Integrated environmental management and sustainability solutions, municipal solid waste (MSW), industrial and hazardous waste, bio-medical waste, recycling (plastic, e-waste, paper, metals), waste-to-energy (WTE), and construction & demolition (C&D) waste management, are the field Re Sustainability Limited (formerly Ramky Enviro) leads as Asia's leading provider. Founded in 1994 and headquartered in Hyderabad, and backed by KKR (60% stake), it runs more than 99 facilities across India, Singapore, and the Middle East, manages 7 million tons of waste a year, serves 35,000 customers, and employs more than 20,000 professionals. Notable projects include a 19.8 MW WTE plant in Hyderabad and Chennai's waste-collection system with 850 electric vehicles. Certified to ISO 9001, 14001, and 45001, the company uses IoT and automated technologies to drive circular-economy goals, achieving impacts such as 2 million trees saved and more than 27 MW of electricity generated.