1. Atlas Copco AB
2. Baker Hughes Company
3. BITZER K?hlmaschinenbau GmbH
4. Burckhardt Compression AG
5. Carrier Global Corporation
6. Daikin Industries
Ltd.
7. Danfoss A/S
8. Dunham-Bush Holding Bhd
9. Emerson Electric Co.
10. GEA Group AG
11. Hanbell Precise Machinery Co. Ltd.
12. Hangzhou Qianjiang Refrigeration Group Co.Ltd.
13. Hitachi
Ltd.
14. Huayi Compressor Co.Ltd.
15. Hubei Donper Electromechanical Group Co. Ltd
16. Ingersoll Rand Inc.
17. Jiaxipera Compressor Co.Ltd.
18. Johnson Controls International PLC
19. Kirloskar Pneumatic Company Limited
20. Kulthorn Kirby Company Limited
21. LG Corporation
22. Midea Group Co. Ltd.
23. Mitsubishi Heavy Industries
Ltd.
24. Mueller Industries
25. Nidec Corporation
26. Officine Mario Dorin S.p.A.
27. Panasonic Holdings Corporation
28. Robert Bosch GmbH
29. Samsung Electronics Co. Ltd.
30. Siemens AG
31. Tecogen Inc.