| World Packaging Organization | Global non-profit federation of packaging organizations |
| Institute of Packaging Professionals | U.S. professional organization |
| Society of Plastics Engineers | Polymer engineering professional society. |
| Technical Assoc. of Pulp and Paper Industry | Mainly a paper society, but the Polymer, Laminations and Coatings Div. has a strong packaging relationship |
| CSIRO Australian Industrial Research Organization | Scientific and industrial research lab in Austrailia |
| RAPRA Rubber and Plastics Research - UK | Plastics and rubber research. |
| PIRA International- Industrial Research - UK | Packaging, paper and printing contract research. |
| Dupont Packaging | Packaging pages of Dupont Industrial Polymers - Surlyn, nylon, tie layers, other specialties |
| Equistar Chemicals | polyethylenes |
| Chevron Phillips Chemical Company | polyethylenes, polypropylene, K-resin, etc. A new joint venture. |
| Eastman Chemicals | Many specialty polymers, polyesters, and extrusion coating PE's |
| Montell | polypropylene |
| BASF | styrene |
| Dow Chemical | polyethylenes, styrene, and many specialty polymers |