Praj Industries Limited is a Pune, India–based process and project engineering company serving the bioenergy, chemicals, and water sectors. It develops proprietary technologies and executes turnkey plants for fuel ethanol (first- and second-generation from molasses, grains, and lignocellulosic biomass), renewable chemicals and materials, compressed biogas, and brewery applications.
For the chemical industry, Praj supplies critical process equipment and systems (such as reactors, columns, heat exchangers, and modular skids) and high‑purity systems for biotech and allied industries. The company also provides industrial wastewater treatment and zero-liquid-discharge solutions for chemical manufacturing sites. Its R&D center, Praj Matrix, supports development of biochemical and thermochemical process technologies, including pathways relevant to sustainable aviation fuel and circular economy applications. Praj is publicly listed in India and delivers projects across multiple geographies through engineering, procurement, and construction (EPC) services with lifecycle support.
