1. Aalberts N.V.
2. BELIMO Automation AG
3. Building Controls Group
4. Caleffi SpA
5. Danfoss A/S
6. Dwyer Instruments Inc.
7. Emerson Electric Co.
8. Grundfos Holding A/S
9. Honeywell International Inc.
10. IMI Hydronic Engineering International SA
11. Intelligent Building Controls Ltd.
12. Johnson Controls International PLC
13. Oventrop GmbH & Co. KG
14. SAMSON AG
15. Schneider Electric SE
16. Sensata Technologies Inc.
17. Siemens AG
18. Taco Comfort Solutions
19. Uponor North America Inc.
20. Watts Water Technologies Inc.
21. Xylem Inc.