Reliance Group, an offshoot of the Group founded by Shri Dhirubhai H Ambani (1932-2002), ranks among India’s top three private sector business houses in terms of net worth. The group has business interests that range from telecommunications (Reliance Communications Limited) to financial services (Reliance Capital Ltd) and the generation and distribution of power (Reliance Infrastructure Limited).

Reliance Group’s flagship company, Reliance Communications, is India's largest private sector information and communications company, with over 100 million subscribers. It has established a pan-India, high-capacity, integrated (wireless and wireline), convergent (voice, data and video) digital network, to offer services spanning the entire infocomm value chain.

Other major group companies — Reliance Capital and Reliance Infrastructure — are widely acknowledged as the market leaders in their respective areas of operation.