?- Tetra Pak International SA
- Amcor PLC
- Mondi Group
- Imex Packaging
- Elevate Packaging Inc.
- Kruger Inc.
- Biopak PTY LTD (Duni Group)
- Smurfit Kappa Group PLC
- Berkley International Packaging Limited ?
- Greenpack Limited
- International Paper Company
- Ranpak Holding Corporation