| MEMaier Electronics, INC. | Manchester Center | VT | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MOMark Optics INC | Santa Ana | CA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MGMarquez Glass | Harlingen | TX | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MHMatthew Hayes | San Francisco | CA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MMMetro Mailing Service INC Dba Metro Print and Mail Solutions | Sacramento | CA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MGMid-American Glass, Inc. | Davenport | IA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
 Minneapolis Glass CO | Minneapolis | MN | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MIModerustic INC | Rancho Cucamonga | CA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MCMo-sci Corporation | Rolla | MO | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MFMRBBB Futures Glass LLC | Allentown | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MGMR Glass Tempering LLC | Brooklyn | NY | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MWMunn Works, LLC | Mount Vernon | NY | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| NTNashville Tempered Glass Corporation | Hendersonville | TN | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| NANdk America INC | Belvidere | IL | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| NFNikkin Flux Corporation | Edwardsville | IL | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| NWNikolas Weinstein Studios, Inc | Long Island City | NY | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| NWNikolas Weinstein Studios INC. | San Francisco | CA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| NTNy Tempering LLC | Plainview | NY | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| NGNzilani Glass Conservation INC | Oakland | CA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| OSO'brien Stained Glass CO INC | Rollingstone | MN | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| OSOceana Stained Glass | San Mateo | CA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| OGOcean Glass & Mirror Co., INC. | Lowell | MA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| OSOceanic Systems INC | Dallas | TX | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| OMOhio Mirror Technologies, INC. | Paulding | OH | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| OGOlathe Glass Company, Inc. | Olathe | KS | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| OBOldcastle Buildingenvelope | Tampa | FL | Leather and Allied Product Manufacturing316110 | — | ◇ UNVERIFIED |
| OBOldcastle Buildingenvelope, INC North | North Miami Beach | FL | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| OBOldcastle Buildingenvelope INC South | Miami | FL | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| OTOld Town Fiberglass Dba Fiberglass Fabri | Orange | CA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| OTOver the Mountain Glass, INC. | Pelham | AL | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PTParagon Tempered Glass, LLC | Antwerp | OH | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PCPatn Capital LLC | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PCPATN Captial LLC | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PTP&c Tempered Glass, LLC | Medley | FL | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PRPearl River Glass Studio INC. | Jackson | MS | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PTPebble Technology International | Manteca | CA | Chemical Manufacturing325181 | — | ◇ UNVERIFIED |
| PMPerformance Manufacturing CO | Franklin | TN | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PIPgt Industries, INC. | Venice | FL | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PAPgw Auto Glass, LLC | Madison | WI | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PAPhotop Advanced Coating Center | Santa Rosa | CA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PIPotters Industries, LLC Kingman Facility | Kingman | AZ | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PHPpg Huntsville | Huntsville | AL | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PGPrecise Glassworks Ii LLC | Landisville | NJ | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PGPrecision Glass, LLC | Fort Wayne | IN | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PGPrecision Glass Windows and Doors, LLC | Wichita | KS | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PAPremier Aquarium Service, Inc. | St. Louis Park | MN | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PMPremier Mailing, INC. | Paramount | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| PCPrestige Custom Mirror & Glass, INC. | Waltham | MA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PRPrism Research Glass, INC. | Raleigh | NC | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PGPrl Glass Sysyems INC | City of Industry | CA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
