Best Sustainability Tech Companies in Kolkata, India
The 45 best Sustainability Tech companies in Kolkata, India in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Arohan.
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 Kolkata
| # | Company | Revenue | Disclosed funding | Revenue YoY | Tech stack | Founder | Web popularity | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Arohan Non-banking financial company focuses on providing financial services to low-income individuals and… | $201M FY2025 | $166M | +4% | TypeScriptPHPZoho+22 | Vineet Rai Founder & Chairman | Top 50k | 1 job opening |
| 2 | Sova Solar Manufacturer and provider of solar modules | $62M FY2025 | $54K | +58% | WordPressMySQLPHP+33 | Subrata Mukherjee Founder & Managing Director | Top 5M | — |
| 3 | VFS Capital Provider of micro financial services | $23M FY2025 | $12M | +8% | Node.jsGoogle MapsAnimate.css+11 | Kuldip Maity CEO & Managing Director | Top 10M | — |
| 4 | Uttrayan Financial Services Micro loans in West Bengal | $10M FY2025 | — | +20% | WordPress Block EditorElementorWordPress+29 | Kartick Biswas Founder & MD | Top 10M | — |
| 5 | Meho-Hcp Air Systems Provider of HVAC solutions and air conditioning systems | $8M FY2025 | — | +2% | — | Vishal Kapur MD | — | — |
| 6 | Jagaran Microfin Micro Loans in West Bengal | $8M FY2025 | $11M | -13% | PHPAnimate.cssBootstrap+8 | Jaydeep Ghosh CEO | Top 5M | — |
| 7 | MB Control Manufacturer of electronic systems and provider of industrial energy management solutions | $6M FY2025 | — | +43% | WordPressMySQLPHP+28 | Vijay Agrawal Founder | Top 5M | — |
| 8 | Manikaran Analytics Provider of energy forecasting and scheduling services | $4M FY2025 | — | +47% | WordPressMySQLPHP+28 | Amresh Khosla CEO & Director | Top 10M | — |
| 9 | Janakalyan Micro-loans for individuals and enterprises | $4M FY2025 | $3M | +18% | PHPCodeIgniterBootstrap+8 | Sunanda Mitra Co-Founder | Top 5M | — |
| 10 | Sarala Microcredit and savings for the low-income individuals | $3M FY2025 | — | — | WordPressMySQLPHP+15 | Pranab Rakshit CEO & MD | Top 10M | — |
| 11 | Grameen Shakti Micro Finance Services Microfinance institution supporting low-income women | $2M FY2025 | — | +21% | WordPress Block EditorElementorWordPress+24 | Ganesh Chandra Modak Managing Director | Top 5M | — |
| 12 | Har Bauer India Provider of arsenic-free water solutions for households | $2M FY2025 | — | +25% | Node.jsUbuntuAnimate.css+10 | — | Top 50M | 1 launch |
| 13 | Paving+ Provider of asphalt and concrete paving services for residential, commercial, and industrial projects | $381K FY2025 | — | +29% | WordPressMySQLPHP+17 | Sheikh Rahman Co-Founder & CBO | Top 10M | — |
| 14 | Condair Humidity and environment control systems | $332K FY2025 | — | +2% | CloudflareGoogle Hosted LibrariesMatomo Tag Manager+10 | — | Top 5M | — |
Top 11 Sustainability Tech companies in Kolkata
#1
Acquired · Kolkata, West Bengal · founded 2006 · 10738 employees$166.2Mraised▾
Non-banking financial company focuses on providing financial services to low-income individuals and micro-enterprises. It offers a suite of credit products, including micro-loans, micro-insurance, and innovative digital lending solutions. It also provides life & general insurance and other non-financial products.
- Jul 2023Series C$24M
- Nov 2022Series C$89.2M
- Feb 2021Series C$23M
- Oct 2019Conventional Debt$3.5M
#2
Funding Raised · Kolkata, West Bengal · founded 2022 · 15 employees$23.9Kraised▾
Provider of environmental consultancy, waste management, and textiles services
- Sep 2024Grant (prize money)$23.9K
#3
Seed · Kolkata, West Bengal · founded 2023$550Kraised▾
Provider of carbon reduction solutions for crop farming
#4
Early Stage · Kolkata, West Bengal · founded 1993 · 1336 employees$10.8Mraised▾
Jagaran Microfin provides micro loans to women from low-income groups. It offers loans for income generation, education and house repairs in the range of Rs. 3,000 - Rs. 25,000 under the joint liability group model of lending. It has a network of 47 branches and it has disbursed 82,655 loans with its gross loan portfolio at Rs. 51 crore. The company's primary area of operations is West Bengal, though it has opened few branches in Jharkhand and Bihar. It is promoted by GTFS Multi Services, an entity engaged indistribution of financial products and related activities in West Bengal
- Dec 2019Conventional Debt$3.1M
- Sep 2019Unattributed$1.3M
- Dec 2018Conventional Debt$7.7M
- Oct 2018Unattributed$7.5M
#5
Series B · Kolkata, West Bengal · founded 1996 · 1846 employees$11.7Mraised▾
Provider of micro financial services. It offers a variety of loans to cater to different needs, and type of loans such as Sambriddhi & Briddhi loans. It also provides small business loans and other financial services, with a focus on women's empowerment.
- Mar 2018PE$383.6K
- Mar 2018Series B$6.2M
- Jul 2010Series A$2.7M
- Mar 2009Unattributed$1.9M
#6
Seed · Kolkata, West Bengal · founded 2016 · 386 employees$3Mraised▾
Micro-loans for individuals and enterprises
- Feb 2021Seed$1M
- Oct 2019Angel$525.1K
- Nov 2018Seed$1M
- Aug 2018Angel$418.4K
#7
Series A · Kolkata, West Bengal · founded 2008 · 1253 employees$1.3Mraised▾
ASA India is a Kolkata-based NBFC with gross loan portfolio of Rs. 48 cr as on 31st March 2014. It offers micro loans to women in the range of Rs. 1,000 - Rs. 50,000. The organization’s operations are spread over 5 states (West Bengal, Bihar, Assam, UP and Tripura) with 102 branches reaching 84,320 clients. ASA International Holding holds 75% of its shareholding while Proswift Consultancy holds the remaining 25%
- Dec 2019Conventional Debt$11.2M
- Dec 2015Series A$1.3M
#8
Deadpooled · Kolkata, West Bengal · founded 2001$365.7Kraised▾
Micro finance in East India
- Mar 2009Seed$36.4K
- Mar 2008Seed$127.8K
- Mar 2007Seed$201.4K
#9
Seed · Kolkata, West Bengal · founded 2008$53.6Kraised▾
Manufacturer and provider of solar modules. It offers PERC solar cells to optimize the energy production. It provides solar cells with dual glass technology. The platform offers solar cells such as Polycrystalline, Mono PERC Bi-Facial, MONO PERC Half-cut solar cell, and more.
- Jan 2014Seed$53.6K
#10
Seed · Kolkata, West Bengal · founded 2019—raised▾
Provider of asphalt and concrete paving services for residential, commercial, and industrial projects. It offers a range of services, such as driveways, roads, and parking lot construction. It converts low-value waste into durable, carbon-negative construction materials and road solutions.
- May 2025Seed—
#11
Funding Raised · Kolkata, West Bengal · founded 2024$11Kraised▾
Developer of hybrid hydrogen powered generators for off-grid and remote applications. It believes the future of energy is hydrogen-powered, sustainable, and accessible to everyone-from remote villages to industrial hubs and defense operations. It is a hybrid hydrogen generator, a compact, portable device that transforms chemical fuels into clean hydrogen and electricity. Unlike conventional power solutions, its generators are designed to be rugged, efficient, and easy to deploy, making them ideal for off-grid locations, disaster relief, industrial sites, and defense missions. It enables communities and industries to thrive without leaving a carbon footprint.
- Grant (prize money)—
- Grant (prize money)$11K
- Grant (prize money)—
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
How research on Climate Adaptation is moving in India
A read on the academic research around Climate Adaptation — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 835 India-affiliated papers.
- Amicable Knowledge Solution University44
- Lovely Professional University18
- Christ University16
- Indian Institute of Technology Bombay15
- Indian Institute of Technology Roorkee15
- Climate resilience1→7
- Climate change3→114
- Flood myth6→75
- Agriculture4→57
- Psychological resilience2→31
- Flooding (psychology)1→26
- Climate change6→241
- Agriculture3→101
- Resilience (materials science)1→89
- Climate resilience2→69
- Psychological resilience3→59
Where climate adaptation 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.
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.