| GSGagne & Son LLC | Belgrade | ME | Nonmetallic Mineral Product Manufacturing327331 | — | ● ACTIVE |
New Form Building Systems INC | Bucksport | ME | Nonmetallic Mineral Product Manufacturing327390 | — | ● ACTIVE |
Owen J. Folsom, INC. | Old Town | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ● ACTIVE |
Thurston and Wong LLC | Presque Isle | ME | Nonmetallic Mineral Product Manufacturing327390 | — | ● ACTIVE |
| ACAmerican Concrete Industries | Veazie | ME | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| SCSuperior Concrete | Auburn | ME | Nonmetallic Mineral Product Manufacturing327332 | 20-99 | ◐ LIKELY ACTIVE |
| CFCianbro Fabrication and Coating | Pittsfield | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| DPDragon Products CO - Thomaston | Thomaston | ME | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| MCMga Cast Stone INC | Oxford | ME | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| FCFerraiolo Construction, INC. | Thomaston | ME | Nonmetallic Mineral Product Manufacturing327331 | — | ◐ LIKELY ACTIVE |
| HBHughes Bros., INC. | Hampden | ME | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| MMMorningstar Marble & Granite, Inc. | Topsham | ME | Nonmetallic Mineral Product Manufacturing327991 | 20-99 | ◐ LIKELY ACTIVE |
| POPrecast of Maine | Topsham | ME | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| SCSurface Creations of Maine LLC | Portland | ME | Nonmetallic Mineral Product Manufacturing327111 | 20-99 | ◐ LIKELY ACTIVE |
| WCWardwell Construction and Trucking CORP - Bucksport | Bucksport | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| DPDurastone Precast Incorporated-south Portland | South Portland | ME | Nonmetallic Mineral Product Manufacturing327331 | — | ◐ LIKELY ACTIVE |
| KRKeystone Real Estate Property LLC | Rockland | ME | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| MBMorin Brick CO | Auburn | ME | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| SMSargent Materials | East Machias | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| DPDicaperl Perlite Filter Facility | Thomaston | ME | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| GPGagne Precast Concrete Products, INC. | Veazie | ME | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ 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 |
| SSState Sand & Gravel INC | Belfast | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| WCWardwell Construction and Trucking Corporation | Orland | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BMBOSM Monarch Mountain | Acton | ME | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◐ LIKELY ACTIVE |
| GSGagne & Son Corporate | Belgrade | ME | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
| HCHancock Concrete Plant | Hancock | ME | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| LCLee's Concrete, INC. | Millinocket | ME | Nonmetallic Mineral Product Manufacturing327390 | — | ◐ LIKELY ACTIVE |
| LCLincoln Concrete Plant | Lincoln | ME | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSearsport Concrete Plant | Searsport | ME | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| WGWestbrook Granite Works | Westbrook | ME | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| 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 |
| FSFreshwater Stone and Brickwork INC | Orland | 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 |