Best Energy Efficiency Tech Companies in India
The 522 best Energy Efficiency Tech companies in India in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Applied Energy.
Here's where India's Energy Efficiency Tech companies get ranked by what they've actually raised, not by what a press release claims. Our directory tracks 522 companies across India, with $234M in total disclosed funding and, notably, zero unicorns. That last fact tells you something real about how early this market still is.
But the revenue picture is a different story. Across 170 filers, the combined pool sits at $505M, with a median of roughly $215K per company and 9% YoY growth. Those are steady, not spectacular, numbers. What catches my eye is the concentration at the top: Applied Energy Technologies pulled $75M in revenue last year, Halonix Technologies $71M, and Ast Telecom Solar $70M. Halonix and Ikio Technologies are the real profit outliers, each booking roughly $4M in net income, which is 300x the sector median of $13K. So when you're sorting through funded names like Optimist, OctoLife, and Smart Joules, remember that disclosed funding and actual earned revenue are two very different scorecards. And app-install growth for energy-related platforms is running at 28% YoY, which suggests end-user demand is building faster than the funding rounds would imply.
Our analysis of 50 Energy Efficiency Tech companies
$7.8b in tracked funding; 86% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy Efficiency Tech companies in India
| # | Company | Disclosed funding | Last round | Revenue | Revenue YoY | Employees | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Applied Energy AI-driven platform offering energy monitoring solutions | $83M | 132 mo ago | $83M FY2025 | — | — | Webflowcore-jsjQuery+8 | — |
| 2 | Kalki Communication Technologies Provider of smart-grid solutions to optimize energy generation | $4M | 168 mo ago | $17M FY2025 | +20% | 606 606 → 383 (-37%) · sector median +11% | WordPressMySQLPHP+31 | — |
| 3 | GRE Renew Enertech Manufacturer of solar panels and indoor LED lights | $389K | 25 mo ago | $10M FY2025 | -8% | 8 | WordPressMySQLPHP+24 | — |
| 4 | Smart Joules Provider of AI-powered energy efficiency solutions for commercial buildings 76Moat top 22%Talent top 28%Growth top 30%Product top 30% All 12 signals ▾Moattop 22% Talenttop 28% Growthtop 30% Producttop 30% Innovationtop 34% Newstop 34% Fundingtop 35% Markettop 42% Fin. healthtop 42% AItop 45% Techtop 49% Globalbottom 39% Moat: Top 1% by revenue among 73 tracked IoT Applications companies · Editorial + unicorn rating 7/10 Talent: 3 named leaders on record · 3 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 76/100 | $7M | 6 mo ago | $8M FY2025 | +40% | 192 192 → 250 (+30%) · sector median +11% | WordPressMySQLSalesforce+25 | 2 partnerships |
| 5 | NSOFT Provider of IoT-based billing and energy management solutions | $2M | 103 mo ago | $8M FY2025 | — | 826 | WordPressMySQLPHP+12 | — |
| 6 | SPINOFF Technopark Clean tech energy product in lithium such as ESS, BESS, SOLAR, Home solutions inverters | $1M | 17 mo ago | $6M FY2025 | +14% | — | PHPLaravelBootstrap+11 | 1 job opening |
| 7 | Keus Provider of smart home automation solutions | $12M | 31 mo ago | $4M FY2025 | +40% | 272 272 → 301 (+11%) · sector median +11% | Node.jsSvelteKitTailwind CSS+21 | 9 job openings |
| 8 | Corvi Provider of high-efficiency LED lighting solutions with a focus on innovative design and manufacturing… | $19M | 23 mo ago | $3M FY2025 | +95% | 43 | WebflowCart FunctionalityUbuntu+15 | — |
| 9 | Promethean Energy Provider of industrial thermal waste heat recovery and energy solutions | $488K | 13 mo ago | $2M FY2025 | +14% | 24 | WordPress Block EditorWordPressMySQL+18 | — |
| 10 | Trezi Developer of an immersive platform for collaborative design using AR and VR | $3M | 25 mo ago | $2M FY2025 | — | 42 42 → 24 (-43%) · sector median +11% | WordPressMySQLPHP+26 | — |
| 11 | Zenatix Smart energy monitoring and analytics | $2M | 108 mo ago | $1M FY2025 | +19% | 139 139 → 151 (+9%) · sector median +11% | WordPressMySQLPHP+24 | — |
| 12 | Ottomate Online platform offering smart fans and other home appliances | $6M | 57 mo ago | $1M FY2024 | — | 14 | Apache HTTP ServerSendinblueMicrosoft 365+1 | — |
| 13 | Svarochi Smart home lighting products manufacturer | $6M | 112 mo ago | $1M FY2023 | — | 7 | — | — |
| 14 | Nhance Provider of AI-enabled unified digital twin solution for built asset management | $2M | 22 mo ago | $1M FY2025 | +5% | — | WordPressMySQLPHP+26 | 3 job openings · 1 award |
| 15 | eGlu IoT based home automation/security solutions | $654K | 58 mo ago | $986K FY2025 | — | 51 | ZohoNode.jsUbuntu+27 | — |
| 16 | Virtual Forest Provider of advanced motor control and embedded electronics solutions | $668K | 37 mo ago | $927K FY2025 | +62% | 34 34 → 27 (-21%) · sector median +11% | Node.jsHeadless UIReact Router+14 | — |
| 17 | FlamencoTech Provider of IT support and consulting services | $3M | 58 mo ago | $902K FY2025 | -28% | 4 | — | — |
| 18 | Athenta Provider of data center management and smart city solutions | $2M | 121 mo ago | $890K FY2020 | +229% | 29 | — | — |
| 19 | LogicLadder Cloud & AI-driven IoT solutions for energy & groundwater management | $4M | 24 mo ago | $838K FY2023 | — | 65 | ZohoUbuntuBootstrap+9 | — |
| 20 | Inspacco B2B marketplace and digital order management platform for vendor partners | $248K | 22 mo ago | $728K FY2025 | +44% | 8 | TypeScriptGraphQLTailwind CSS+9 | 1 job opening · 6 internships |
| 21 | Greenvironment Developer of software for monitoring water and energy infrastructure systems | $500K | 13 mo ago | $721K FY2025 | +17% | 91 | WordPressMySQLPHP+23 | 2 partnerships |
| 22 | Airth Internet first brand offering air purifiers for businesses | $231K | 16 mo ago | $698K FY2025 | +177% | 18 | Cart FunctionalityShopifyBootstrap+19 | 2 launchs |
| 23 | Aviconn Provider of products for home automation | $421K | 36 mo ago | $584K FY2025 | +180% | — | WordPressMySQLPHP+9 | — |
| 24 | Praan Provider of air purification systems for homes, commercial, and industrial spaces | $2M | 23 mo ago | $513K FY2025 | +146% | 34 | GridsomeUbuntuElement UI+17 | — |
| 25 | ZedBee Technologies Provider of IoT-based smart building and energy management solutions | $732K | 15 mo ago | $498K FY2025 | -9% | 48 48 → 53 (+10%) · sector median +11% | WordPressMySQLZoho+27 | — |
| 26 | Clairco Developer of hardware and software for building energy efficiency monitoring | $844K | 26 mo ago | $321K FY2025 | -39% | 16 | Wix eCommerceWixSentry+14 | — |
| 27 | SmartCheck Provider of IoT and cloud-based facility management solutions for enterprises | $567K | 26 mo ago | $310K FY2025 | +105% | 36 36 → 48 (+33%) · sector median +11% | WordPressMySQLPHP+27 | — |
| 28 | Karban Manufacturer of bladeless ceiling fans with integrated air purification and lighting | $1M | 28 mo ago | $265K FY2025 | +123% | — | Cart FunctionalityShopifyChart.js+27 | — |
| 29 | SustLabs Provider of IoT-based energy consumption monitoring solutions 29Growth top 24%Talent top 38%Funding bottom 49%Tech bottom 43% All 8 signals ▾Growthtop 24% Talenttop 38% Fundingbottom 49% Techbottom 43% Moatbottom 42% Globalbottom 37% Fin. healthbottom 35% Marketbottom 14% Growth: Revenue +76% YoY · Fresh capital in last 24 mo Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 29/100 | $522K | 14 mo ago | $157K FY2025 | +76% | 7 | UbuntuMUIBootstrap+13 | — |
| 30 | Smarter Dharma Provider of software for making sustainability-driven decisions | $618K | 13 mo ago | $154K FY2025 | +24% | 18 | WordPressZohoMySQL+24 | 2 launchs |
| 31 | Enlog AI-powered energy management solution | $342K | 19 mo ago | $150K FY2025 | -32% | — | ShopifyNode.jsFirebase+22 | — |
| 32 | Living Things AI and IoT technology provide energy intelligence solutions for enterprises | $1M | 39 mo ago | $124K FY2025 | +403% | 40 40 → 64 (+60%) · sector median +11% | Node.jsRadix UITailwind CSS+14 | — |
| 33 | Chara Manufacturer of rare-earth free motor systems and intelligent motor controllers 29News top 25%Talent top 28%Growth top 44%Funding top 48% All 9 signals ▾Newstop 25% Talenttop 28% Growthtop 44% Fundingtop 48% Moattop 48% Techtop 50% Globalbottom 37% Marketbottom 36% Fin. healthbottom 12% News: 5 BI events in 12 mo (of 12 tracked, 4 types) · 4 high-value events (IPO/M&A/funding/contracts) in 12 mo Talent: 3 named leaders on record · 3 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 29/100 | $8M | 15 mo ago | $123K FY2025 | -55% | 75 75 → 100 (+33%) · sector median +11% | WebflowGSAPAlpine.js+19 | — |
| 34 | Nebeskie Provider of edge-enabled IIoT platforms for industrial digitization | $381K | 43 mo ago | $119K FY2025 | +70% | — | ZohoNode.jsRadix UI+11 | 1 launch |
| 35 | IOTomation Provider of AI and cloud-based building automation solutions | $756K | 62 mo ago | $105K FY2025 | -26% | 8 | — | — |
| 36 | Ecolibrium Provider of AI-powered platform for optimizing industrial equipment and portfolio performance 24Tech top 38%Funding top 44%AI top 45%Talent bottom 49% All 10 signals ▾Techtop 38% Fundingtop 44% AItop 45% Talentbottom 49% Productbottom 45% Globalbottom 43% Marketbottom 34% Growthbottom 33% Newsbottom 27% Fin. healthbottom 12% Tech: 36 technologies across 4/8 capability areas · Cloud: Amazon Web Services, Cloudflare Funding: Raised $5.4M across 11 rounds · 11 rounds over 15 yrs (0.7/yr) rank vs industry peers · Fliar Intelligence Index 24/100 | $5M | 15 mo ago | $99K FY2025 | -37% | 66 66 → 131 (+98%) · sector median +11% | WordPressZohoMySQL+28 | — |
| 37 | Albatross Energetics Provider of a thermal engineering and technology company that designs and manufactures air-handling units | $155K | 26 mo ago | $44K FY2025 | -8% | — | WebflowjsDelivrCloudflare+5 | — |
| 38 | ThingsCloud AI and SaaS-driven building energy management systems provider | $891K | 51 mo ago | $43K FY2025 | +35% | 1 | — | — |
| 39 | CIMware Provider of composable disaggregated infrastructure solutions for data centers | $156K | 11 mo ago | $33K FY2025 | -72% | — | — | 3 job openings |
| 40 | MinionLabs Provider of an energy monitoring sensing device | $330K | 36 mo ago | $20K FY2023 | -52% | 12 | — | — |
| 41 | Cubical Developer of IoT based solutions for home automation | $1M | 74 mo ago | $11K FY2025 | -84% | 10 | UbuntuNginxGoogle Workspace+1 | — |
| 42 | winAMR Provider of smart metering and smart grid solutions for utilities | $7M | 98 mo ago | $7K FY2025 | +1% | 3 | — | — |
| 43 | Optimist Manufacturer of air conditioning units with energy efficiency and smart features 7Tech top 46%Talent bottom 49%Funding bottom 43%Product bottom 40% All 7 signals ▾Techtop 46% Talentbottom 49% Fundingbottom 43% Productbottom 40% Globalbottom 36% Marketbottom 15% Fin. healthbottom 11% Tech: 25 technologies across 4/8 capability areas · Cloud: Amazon Cloudfront, Amazon S3 Talent: 1 named leader on record · 1 C-suite/founder profile curated rank vs industry peers · Fliar Intelligence Index 7/100 | $12M | 4 mo ago | $6K FY2025 | — | — | ShopifyCart FunctionalityTurbopack+22 | 1 partnership |
| 44 | OctoLife Developer of sustainable and accessible cooling solutions 11Growth top 35%Talent bottom 49%Funding bottom 47%Global bottom 45% All 7 signals ▾Growthtop 35% Talentbottom 49% Fundingbottom 47% Globalbottom 45% Techbottom 39% Fin. healthbottom 11% Marketbottom 5% Growth: Fresh capital in last 24 mo Talent: 1 named leader on record · 1 C-suite/founder profile curated rank vs industry peers · Fliar Intelligence Index 11/100 | $12M | 5 mo ago | $6K FY2025 | — | — | WebflowVimeocore-js+10 | — |
| 45 | Greeniee Provider of SaaS-driven energy management and monitoring solution | $3M | 88 mo ago | $5K FY2025 | — | — | — | — |
| 46 | Wankel Energy Systems Provider of deep tech energy startup company | $1M | 8 mo ago | $4K FY2025 | -22% | — | — | — |
| 47 | citoto Provider of IoT-enabled access control systems | $72K | 31 mo ago | $221 FY2025 | +4149% | — | — | — |
| 48 | Sumeru Verde Provider of smart energy meters and management systems | $4M | 61 mo ago | $41 FY2025 | -100% | 3 | — | — |
| 49 | Iris Energy Remote monitoring solutions for lighting applications | $3M | 167 mo ago | — | — | 7 | — | — |
| 50 | Singularity Automation Cloud-based IoT enables management software for co-working and co-living spaces | $1M | 75 mo ago | — | — | 21 | — | — |
Top 12 Energy Efficiency Tech companies in India
#1
Seed · Gurugram, Haryana · founded 2024$12Mraised▾
Manufacturer of air conditioning units with energy efficiency and smart features. These units are designed for effective cooling and reduced electricity consumption. Features include cooling technology, gas level indicators, and remote diagnostic capabilities. An application allows users to monitor energy usage and manage settings.
- Jan 2026Seed$12M
#2
Series A · Bengaluru, Karnataka · founded 2024$11.9Mraised▾
Developer of sustainable and accessible cooling solutions. It iffers HVAC solutions and the technology focuses on reducing environmental impact while providing effective thermal comfort. The company's approach involves hands-on engineering and deep technological innovation.
- Dec 2025Series A$8M
- Sep 2024Series A$3.9M
#3
Series B · Delhi, Delhi · founded 2014 · 192 employees$7.4Mraised▾
Provider of AI-powered energy efficiency solutions for commercial buildings. It provides cooling solutions through a subscription model, focusing on total cost of ownership. It offers design, implementation, operations, maintenance, and optimisation services. The company delivers efficiency through design, equipment, and data-based operations.
- Nov 2025Series B$10M
- May 2025Series A$3.3M
- Feb 2024Series A—
- Feb 2024Conventional Debt$8M
#4
Series A · Bengaluru, Karnataka · founded 2019 · 75 employees$7.8Mraised▾
Manufacturer of rare-earth free motor systems and intelligent motor controllers. The company develops synchronous reluctance motor systems that maximize efficiency and eliminate electromagnetic losses. It utilizes cost-effective, high-strength materials for enhanced durability. The company's motor control systems ensure optimum efficiency, thermal management, and smooth torque delivery.
- Feb 2025Series A$6.2M
- Dec 2022Seed$4.8M
- Apr 2022Seed$56.2K
- Mar 2021Seed$850.7K
#5
Series A · Ahmedabad, Gujarat · founded 2010 · 66 employees$5.4Mraised▾
Provider of AI-powered platform for optimizing industrial equipment and portfolio performance. The platform offers real-time insights, predictive analytics, and round-the-clock monitoring. It assists businesses in achieving net-zero goals, elevating productivity, and reducing operational costs. The platform’s application library covers a wide range of industrial equipment, providing interconnected, macro-to-micro level insights. It allows users to monitor their entire portfolio from a single view.
- Mar 2025Series A$8.9M
- Mar 2022Seed$5M
- Dec 2021Seed$30.5K
- Oct 2020Seed$817.6K
#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
Series B · Mumbai, Maharashtra · founded 2012 · 43 employees$18.7Mraised▾
Provider of high-efficiency LED lighting solutions with a focus on innovative design and manufacturing processes. They provide products like tube lights,down lights,flat lights,surface lights,spot lights. They uses 3d printing technology and digital simulations to develop new products.
- Jun 2024Series B$8M
- Jul 2017Series A$10M
- Oct 2016Angel$747.5K
#8
Seed · Bengaluru, Karnataka · founded 2012 · 18 employees$618Kraised▾
Provider of software for making sustainability-driven decisions. The company's platform uses relevant data, visualizations, and data intelligence tools to enable users in making an informed decision on integrating sustainable technology in their developments. It also helps organizations and governments to make real-time decisions for robust sustainable growth and manage risk.
- May 2025Seed$431.1K
- Jul 2024Seed$41.9K
- Sep 2023Seed$500K
- Apr 2021Seed$118K
#9
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
#10
Seed · Chandigarh, Union Territory Of Chandigarh · founded 2008$1.4Mraised▾
Clean tech energy product in lithium such as ESS, BESS, SOLAR, Home solutions inverters. Manufacturing infra with in house R&D nd Design capabilities to manufacture all sort of ESS product catregories.
- Jan 2025Angel$551.8K
- Jan 2009Seed$358.3K
- Angel$470.6K
#11
Seed · Mumbai, Maharashtra · founded 2016 · 7 employees$521.5Kraised▾
Provider of IoT-based energy consumption monitoring solutions. Its solution is designed to help households and small offices track and optimize their energy usage. Its product, Ohm, provides real-time insights into energy consumption patterns, enabling users to make informed decisions to reduce their energy footprint. With a focus on sustainability, It aims to empower individuals and organizations to adopt energy-efficient practices and contribute to a more environmentally friendly future. It helps businesses with informed energy management decisions.
- Apr 2025Seed$1.2M
- Mar 2024Seed$251.6K
- Dec 2023Grant (prize money)—
- Mar 2023Seed$120.5K
#12
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
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy Efficiency Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Energy Efficiency & Buildings is moving in India
A read on the academic research around Energy Efficiency & Buildings — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 1,674 India-affiliated papers.
- Vellore Institute of Technology University95
- Indian Institute of Technology Delhi52
- Amrita Vishwa Vidyapeetham41
- Saveetha University38
- SRM Institute of Science and Technology37
- Energy management10→173
- Renewable energy5→95
- Smart grid6→80
- Energy management system5→79
- Microgrid6→68
- Energy management55→279
- Microgrid24→148
- Energy management system36→157
- Renewable energy41→159
- Photovoltaic system15→122
- Energy management3→14
- Renewable energy1→10
- Energy management system2→10
- Energy (signal processing)1→8
Where energy efficiency is researched across India
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing energy efficiency patents in India
India energy efficiency patent filing is cooling — 56 filings from 189 assignees (2016–2025), led by Thermax, Robert Bosch, General Electric; annual filings 7→6.
- Thermax25
- Robert Bosch6
- General Electric5
- Marur Sudhakar Ramamoorthy4
- Intel4
- Sabic Innovative Plastics IP4
- Kariguddaiah Ajith4
- ZENZ Gerhard4
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.