As India’s energy consumption has increased, so too have its environmental investments. According to the Carnegie Endowment for International Peace, 45 percent of India’s energy comes from renewable sources, and the country aims to increase that number substantially by the end of the decade. Climate-friendly policies have contributed significantly to national climate initiatives, but many environmental companies have also played a role by building things like solar panels, wind turbines and energy management software. Below are some of the top environmental companies in Chennai to know.
Top Environmental Companies in Chennai
- Tata Power
- Larsen & Toubro
- SolarSquare
- EarthFokus
- ReGen Powertech
Top Environmental Companies in Chennai
Founded: 1998
Environmental Services: Environmental Testing and Wastewater Treatment
What they do: Hubert Enviro Care Systems runs a specialized environmental testing, monitoring and engineering enterprise. It maintains certified analytical laboratories to conduct air, water and soil quality analysis alongside industrial effluent management studies. HEC’s engineering division also designs wastewater treatment plants, air pollution control devices and environmental monitoring equipment for commercial facilities.
Founded: 1938
Environmental Services: Green Hydrogen Plant Construction, Biofuel Development, Sustainable Infrastructure
What they do: Larsen & Toubro is a multinational conglomerate operating in energy, engineering, manufacturing and technology sectors. The company generates significant revenue from environmental services, including construction of green hydrogen plants, development of sustainable biofuels and infrastructure projects focused on reducing emissions and resource consumption. L&T is one of the largest environmental services firms globally by revenue.
Founded: 2008
Environmental Services: Sustainable Infrastructure Consulting, Pollution Control, Waste Management
What they do: CEMCOT, or Chennai Environmental Management Company of Tanners, operates an environmental engineering consultancy in Chennai that assists government agencies and industrial clients with sustainable infrastructure projects. The firm conducts environmental impact assessments, designs pollution control systems and develops municipal solid waste management strategies. CEMCOT’s team of technical specialists helps facilities adhere to regulatory standards while implementing eco-friendly waste treatment and resource recovery protocols.
Founded: 2014
Environmental Services: Solar Energy Systems Installation
What they do: Solstorm provides renewable energy and clean-technology engineering services. The company designs and installs commercial-scale solar power generation systems while integrating energy storage and carbon-reduction technologies for industrial clients. Solstorm’s technical team provides complete project execution, turning rooftop and land assets into sustainable energy infrastructure.
Founded: 1915
Environmental Services: Renewable Power Generation, EV Charging Networks, Solar Manufacturing
What they do: Tata Power is one of India’s largest energy companies, with over 14 gigawatts (GW) of combined operational generation capacity. Its subsidiary, Tata Power Renewables, holds a 12.3 GW clean energy portfolio across India — spanning operational sites and projects under development — including residential solar, wind farms and EV charging networks. Key recent developments include a 198 MW wind installation in Tamil Nadu and domestic solar cell manufacturing at its TP Solar facility.
Founded: 2018
Environmental Services: Environmental Audits and Compliance Consulting
What they do: EHS 360 Labs offers comprehensive environmental health, safety and regulatory compliance consulting services. The firm conducts environmental audits, risk assessments and hazardous waste management planning for industrial facilities and corporate clients. EHS 360 Labs also design structured management frameworks that help companies meet statutory environmental guidelines and improve operational sustainability.
Founded: 2011
Environmental Services: Environmental Sampling and Pollutant Analysis
What they do: Hiyoshi operates an environmental analysis and research facility in Chennai, applying specialized Japanese environmental technology locally. The laboratory provides advanced testing services for toxic pollutants, dioxins and industrial wastewater parameters to support environmental conservation efforts. The company;s technical personnel conduct regular environmental sampling and offer specialized training to promote sustainable industrial practices in the region.
Founded: 2006
Environmental Services: Wind Turbine and Solar Inverter Manufacturing
What they do: ReGen Powertech manufactures gearless wind turbines and solar inverters for renewable energy generation. Based in Chennai, the company is one of the country’s largest wind energy manufacturers and has expanded into solar power technology, producing multi-megawatt direct-drive turbines and central solar inverters that convert solar energy into usable current.
Founded: 2019
Environmental Services: Smart Water Management, IoT Monitoring, Leak Detection
What they do: EarthFokus develops smart water management software that monitors and reduces water consumption across apartment buildings, industrial facilities, commercial office spaces and other properties. The platform uses IoT sensors to deliver real-time water monitoring and leak detection, helping organizations optimize water use and achieve measurable water and cost savings.
Founded: 2006
Environmental Services: Wind and Biomass Renewable Energy Production
What they do: Orient Green Power is an independent renewable energy producer based in Chennai. The company operates wind farms across Tamil Nadu and Andhra Pradesh with a total capacity of 381.7 MW. Orient Green Power also produces 50 MW of biomass power capacity and has added 9.9 MW of wind capacity.
