Felix Industries Ltd. (FELIX.NS) is an India-based environmental engineering and sustainability company that specializes in water treatment solutions; wastewater management systems; solid waste processing technologies; and environmental consulting services. The company offers a comprehensive portfolio of products and services including reverse osmosis plants, effluent treatment plants, sewage treatment plants, zero liquid discharge systems, hazardous waste treatment facilities, and air pollution control equipment; it also provides operation and maintenance services, turnkey project execution, and customized engineering solutions for industrial and municipal clients. Founded in 2011 and headquartered in Vadodara, Gujarat, Felix Industries operates primarily in India with projects across multiple states and serves industries such as chemicals, pharmaceuticals, textiles, power, and food processing. In recent developments, the company secured significant orders for water treatment projects valued at over INR 100 crore in fiscal 2025; expanded its manufacturing capacity through a new facility in Vadodara; and formed strategic partnerships with international technology providers for advanced membrane technologies and IoT-enabled monitoring systems, enhancing its capabilities in sustainable water management amid growing regulatory demands for zero liquid discharge compliance.