Aquatic Enterprises INC | Seattle | WA | Nonmetallic Mineral Product Manufacturing327215 | — | ● ACTIVE |
| CGCertainteed Gypsum Manufacturing | Seattle | WA | Nonmetallic Mineral Product Manufacturing327420 | — | ◐ LIKELY ACTIVE |
| LCLafarge Cement CO - Seattle Facility | Seattle | WA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| APAir Products Mfg CORP Sea | Seattle | WA | Nonmetallic Mineral Product Manufacturing327213 | — | ◐ LIKELY ACTIVE |
| GNGlacier Northwest East Marginal Way | Seattle | WA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSCadman Seattle INC | Seattle | WA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GNGlacier Nw Reichhold Mtca | Seattle | WA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| CCertainTeed | Seattle | WA | Nonmetallic Mineral Product Manufacturing327420 | 100-499 | ◐ LIKELY ACTIVE |
| HPHM PNW- Seattle RMC | Seattle | WA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| PSPreston Singletary, INC | Seattle | WA | Nonmetallic Mineral Product Manufacturing327212 | — | ◐ LIKELY ACTIVE |
| AGAsh Grove Cement Company-seattle | Seattle | WA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| CWCourt Walker LLC | Seattle | WA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| CWCourt Walker LLC | Seattle | WA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| CWCourt Walker LLC | Seattle | WA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| GGlassybaby | Seattle | WA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| GTGranite Transformations of Kin | Seattle | WA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| IMIcon Materials | Seattle | WA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| NINorthwestern Industries | Seattle | WA | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| PEPioneer Enamel Manufacture | Seattle | WA | Nonmetallic Mineral Product Manufacturing327112 | — | ◇ UNVERIFIED |
| SPSeattle Pottery Supply | Seattle | WA | Nonmetallic Mineral Product Manufacturing327112 | — | ◇ UNVERIFIED |
| SRStrong Running Inc. | Seattle | WA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| SISurplus Items INC | Seattle | WA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| YTYu Tang Ceramics LLC | Seattle | WA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |