The cleantech sector is witnessing a surge of innovation, with startups developing solutions that address environmental challenges while promoting sustainability. Tamil Nadu Global Startup Summit (TNGSS) 2025 showcased several such startups making significant strides in this domain. Here’s a curated list of the most promising cleantech startups to watch.

Generation-One Saver Pollution Control Pvt Ltd
Generation-One Saver Pollution Control specialize in advanced air pollution control systems designed to capture and convert harmful industrial emissions into breathable oxygen, utilizing a unique blend of plants and solvents. Their systems incorporate automation and IoT technology to analyze industrial smoke content, select appropriate plants, and optimize pollutant absorption, ensuring effective emission control.
Stall No: B202, Hall G

Plugzmart
Plugzmart offers a comprehensive range of EV charging technologies, including AC and DC chargers, catering to various electric vehicle needs. Their ‘Relay’ platform enhances EV charging interoperability across networks without requiring full adoption of the complex OCPI protocol, facilitating seamless communication between different EV charging networks.
Stall No: C12, Hall D

Phycosol Ecotech Pvt Ltd
Phycosol Ecotech offers tailored microalgae solutions for industrial wastewater treatment and CO₂ sequestration, helping industries tackle key environmental challenges. They provide contract research services to develop new algae-based products, enhancing the efficiency and effectiveness of wastewater remediation.
Stall No: A141, Hall D

Bhaskara Engineering Services Pvt Ltd
Bhaskara Engineering Services is committed to the renewable energy sector, specializing in designing wind-solar hybrid energy systems for standalone applications, thereby contributing to reducing carbon footprints. They offer a range of engineering services, including structural fabrication and installation, to support the implementation of renewable energy projects.
Stall No: B138, Hall D

DFB Natural Things Private Limited
DFB Natural Things operates in the consumer electronics and durables sector, driving industry innovation with a focus on sustainable products. They emphasize sustainable manufacturing practices, aiming to reduce environmental impact through eco-friendly production processes.
Stall No: B211, Hall G

Orcci Technologies LLP
Orcci Technologies specializes in helping businesses achieve their environmental goals by offering solutions such as biomethanation plants, composting machines, and ESG & waste audits. They implement eco-friendly biogas technology to efficiently convert organic waste into valuable energy, enhancing energy efficiency and aligning with green audit requirements.
Stall No: B175, Hall D

KARDLE Industries Private Limited
KARDLE Industries is a climate tech firm focused on capturing greenhouse gas pollutants, aiming to make carbon capture accessible and drive a net-zero economy. They utilize membrane-based technology contributing to cleaner air and reduced emissions.
Stall No: B162, Hall D

Matterless Technologies OPC Private Limited
Matterless Technologies focuses on developing innovative solutions that promote sustainability and environmental conservation. They engage in the development of products that are designed to have minimal environmental impact, aligning with the principles of green innovation.
Stall No: A88, Hall D

Sustainabyte Technologies Private Limited
Sustainabyte Technologies offers technology solutions aimed at promoting sustainability across various sectors. They provide services related to environmental impact assessment, helping organizations understand and mitigate their environmental footprint.
Stall No: A133, Hall D

SustainWorld Pvt Ltd
SustainWorld specializes in providing environmental solutions that address various ecological challenges. They assist organizations in implementing sustainable practices, contributing to environmental conservation and resource efficiency.
Stall No: B165, Hall D