L&T bagged the award for promoting the concept of ethics in business, while HPCL got it for good corporate governance.
i-flex received the brand equity award for its flagship banking solution 'Flexcube'.
PHDCCI's entrepreneurship award for 2004 went to Havell's India chairman Qimat Rai Gupta.
L&T board member J P Nayak, HPCL chairman M B Lal and i-flex chief Rajesh Hukku received the awards from the Defence Minister Pranab Mukherjee at PHDCCI's 99th annual general session in New Delhi.