- Chemiquip Industries (Baroda)
- Akshar Precision Tubes Pvt. Ltd. (Baroda)
- Radiant Heat Exchangers Pvt. Ltd. (Bhosari,Pune)
- Gr Engineering Pvt. Ltd. (Tarapur)
- Chem Process Systems Pvt. Ltd. (Ahmedabad)
- Chemy Plants (Mumbai)
- Airfizz Systems
- Qualitas Techno Solutions
- Unique Engineering & Equipment Pvt. Ltd.
- Ars Engineering Pvt. Ltd. (Hadapsar, Pune)
- Madhura Comp. Air Consultants (Thane, Maharashtra)
- Enkay Construction (Baroda)
- Thermax Ltd. (Pune)
- Fintelius Engineering
- M/S. Venkatarama Heat Exchanger Industries
- Techno Process Equipments (India) Pvt. Ltd.
- Precision Equipment Pvt. Ltd.
- Ratnamani Metal & Tubes Ltd.
- Larsen & Toubro Ltd.
- NTPC Ltd.