Best Sustainability Tech Companies in Chennai, India
The 133 best Sustainability Tech companies in Chennai, India in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Aptus Value Housing Finance India.
Our analysis of 50 Sustainability Tech companies
$4.2b in tracked funding; 78% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2024.
Ranked: Best Sustainability Tech companies in Chennai
| # | Company | Revenue | Disclosed funding | Revenue YoY | Employees | Founder | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Asirvad Microfinance Provider of micro loans for consumers | $1.2B FY2025 | $2M | +13% | 32,159 | — | — | — |
| 2 | Equitas Microcredit for low income individuals and businesses | $543M FY2022 | $140M | — | 4 | John Alex CEO | — | — |
| 3 | Asirvad microfinance services Provider of microfinance solutions | $324M FY2025 | — | — | 17,714 | — | — | — |
| 4 | Belstar Micro Loans for setting up of micro enterprises based on a SHG model | $251M FY2025 | $139M | +15% | 10,457 | Jayaraman Balakrishnan Chief Executive Officer | WordPressMySQLPHP+20 | 1 partnership · 1 award |
| 5 | Repco Home Provider of affordable housing finance services | $204M FY2025 | $118M | +12% | 1,149 | — | Node.jsTailwind CSSFlowbite+17 | 1 job opening |
| 6 | Aptus Value Housing Finance India Provider of loans for affordable housing | $171M FY2024 | $188M | +25% | 2,918 | Munuswamy Anandan Founder & Managing Director | WordPress Block EditorwpBakeryWordPress+39 | 4 job openings |
| 7 | Svasti Microfinance Institution catering to the urban poor 62Funding top 29%Moat top 29%Product top 32%Tech top 33% All 11 signals ▾Fundingtop 29% Moattop 29% Producttop 32% Techtop 33% Markettop 35% Innovationtop 36% Newstop 38% Fin. healthbottom 49% Talentbottom 49% Growthbottom 48% Globalbottom 39% Funding: Raised $24.3M across 11 rounds · 11 rounds over 16 yrs (0.7/yr) Moat: Top 17% by revenue among 128 tracked Microfinance companies · Editorial + unicorn rating 7/10 rank vs industry peers · Fliar Intelligence Index 62/100 | $30M FY2025 | $24M | -10% | 2,071 | Arunkumar Padmanabhan Co-Founder & CEO | WordPressMySQLPHP+18 | — |
| 8 | Atandra Provider of energy management systems | $25M FY2025 | — | +25% | 483 483 → 326 (-33%) · sector median +16% | Chandrasekaran Sethuraman Co-Founder | WordPressMySQLPHP+18 | 1 job opening · 1 launch |
| 9 | Athenese-Dx Rapid clinical diagnostics products and instruments for infectious diseases | $10M FY2025 | — | +16% | 331 | — | Cart FunctionalityWooCommerceWordPress+36 | — |
| 10 | Indowud Manufacturer of eco-friendly, zero-wood building panels | $3M FY2025 | $157K | +35% | 49 | B Bengani Co-Founder | WordPressMySQLPHP+16 | 1 launch |
| 11 | Modulus Housing Manufacturer of modular, portable, and reusable infrastructure for various sectors 40News top 34%Moat top 37%Innovation top 38%Talent top 38% All 11 signals ▾Newstop 34% Moattop 37% Innovationtop 38% Talenttop 38% Producttop 41% Fundingtop 45% Growthbottom 49% Marketbottom 46% Techbottom 46% Globalbottom 37% Fin. healthbottom 22% News: 4 BI events in 12 mo (of 5 tracked, 1 types) · +300% YoY Moat: Top 24% by revenue among 55 tracked Affordable Housing companies · Editorial + unicorn rating 5/10 rank vs industry peers · Fliar Intelligence Index 40/100 | $3M FY2025 | $8M | -50% | 67 67 → 82 (+22%) · sector median +16% | Gobinath P Co-Founder & COO | WebflowHubSpot ChatHubSpot+16 | 2 job openings · 1 launch |
| 12 | Kriya Developer of health care products for diagnosis and treatment | $3M FY2025 | $4M | +15% | 138 138 → 81 (-41%) · sector median +16% | Anuradha Moturi Founder & CEO | FirebaseAmazon Web ServicesCloudflare+9 | — |
| 13 | Autosys Control Systems India Provider of water plant automation and control systems | $2M FY2025 | — | -8% | 28 | — | BootstrapApache HTTP ServerGoogle Font API+3 | — |
| 14 | Planys Technologies Provider of marine underwater robotics inspection platform 60Talent top 23%News top 25%Growth top 31%Moat top 32% All 9 signals ▾Talenttop 23% Newstop 25% Growthtop 31% Moattop 32% Fundingtop 43% Techtop 44% Fin. healthbottom 49% Marketbottom 48% Globalbottom 37% Talent: 5 named leaders on record · 5 C-suite/founder profiles curated News: 6 BI events in 12 mo (of 23 tracked, 2 types) · 5 high-value events (IPO/M&A/funding/contracts) in 12 mo rank vs industry peers · Fliar Intelligence Index 60/100 | $2M FY2025 | $10M | +119% | 102 102 → 168 (+65%) · sector median +16% | Krishnan Balasubramaniam Co-Founder | WordPressMySQLPHP+28 | — |
| 15 | Solinas Integrity Manufacturer of robotic systems for inspecting and cleaning underground pipelines 64Growth top 20%Innovation top 23%Talent top 28%Tech top 40% All 11 signals ▾Growthtop 20% Innovationtop 23% Talenttop 28% Techtop 40% Moattop 41% Producttop 43% Fundingbottom 45% Fin. healthbottom 44% Marketbottom 42% Globalbottom 37% Newsbottom 18% Growth: Headcount 40 → 64 (+60%) across vintages · Revenue +118% YoY Innovation: 5 product lines · Deep-tech classification: Tech Hardware rank vs industry peers · Fliar Intelligence Index 64/100 | $1M FY2025 | $940K | +118% | 64 64 → 141 (+120%) · sector median +16% | Moinak Banerjee Co-Founder & CTO | WordPressZohoMySQL+41 | — |
| 16 | WEGoT Provider of IoT-enabled smart water metering systems | $1M FY2025 | $5M | -36% | 66 66 → 72 (+9%) · sector median +16% | Sirisha Sumanth Co-Founder & COO | BootstrapApache HTTP ServerLeadfeeder+9 | 1 partnership · 1 award |
| 17 | Sekkei Bio Developer of drugs and vaccines to treat multiple diseases | $893K FY2025 | $2M | +255% | — | Monalisa Chatterji Co-Founder | WordPressMySQLPHP+15 | — |
| 18 | Madura Microfinance Microfinance firm providing individual and group loans to the rural population | $763K FY2022 | $4M | +142% | 17,912 | Narayanan Muthiah CEO | Cloudflare Browser InsightsCloudflareHTTP/3 | — |
| 19 | Greenvironment Developer of software for monitoring water and energy infrastructure systems | $721K FY2025 | $500K | +17% | 91 | Sam Thomas Co Founder & Director Finance & Strategy | WordPressMySQLPHP+23 | 2 partnerships |
| 20 | ZedBee Technologies Provider of IoT-based smart building and energy management solutions | $498K FY2025 | $732K | -9% | 48 48 → 53 (+10%) · sector median +16% | Arvind Kumar Co-Founder | WordPressMySQLZoho+27 | — |
| 21 | Earth Fokus Provider of water management solutions for homes, industries, and commercial spaces | $458K FY2025 | $184K | +165% | 13 13 → 22 (+69%) · sector median +16% | — | WordPressMySQLPHP+20 | — |
| 22 | Chakra Network Solutions Provider of AI-driven software solutions aimed at asset management for solar energy generation | $417K FY2025 | — | +21% | 2 | Sreehari Somu Nagarajan Co-Founder | — | — |
| 23 | Aeronero Technology company that develops and manufactures atmospheric water generators | $403K FY2025 | $2M | +383% | — | Pranav Nair Co-Founder & Head of R&D | WordPressMySQLPHP+23 | 2 awards |
| 24 | GoWatr Provider of smart water metering and industrial water automation solutions | $321K FY2025 | $50K | +42% | 26 | Mohamed Sathak Co-Founder | UbuntuBootstrapApache HTTP Server+14 | — |
| 25 | Dvara KGFS Provider of financial services including loans, insurance, savings, and remittances 50Talent top 28%Funding top 30%Tech top 42%Growth top 47% All 9 signals ▾Talenttop 28% Fundingtop 30% Techtop 42% Growthtop 47% Moattop 47% Marketbottom 47% Globalbottom 39% Fin. healthbottom 38% Newsbottom 24% Talent: 3 named leaders on record · 3 C-suite/founder profiles curated Funding: Raised $43.7M across 11 rounds · 11 rounds over 7 yrs (1.6/yr) rank vs industry peers · Fliar Intelligence Index 50/100 | $176K FY2024 | $44M | -2% | 4,094 | Samir Shah Co-Founder | SummernoteGoogle Sign-inGoogle Maps+15 | — |
| 26 | Circen Tech Provider of water treatment EPC and waste management solutions | $134K FY2025 | — | +2% | — | Chandni Rallan Founder & CEO | — | 1 job opening |
| 27 | AirOK Technologies Developer of solutions for air quality management | $132K FY2025 | $2M | -6% | 1 | Deekshith Prasad Co-Founder & CEO | WordPress Block EditorElementorCart Functionality+26 | — |
| 28 | Nebeskie Provider of edge-enabled IIoT platforms for industrial digitization | $119K FY2025 | $381K | +70% | — | Chaitanya Sadhale Co-Founder | ZohoNode.jsRadix UI+11 | 1 launch |
| 29 | Seagrass Tech Developer of tech platform for harvesting micro marine algae | $64K FY2024 | $80K | -62% | — | Prakash Ramadass Co-Founder & Director | WordPressTypeScriptPHP+30 | — |
| 30 | JSP Water treatment solutions provider | $57K FY2025 | $189K | +975% | — | Fidal Kumar Founder and CTO | — | — |
| 31 | JSP Enviro Provider of wastewater treatment solutions | $57K FY2025 | — | +975% | 4 | Fidal Kumar Co-Founder and CTO | WordPressMySQLPHP+20 | — |
| 32 | Arka Automaations GPS based fleet management solutions | $53K FY2025 | — | +45% | — | — | PHPBootstraptoastr+7 | — |
| 33 | Aavrtti Technologies Provider of cutting-edge solutions for accurate detection, location, and mapping of buried utilities and… | $47K FY2025 | $193K | +471% | 8 | Pragyan Prasu Patnaik Founder | Hostinger Website BuilderNginxOpenResty+11 | 1 job opening · 1 launch |
| 34 | Yaathum Biotech Provider of real-time quantitative PCR (qPCR) assays for disease diagnosis | $31K FY2025 | $16K | — | 5 | Anbhan Guru Co-Founder | — | — |
| 35 | Energyly Provider of IoT-based energy monitoring hardware and software for industries | $25K FY2021 | $269K | -35% | 8 | Dayal Nathan Co-Founder & CEO | BootstrapLiteSpeedMoment.js+14 | — |
| 36 | Scrapify Ecotech Online bidding platform for selling and buying waste material | $19K FY2025 | $12K | +52367% | — | Azhagu Raja Founder & CEO | — | — |
| 37 | Logfuze Provider of an AI platform for enterprise data decision and automation | $15K FY2025 | $250K | -1% | 20 | Gowri Tkm Co-Founder | WordPressMySQLPHP+22 | — |
| 38 | Tharam-Thiran Green Energy Flow Developer of sulfur-iron flow batteries | $10K FY2025 | $61K | — | — | Shanmugakumar Murugesan Co-Founder | — | — |
| 39 | Wankel Energy Systems Provider of deep tech energy startup company | $4K FY2025 | $1M | -22% | — | Vipin Venugopal Co-Founder | — | — |
| 40 | Aathma Pranavaayu Developer of solutions for reducing environmental pollution | $3K FY2025 | — | +853% | — | Usha Balashanmugam Co-Founder & Director | — | — |
| 41 | Antariksh Technology solutions provider for waste management | $1K FY2023 | — | -40% | — | — | — | — |
| 42 | Sthyr Energy Developer of zinc-air battery technology for long-duration energy storage solutions | — | $1M | — | — | Muhammed Hamdan Co-Founder & COO | WebflowGSAPNginx+11 | — |
| 43 | Airbeyond Retailer of air purifiers | — | $263K | — | — | Bharath Lodha Chief Executive Officer | — | — |
Top 12 Sustainability Tech companies in Chennai
#1
Series C · Chennai, Tamil Nadu · founded 2010 · 2071 employees$24.3Mraised▾
Microfinance Institution catering to the urban poor. It is expanding its products to provide MSME loans, savings, and insurance products in the areas that it services directly or as an agent to banks and insurance companies.
- Mar 2026Series C$5.1M
- Mar 2026Conventional Debt—
- Mar 2023Series B$4.8M
- Mar 2023Conventional Debt$5M
#2
Series B · Chennai, Tamil Nadu · founded 2015 · 102 employees$10.3Mraised▾
Provider of marine underwater robotics inspection platform. Its offerings include remotely operated underwater vehicles (ROVs) and autonomous systems for visual inspection, ultrasonic testing, sonar surveys, and real-time data collection for maritime and infrastructure assets. It also provides non‑destructive testing (NDT) services, corrosion monitoring, structural health assessment, digital reporting dashboards, and Internet of Underwater Things (IoUT) capabilities for remote monitoring. The platform uses AI-enabled analytics, laser and sonar defect quantification, high-definition video, ultrasonic thickness gauging, and modular ROV and AUV technology for inspection in hostile or submerged environments.
- Dec 2025Series B$11.1M
- 2024Series A—
- Mar 2024Series A$5.2M
- Jun 2023Series A—
#3
Series E · Chennai, Tamil Nadu · founded 2008 · 4094 employees$43.7Mraised▾
Provider of financial services including loans, insurance, savings, and remittances. The company offers financial advice to clients, ensuring they use a combination of services that promotes financial well-being. It delivers financial services through a branch-based model. The company offers a range of products to its customers.
- May 2025Series E$3.3M
- Jun 2024Venture Debt$7M
- May 2024Venture Debt$10M
- Mar 2024Conventional Debt$14.4M
#4
Seed · Chennai, Tamil Nadu · founded 2018 · 64 employees$940Kraised▾
Manufacturer of robotic systems for inspecting and cleaning underground pipelines. These devices navigate water, sewer, and stormwater networks to identify leaks, blockages, and structural defects. The technology includes crawlers equipped with cameras and sensors to perform visual assessments and measurements. Data collected from these inspections is processed through software platforms to map infrastructure and categorize maintenance requirements. The systems replace manual entry into confined spaces for cleaning and desilting tasks. This approach supports the maintenance of industrial and municipal infrastructure by providing diagnostic information for asset management.
- May 2026Seed$105.8K
- Aug 2025Seed$1.1M
- Oct 2024Seed$118.9K
- 2024Grant (prize money)—
#5
Series A · Chennai, Tamil Nadu · founded 2015 · 67 employees$8.4Mraised▾
Manufacturer of modular, portable, and reusable infrastructure for various sectors. The company reinvents the design and manufacturing of fundamental building blocks for diverse structures. It offers modular cabins, including portable hospitals, storage units, education infrastructure, offices, and homes. These structures cater to healthcare, agriculture, education, construction, hospitality, NGOs, CSR initiatives, and governmental needs. The company focuses on rapid construction, portability, reusability, and technology integration, providing custom-made, certified, and easily deployable solutions.
- May 2025Series A$7.8M
- Sep 2024Seed$598.1K
- Jun 2020Conventional Debt—
- 2018Seed—
#6
Seed · Chennai, Tamil Nadu · founded 2022$1Mraised▾
Provider of deep tech energy startup company. They develop advanced,compact machines that recover wasted steam potential a form of lost exergy and convert it into clean usable electricity. Its flagship product the phoenix expander enables process industries to generate power directly from existing steam lines without requiring major infrastructure changes.
- Sep 2025Seed$1M
#7
Seed · Chennai, Tamil Nadu · founded 2024$1Mraised▾
Developer of zinc-air battery technology for long-duration energy storage solutions. The company's patented system stores surplus renewable energy by regenerating zinc. When energy is needed, the zinc plates release power using ambient air and water-based electrolytes. The zinc converts back to zinc oxide, which is then reused in a closed-loop cycle. The technology enables seasonal storage and provides reliable clean energy.
- Jun 2025Seed$1M
#8
Acquired · Chennai, Tamil Nadu · founded 1988 · 10457 employees$138.6Mraised▾
Belstar Investment is a Chennai based NBFC-MFI with gross loan portfolio of Rs. 124 crore as on 31st March 2014. It primarily offers loans in Tamil Nadu for creation of micro-enterprises. It offers collateral-free loans to Self Help Group (SHG) members, and also offers education and home improvement loans. The organization’s operation spreads over 4 states (Tamil Nadu, Pondicherry, Karnataka and Madhya Pradesh) with 64 branches reaching 113,838 clients
- Mar 2022Unattributed$50.6M
- Aug 2021Unattributed$47.2M
- Jul 2018Unattributed$29.5M
- Mar 2018Conventional Debt$38.6M
#9
Seed · Chennai, Tamil Nadu · founded 2019$1.5Mraised▾
Technology company that develops and manufactures atmospheric water generators. It device works by drawing in air, after which condensation of vapor takes place inside its loop technology that has the ability to harness water. The products utilize advanced technology to condense water vapor, producing alkaline rich water.
- Mar 2025Seed$1.5M
- Jan 2025Seed$29.2K
#10
Series A · Chennai, Tamil Nadu · founded 2012 · 91 employees$499.8Kraised▾
Developer of software for monitoring water and energy infrastructure systems. This technology utilizes digital twin models to track resource consumption and operational health. The platform provides automated reporting and predictive analytics to identify inefficiencies within building systems. These tools assist in managing utility usage and maintaining compliance with environmental regulations.
- May 2025Series A$1M
- 2024Grant (prize money)—
- 2024Grant (prize money)—
- Oct 2019Series A$419.3K
#11
Seed · Chennai, Tamil Nadu · founded 2015 · 48 employees$732.1Kraised▾
Provider of IoT-based smart building and energy management solutions. It provides building automation control systems that integrate critical infrastructure equipment, providing centralized data management for secured and efficient building operations. The platform offers seamless integration with existing infrastructure and allows for scalability to meet future needs. The systems improve building responsiveness to occupant needs through proactive adjustments.
- Mar 2025Seed$289.5K
- Apr 2021Seed$187.3K
- Apr 2019Seed$514K
- Aug 2015Angel$30.8K
#12
Public · Chennai, Tamil Nadu · founded 2009 · 2918 employees$188.5Mraised▾
Provider of loans for affordable housing. It was established mainly to meet the housing finance needs of independent contractors and low- and middle-income families, mostly from semi-urban and rural areas. The majority of India’s population and especially the self employed business segment from semi urban areas lack access to housing finance.
- Sep 2019Series D$122.2M
- Dec 2017Conventional Debt$31.2M
- Sep 2016Series C$40.3M
- Nov 2014Series B$16M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Sustainability Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
What Chennai researches in climate adaptation
VIT University, IIT Madras, and University of Madras lead Chennai's flood risk, hydrology, and AI-forecasting research across 22 recent papers, with a cautiously optimistic yet concern-balanced stance.
- Vellore Institute of Technology University7
- Indian Institute of Technology Madras4
- University of Madras3
- Anna University, Chennai3
- Sathyabama Institute of Science and Technology3
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.