- Indian Oil Corporation Ltd.
- Bharat Petroleum Corporation Ltd.
- Hindustan Petroleum Corporation Ltd.
- Hindustan Colas Ltd.
- Executive Engineer, R & B Mehsana.
- Executive Engineer, R & B Patan.
- Tinna Overseas Ltd.
- Punj Lloyd Ltd.
- Gujarat Ambuja Cement Ltd.
- Ahmedabad Muni Corpo.