| MCMga Cast Stone INC | Oxford | ME | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| SSState Sand & Gravel INC | Belfast | ME | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◇ UNVERIFIED |
| DPDicaperl Perlite Filter Facility | Thomaston | ME | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| GEG. E. Goding & Son INC | Lincoln | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HCHaley Construction INC | Moosehead Junction Twp. | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HRHissong Ready-mix & Aggregates LLC - Eliot | Eliot | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLee's Concrete | Bangor | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LWL & W Concrete | Norridgewock | ME | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| MBMorin Brick Company | Gorham | ME | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RAR. A. Cummings, INC. | Westbrook | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RGRichard Genest Precast Concrete | Sanford | ME | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| SSState Sand & Gravel | Belfast | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| WCWardwell Construction and Trucking Corporation | Orland | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DEDownes Enterprise, LLC | Bucksport | ME | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◇ UNVERIFIED |
| FSFreshwater Stone and Brickwork INC | Orland | ME | Nonmetallic Mineral Product Manufacturing327991 | 20-99 | ◇ UNVERIFIED |
| HHHarpswell House, INC. | Brunswick | ME | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◇ UNVERIFIED |
| JSJc Stone, INC. | Jefferson | ME | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◇ UNVERIFIED |
| LLLunaform LLC | Sullivan | ME | Nonmetallic Mineral Product Manufacturing327112 | 1-19 | ◇ UNVERIFIED |
| NINicmar Industries INC Dba George R Roberts Company | Alfred | ME | Nonmetallic Mineral Product Manufacturing327332 | 20-99 | ◇ UNVERIFIED |
| AAroostacast | Presque Isle | ME | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| ACAuburn Concrete | Fairfield | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BRBlue Rock Industries | Westbrook | ME | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| DPDragon Products Company, INC. | Frenchville | ME | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| EPEdgecomb Potters | Edgecomb | ME | Nonmetallic Mineral Product Manufacturing327112 | — | ◇ UNVERIFIED |
| FSForgotten Stoneworks | Manchester | ME | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| GSGds Services INC. | Bridgton | ME | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| GCGenest Concrete | Biddeford | ME | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| GCGenest Concrete Works INC - Berwick | Berwick | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GPGreenstone Precast, LLC | New Gloucester | ME | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HRHissong Ready-mix & Aggregates, LLC | Westbrook | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HBHughes Bros. INC. | Winterport | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HBHughtes Bros. Ellsworth Concr | Ellsworth | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MSMaine Soapstone Company | Fort Fairfield | ME | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| PPPatriot Partners INC. | Westbrook | ME | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| PSProject Staffing, INC. | Topsham | ME | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| RCRedimix Companies, INC. | Berwick | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RGRockport Granite INC. | Rockport | ME | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| SCScripture's Concrete INC. | Rockport | ME | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| WCWatershed Center for Ceramic | Edgecomb | ME | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |