- Aavid Kunze GmbH (Boyd Corporation)
- AI Technology Inc.
- Appvion Inc.
- Climator Sweden AB
- Cosella-Dorken Products Inc.
- Croda International PLC
- Cryopak A TCP Company
- Datum Phase Change Ltd
- Entropy Solutions LLC
- Henkel AG & Co. KGAA
- Kaplan Energy
- Laird Technologies
- Microtek Laboratories Inc.
- National Gypsum Company
- Outlast Technologies LLC
- Parker Hannifin Corporation
- PCM Products Ltd
- Phase Change Energy Solutions Inc. (PCES)
- Phase Change Products Pty Ltd (PCP)
- Pluss Polymers Pvt Ltd
- Rubitherm Technologies Ltd
- Schoeller Textiles AG
- Shenzhen Aochuan Technology Co. Ltd
- Shin-Etsu Chemical Co. Ltd
- Sonoco Thermosafe (SON)