace safety or health violation | 2020 | $10,796 |
| MATERIAL HANDLING EQUIPMENT ERECTOR'S, INC. | | | workplace safety or health violation | 2005 | $8,200 |
| MATERIAL HANDLING COMPONENTS (FABRICATION SHOP) | | | workplace safety or health violation | 2012 | $5,200 |
| MATERIAL DIFFERENCE TECHNOLOGIES, LLC | | | workplace safety or health violation | 2022 | $25,428 |
| MATERIAL DIFFERENCE TECHNOLOGIES, LLC | | | workplace safety or health violation | 2022 | $12,714 |
| MATERIAL DELIVERY, INC. | | | workplace safety or health violation | 2006 | $5,625 |
| MATERIAL CONTROL, INC. DBA COTTERMAN CO. | | | workplace safety or health violation | 2023 | $32,262 |
| MATERIAL CONTROL, INC. | | | workplace safety or health violation | 2014 | $9,300 |
| MATERIAL CONTROL SYSTEMS, INC. | | | workplace safety or health violation | 2015 | $63,000 |
| MATERIAL CONTROL SYSTEMS, INC. | | | workplace safety or health violation | 2022 | $17,500 |
| MATERIAL CONTROL SYSTEMS INC. | | | workplace safety or health violation | 2019 | $7,800 |
| MATERIAL CONTROL SYSTEMS INC | | | workplace safety or health violation | 2019 | $6,000 |
| MATERIAL CONTROL INC. DBA COTTERMAN COMPANY | | | workplace safety or health violation | 2016 | $5,360 |
| MATERIA, INC | | | workplace safety or health violation | 2017 | $6,845 |
| MATER CONSTRUCTION CORPORATION | | | workplace safety or health violation | 2023 | $8,000 |
| MATEO ZAPATA | | | workplace safety or health violation | 2021 | $5,852 |
| MATEO RAFAEL ESCOBEDO VAZQUEZ | | | workplace safety or health violation | 2015 | $8,400 |
| MATEO NINO ROOFING | | | workplace safety or health violation | 2016 | $6,413 |
| MATEO MOVAR | | | workplace safety or health violation | 2022 | $8,702 |
| MATEO LOPEZ | | | workplace safety or health violation | 2011 | $7,200 |
| MATEO HERNANDEZ | | | workplace safety or health violation | 2023 | $8,706 |
| MATEO GUZMAN | | | workplace safety or health violation | 2023 | $10,500 |
| MATEO GASCA | | | workplace safety or health violation | 2013 | $7,480 |
| MATENAER CORPORATION | | | workplace safety or health violation | 2016 | $6,000 |
| MATENAER CORPORATION | | | workplace safety or health violation | 2017 | $6,000 |
| MATEC INSTRUMENT COMPANIES, INC. | | | workplace safety or health violation | 2016 | $16,450 |
| MATEC INSTRUMENT COMPANIES, INC. | | | workplace safety or health violation | 2016 | $13,095 |
| MATCOR METAL FABRICATION, INC. | | | workplace safety or health violation | 2011 | $7,000 |
| MATCOR METAL FABRICATION, INC. | | | workplace safety or health violation | 2018 | $60,976 |
| MATCOR METAL FABRICATION, INC. | | | workplace safety or health violation | 2019 | $9,280 |
| MATCOR METAL FABRICATION, INC. | | | workplace safety or health violation | 2023 | $6,697 |
| MATCOR METAL FABRICATION (WELCOME) INC. | | | workplace safety or health violation | 2022 | $17,300 |
| MATCOR METAL FABRICATION (WELCOME) INC. | | | workplace safety or health violation | 2022 | $7,000 |
| MATCOR METAL FABRICATION (ILLINOIS) INC. | | | workplace safety or health violation | 2010 | $5,000 |
| MATCOR METAL FABRICATION (ILLINOIS) INC. | | | workplace safety or health violation | 2018 | $7,000 |
| MATCOR AUTOMOTIVE INC | | | workplace safety or health violation | 2011 | $23,440 |
| MATCO ELECTRIC CORPORATION | | | workplace safety or health violation | 2024 | $17,630 |
| MATCO ELECTRIC CORP. | | | workplace safety or health violation | 2012 | $5,040 |
| MATCHMASTER DYEING & FINISHING INC | | | workplace safety or health violation | 2015 | $17,885 |
| MATCHMASTER DYEING & FINISHING INC | | | workplace safety or health violation | 2019 | $5,000 |
| MATCHMASTER DYEING & FINISHING INC | | | workplace safety or health violation | 2019 | $12,000 |
| MATCHLESS-UNITED COMPANIES, INC. | | | workplace safety or health violation | 2005 | $6,300 |
| MATCHLESS VALVE COMPANY | | | workplace safety or health violation | 2014 | $10,000 |
| MATAROZZI-PELSINGER BUILDERS, INC. | | | workplace safety or health violation | 2001 | $10,900 |
| MATANUSKA-SUSITNA BOROUGH SCHOOL DISTRICT | | | workplace safety or health violation | 2022 | $11,162 |
| MATANUSKA-SUSITNA BOROUGH SCHOOL DISTRICT | | | workplace safety or health violation | 2022 | $6,216 |
| MATANUSKA TELEPHONE AUTHORITY | | | workplace safety or health violation | 2024 | $34,511 |
| MATANUSKA SUSITNA BOROUGH DES | | | workplace safety or health violation | 2007 | $11,700 |
| MATANUSKA ELECTRIC ASSOCIATION INCORPORATED | | | workplace safety or health violation | 2000 | $16,450 |
| MATALCO USA LLC | | | workplace safety or health violation | 2023 | $9,844 |
| MATALCO US, INC | | | workplace safety or health violation | 2011 | $12,600 |
| MATALCO US, INC | | | workplace safety or health violation | 2014 | $80,010 |
| MATAGRANO INC. | | | workplace safety or health violation | 2023 | $23,100 |
| MATAGORDA ISLAND, INC. | | | workplace safety or health violation | 2024 | $11,430 |
| MATA'S PAVING & SEALCOATING | | | workplace safety or health violation | 2014 | $8,400 |
| MATA'S CONSTRUCTION LLC | | | workplace safety or health violation | 2020 | $5,100 |
| MATA'S CONSTRUCTION | | | workplace safety or health violation | 2023 | $8,706 |
| MATA'S CARPENTRY INC. | | | workplace safety or health violation | 2011 | $10,000 |
| MATA MASONRY LLC | | | workplace safety or health violation | 2019 | $8,000 |
| MATA CONSTRUCTION, LLC | | | workplace safety or health violation | 2021 | $6,400 |
| MATA CONSTRUCTION LLC | | | workplace safety or health violation | 2023 | $12,500 |
| MAT-SU VALLEY MEDICAL CENTER LLC | Community Health Systems | healthcare services | workplace safety or health violation | 2024 | $7,000 |
| MAT-SU SENIOR SERVICES ADULT DAY SERVICES | | | workplace safety or health violation | 2019 | $11,934 |
| MAT-SU REGIONAL MEDICAL CENTER | | | workplace safety or health violation | 2016 | $9,700 |
| MAT-SU DENTAL CENTER INC. | | | workplace safety or health violation | 2019 | $10,228 |
| MAT LOGISTICS LLC, MIDWEST AIR TECHNOLOGIES INC. | | | workplace safety or health violation | 2019 | $7,800 |
| MAT INDUSTRIES, LLC | | | workplace safety or health violation | 2022 | $6,400 |
| MAT INDUSTRIES LLC DBA SANBORN MANUFACTURING CO | | | workplace safety or health violation | 2016 | $5,400 |
| MAT HOLDINGS, INC. | | | workplace safety or health violation | 2015 | $5,610 |
| MAT HOLDINGS INC. DBA MIDWEST AIR TECHNOLOGIES | | | workplace safety or health violation | 2013 | $18,280 |
| MAT CV BRAKING COMPONENTS, LLC | | | workplace safety or health violation | 2020 | $9,716 |
| MASTRONARDI PRODUCE-USA, INC. | | | workplace safety or health violation | 2022 | $12,415 |
| MASTRONARDI PRODUCE | | | workplace safety or health violation | 2015 | $5,050 |
| MASTRIA COLLISION CENTER | | | workplace safety or health violation | 2004 | $10,325 |
| MASTRIA COLLISION CENTER | | | workplace safety or health violation | 2006 | $6,240 |
| MASTRANGELO AND SONS, LLC | | | workplace safety or health violation | 2015 | $6,160 |
| MASTRANGELO & SONS ROOFING, LLC | | | workplace safety or health violation | 2021 | $11,118 |
| MASTIC HOME EXTERIORS | | | workplace safety or health violation | 2016 | $6,000 |
| MASTIC HOME EXTERIORS | | | workplace safety or health violation | 2020 | $5,870 |
| MASTIC HOME EXTERIORS | | | workplace safety or health violation | 2022 | $17,455 |
| MASTERWORK | | | workplace safety or health violation | 2005 | $19,600 |
| MASTERSON CONSTRUCTION | | | workplace safety or health violation | 2000 | $23,100 |
| MASTERSCAPES, INC. | | | workplace safety or health violation | 2022 | $7,831 |
| MASTERS TUXEDO | | | workplace safety or health violation | 2001 | $12,000 |
| MASTERS ROOFING, LLC | | | workplace safety or health violation | 2016 | $6,519 |
| MASTERS ROOFING, INC., AKA, RUDY'S ROOFING, INC. | | | workplace safety or health violation | 2016 | $10,690 |
| MASTERS ROOFING, INC. | | | workplace safety or health violation | 2015 | $5,200 |
| MASTERS OF PLASTER, INC. | | | workplace safety or health violation | 2011 | $6,000 |
| MASTERS OF DECOR INC. | | | workplace safety or health violation | 2008 | $7,050 |
