| DMDriftwood Marina & Storage, INC. | Marathon | FL | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| MBMarathon Bio-diesel | Marathon | FL | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MBMarathon Boat Yard | Marathon | FL | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| MIMarathon Industrial Finishing LLC | Marathon | WI | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| NWNorthview Window & Door, LLC | Marathon | WI | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| AMAh Machines, LLC | Marathon | WI | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| ABAutomated Biomass Systems LLC | Marathon | NY | Machinery Manufacturing333243 | — | ◇ UNVERIFIED |
| CMCounty Materials Corporation | Marathon | WI | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| FFennocasa | Marathon | FL | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| HKHog Key Marine, INC. | Marathon | FL | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| MFMarathon Feed and Grain, LLC | Marathon | WI | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| MYMarathon Yard | Marathon | FL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MWMarth Wood Shavings Supply INC | Marathon | WI | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| MHMenzner Hardwoods CO. | Marathon | WI | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| NBNova Biotechnologies LLC | Marathon | FL | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| PFPoole Fisheries, INC | Marathon | FL | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| SBShelter Bay Marina and Storage | Marathon | FL | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| TFTwin Forest Products, LLC | Marathon | WI | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| TJTwo J's Signs, INC. | Marathon | FL | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
