| Manufacturer Name | File Extension |
Reserved NFRC ID Block |
|
| Start ID | End ID | ||
| 3M Corporation | mmm | 2700 | 2799 |
| AFG Industries | afg | 700 | 1099 |
| Architectural Glass and Aluminum | AGA | 600 | 649 |
| Asahimas | amg | 1200 | 1299 |
| ATOFINA Chemicals, Inc. | ato | 2600 | 2699 |
| Bekaert Specialty Films, LLC | bsf | 200 | 299 |
| Cardinal IG | cig | 2000 | 2199 |
| China Southern Glass (CSG) | CSG | 1600 | 1659 |
| CPFilms Inc. | cpf | 2500 | 2599 |
| Cytec Surface Specialties | ucb | 2400 | 2499 |
| DuPont | dup | 1100 | 1199 |
| Energy Saving Products of FL | ESP | 2800 | 2899 |
| Euroglas GmbH | EGS | 6700 | 6849 |
| Film Technologies International, Inc. | FTI | 7050 | 7099 |
| G.James Australia | gja | 5500 | 5999 |
| General Electric Company | gec | 3500 | 3599 |
| Generic | dat | 100 | 199 |
| George Fether and Co | FET | 1400 | 1499 |
| Glas Trösch AG | GTS | 6850 | 6999 |
| GlassLam | GLM | 3700 | 3799 |
| GLAVERBEL S.A. | gvb | 4200 | 4599 |
| GSA | GSA | 3800 | 3849 |
| Guardian | grd | 3000 | 3499 |
| Guardian Europe | gre | 11500 | 11999 |
| Imperial/Sicotherm | IMP | 3900 | 3999 |
| INTERPANE GLAS INDUSTRIE AG | ipe | 7100 | 7199 |
| Interpane U.S. | int | 7500 | 7999 |
| Oldcastle Glass® | OGI | 300 | 349 |
| Optics5 | op5 | 30000 | 99999 |
| PFG Building Glass | PFG | 4600 | 4799 |
| PGT Industries | pgt | 2200 | 2399 |
| Pilkington | pgl | 4000 | 4199 |
| Pilkington Australia Limited | bpa | 9700 | 9799 |
| Pilkington North America | LOF | 9800 | 9999 |
| PPG Industries | ppg | 5000 | 5499 |
| SAGE Electrochromics, Inc. | SAG | 1200 | 1249 |
| Saint-Gobain Glass | SGG | 11000 | 11499 |
| Sekisui Chemical Co., Ltd. | sek | 8100 | 8199 |
| SHANGHAI YAOHUA PILKINGTON GLASS CO.,LTD | syp | 8200 | 8599 |
| Sketch Incorporated of Japan | SIJ | 3600 | 3699 |
| Solutia | soi | 1800 | 1999 |
| Southwall Technologies, Inc. | swt | 1500 | 1599 |
| Specialty Coatings & Chemical | scc | 8000 | 8099 |
| TROSIFOL | TRO | 10500 | 10999 |
| User | usr | 30000 | 99999 |
| Viracon | vir | 6000 | 6499 |
| Visionwall | vti | 7000 | 7049 |
| Visteon | vgs | 1300 | 1399 |
| Vitro | vto | 400 | 599 |
| Vitrum Industries, Ltd. | vit | 7400 | 7499 |