Zero Waste Energy, LLC is an industry-leading development company specializing in the design, construction, and operation of integrated solid waste and organics processing facilities. Founded in 2009 and incorporated in 2010 in California, the company focuses on maximizing diversion of waste from landfills while generating renewable energy and high-quality compost. Zero Waste Energy uses advanced technologies such as dry anaerobic digestion, in-vessel composting, and integrated sorting systems to convert organic and mixed solid waste into biogas, electricity, vehicle fuel, and soil amendments. Working with municipalities and private partners, the company has delivered large-scale projects like the San Jose commercial organics facility and other innovative plants in North America. By combining engineering, operations, and project development expertise, Zero Waste Energy helps cities and companies meet regulatory requirements, climate goals, and sustainability targets while improving the overall efficiency of waste management systems.

BiofuelCircle is a Pune-based cleantech startup founded in June 2020 that operates India’s first digital platform for biomass and biofuel supply chain management, marketplace transactions, and logistics. Biofuel Circle The platform connects farmers, rural enterprises, biomass processors, and industrial buyers to enable efficient aggregation, trading, and distribution of agricultural residue and other biofuels, helping replace fossil fuels and reduce carbon emissions. Biofuel Circle BiofuelCircle’s marketplace supports dynamic price discovery, logistics services, financing facilitation, and quality assurance to create a circular economy around agro-waste. Biofuel Circle The company has expanded operations across multiple Indian states, built rural biomass banks, and engaged thousands of farmers to prevent stubble burning and convert crop residues into value-added products such as fermented organic manure. BioEnergy Times +1 With backing from investors including Spectrum Impact, Better Capital, and Mumbai Angels, BiofuelCircle is scaling physical and digital infrastructure to integrate rural producers into the bioenergy value chain. BioEnergy Times

Bioen Sustainable Solutions Pvt. Ltd. is a Bengaluru-based clean-tech company focused on bioenergy, sustainable waste management, and waste-to-energy conversion using proprietary biomethanation technologies. Founded in 2020, Bioen applies over a decade of expertise in anaerobic digestion and biogas systems developed with partners including experts from the Indian Institute of Science. Its technologies treat urban solid waste and agricultural residues at the source, significantly reducing landfill burden while producing renewable biogas that can be purified, compressed, bottled, or converted into electricity or heat. Bioen’s product suite includes biomethanation plants, biogas purification systems, biogas compressors, storage systems, biogas gensets, and high-efficiency biogas burners. These solutions are deployed with societies, municipalities, industrial clients, and corporate partners in India and overseas, helping cut greenhouse gas emissions and dependency on fossil fuels. With a vision to bridge the energy gap through bioenergy, Bioen supports circular waste use and sustainable energy generation.

Buyofuel is a Bengaluru-based clean energy startup founded in 2016 that operates as a digital marketplace for biofuels and biomass-based energy solutions. The company connects verified biomass suppliers with industrial and commercial fuel buyers, enabling seamless sourcing of sustainable fuels such as briquettes, pellets, bio-coal, and agricultural residue. By digitizing procurement and logistics, Buyofuel helps industries transition away from coal and furnace oil while ensuring cost efficiency and fuel reliability. Its platform simplifies price discovery, supplier verification, quality assurance, and delivery coordination. Buyofuel also supports rural livelihoods by creating demand for agricultural waste, reducing open burning, and promoting circular energy use. The company plays a key role in accelerating India’s clean energy transition by making biomass fuels accessible, scalable, and commercially viable for businesses.

Mainspring Energy is a cutting-edge power solutions company revolutionizing clean electricity generation with its fuel-flexible Linear Generator technology. Unlike conventional engines or fuel cells, their generators convert linear motion into electricity with high efficiency and near-zero NOx emissions. The system operates on various fuels, including natural gas, biogas, and hydrogen, making it adaptable for different industries. Mainspring’s technology seamlessly integrates with renewable energy sources, enhancing microgrid resilience and supporting sustainable energy transitions. Their solutions serve commercial, industrial, and utility-scale applications, including data centers, EV charging, and biogas projects. The company's ability to provide fast on/off capabilities, load tracking, and black start functions makes its technology ideal for modern power systems. Recognized with the Bloomberg New Energy Finance (BNEF) Pioneers award, Mainspring Energy continues to expand, including establishing a new manufacturing facility in Pennsylvania. Their innovations drive a cleaner, more reliable, and cost-effective energy future.