| No. | Nom del fabricant EPS | Rànquing com a novembre de 2014 | Lloc web |
| 1 | Styopek | 18.20% | https://styropek.com/ |
| 2 | Corporació de productes d’escuma | 14.40% | https://www.fpcfoam.com/ |
| 3 | Productes d’escuma de Michigan | 13.30% | https://michiganfoam.com/ |
| 4 | Styrotech, Inc. | 10.90% | https://www.styrotech.com/ |
| 5 | Foamcraft USA, LLC | 9.50% | https://www.foamcrafsa.net/ |
| 6 | Jiangsu Sunkaier Industrial Technology Co., Ltd. | 5.70% | https://www.sunkaier.com/ |
| 7 | Kraton Corporation | 5.30% | https://kraton.com/ |
| 8 | Idemitsu Kosan Co., Ltd. | 5.20% | https://www.idemitsu.com/en/index.html |
| 9 | Storopack | 5.00% | https://www.storopack.us/ |
| 10 | Chi Mei Corp. | 4.60% | https://www.chimeicorp.com/ |
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