Reliance Industries Limited (RIL) is a prominent Indian multinational conglomerate based in Mumbai, founded in 1958 by Dhirubhai Ambani. Initially a small trading firm, RIL has grown into India's largest private sector company by market capitalization and revenue. The company operates across various sectors, including energy, petrochemicals, telecommunications, retail, and media.

RIL's energy and petrochemical division includes the world's largest refinery in Jamnagar, Gujarat, producing a wide range of products such as synthetic fibers and plastics. Through its subsidiary Jio Platforms, RIL has established a leading 4G broadband network, offering mobile telephony and digital services. In retail, Reliance Retail serves millions of customers with grocery stores and online platforms. The company also invests in media and entertainment, alongside new initiatives in renewable energy and healthcare, showcasing its commitment to innovation and sustainability.