| Past National Metal/Nonmetal Overall Champions |
| Year
| Company
| Team Name
| State
|
| 2020 |
The 2020 National M/NM Contest was cancelled by MSHA due to the COVID-19 pandemic |
| 2018 |
Ciner Wyoming |
Ciner Blue |
WY |
| 2016 |
Newmont Mining Corporation |
Newmont Carlin |
NV |
| 2014 |
Washington TRU-Solutions |
WIPP Red |
NM |
| 2013 |
Newmont Mining Corporation |
Carlin |
NV |
| 2012 |
The 2012 National M/NM Contest was cancelled by MSHA |
| 2010 |
Solvay Chemicals Inc. |
Silver |
WY |
| 2008 |
FMC Corporation |
FMC Red |
WY |
| 2006 |
Barrick Goldstrike Mines Inc. |
Barrick Gold |
NV |
| 2004 |
Westinghouse TRU-Solutions |
WIPP Silver |
NM |
| 2002 |
Westinghouse TRU-Solutions |
WIPP Silver |
NM |