Plastic Resin Manufacturers
| Green Valley Co Llc (Ramseur, NC) |
| Greenville Products Inc (Greenville, AL) |
| Gregory Bolton (Rochester, NH) |
| Griffith Polymers Inc (Tualatin, OR) |
| Grit Guard Inc (Bellefontaine, OH) |
| Guardian Sales (Auburn Hills, MI) |
| Gulf Coast Polymers (Fort Myers, FL) |
| H A Intl (Oregon, IL) |
| H D Fowler Co (Hayden, ID) |
| H Heller & Co Inc (West Harrison, NY) |
| H K Research (Hickory, NC) |
| H K Research West (Rialto, CA) |
| H Muehlstein (Rochester, MI) |
| H Muehlstein & Co Inc (Park Ridge, IL) |
| H Muehlstein & Co Inc (Akron, OH) |
| H Muehlstein Co Inc (Houston, TX) |
| H Sattler Plastics (Corona, CA) |
| Hall's Seamless Flooring (Jefferson, NH) |
| Hancor Inc (Cordele, GA) |
| Hankel Technologies (Olean, NY) |
| HAPCO Inc (Baraboo, WI) |
| Harrington Industrial Plastics (Chino, CA)
Manufacturer |
| Harrington Industrial Plastics (Wilmington, MA) |
| Hastings Plastics Co (Santa Monica, CA) |
| Hawkeye International (Gardena, CA) |
