Company lists · Data refreshed September 2026

Top 25 Clean tech companies based in India

Name: Clean tech companies based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,601 companies tracked

RevenueBase identified 1,601 clean tech companies headquartered in India as of September 2026 and tracks 38,262 professional contacts across them, including 6,708 with verified work emails. Pune is the largest hub.

This list covers clean tech companies headquartered in India, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

1,601Companies

38,262Contacts tracked

6,708Verified emails

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The 25 largest clean tech companies based in India

Ranked by team size

Top 25 of 1,601 clean tech companies based in India, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to clean tech companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	RENEW	Partial evidence	Gurugram, IndiaHQ checked Sep 19, 2026	1,001-5,000	4,340 contacts →
	Partial evidence “ReNew is a leading decarbonisation solutions provider and the first Indian clean energy company to list on Nasdaq (Nasdaq: RNW).” Source: RevenueBase Database · checked Sep 19, 2026
2	Tata Power Renewable Energy Limited	Indirect evidence	Mumbai, IndiaHQ checked Sep 19, 2026	501-1,000	2,660 contacts →
	Indirect evidence “Tata Power Renewable Energy Limited (TPREL) is one of India’s leading renewable energy companies, driving the transition towards a cleaner, more resilient and sustainable energy…” Source: RevenueBase Database · checked Sep 19, 2026
3	Greenko Group	Indirect evidence	Hyderabad, IndiaHQ checked Sep 19, 2026	1,001-5,000	2,578 contacts →
	Indirect evidence “Greenko, is one of the World’s leading Energy Transition and Decarbonization solutions company, with an installed Renewable Energy capacity of ~7.5 GW across Wind, Solar and Hydro…” Source: RevenueBase Database · checked Sep 19, 2026
4	Acme Group	Indirect evidence	Gurgaon, IndiaHQ checked Sep 19, 2026	1,001-5,000	2,242 contacts →
	Indirect evidence “ACME Group is one of the leading global sustainable and renewable energy companies and a beacon of innovation in the sustainable energy landscape for the past 2 decades.” Source: RevenueBase Database · checked Sep 19, 2026
5	SAEL	Indirect evidence	New Delhi, IndiaHQ checked Sep 19, 2026	1,001-5,000	1,212 contacts →
	Indirect evidence “SAEL Industries Limited, is a leading Indian renewable energy company specializing in solar and waste-to-energy projects, committed to fostering green assets that contribute to…” Source: RevenueBase Database · checked Sep 19, 2026
6	Cleanmax	Indirect evidence	Mumbai, IndiaHQ checked Sep 19, 2026	201-500	735 contacts →
	Indirect evidence “CleanMax is India’s largest commercial and industrial (“C&I”) renewable energy provider with 3 GW of operational, owned and managed capacity.” Source: RevenueBase Database · checked Sep 19, 2026
7	Hero Future Energies	Indirect evidence	New Delhi, IndiaHQ checked Sep 19, 2026	501-1,000	544 contacts →
	Indirect evidence “Hero Future Energies (An ISO 27001:2022 Certified Company) is a leading global renewable energy company and part of the illustrious Hero Group, one of the most respected business…” Source: RevenueBase Database · checked Sep 19, 2026
8	Chakr Innovation	Indirect evidence	Gurugram, IndiaHQ checked Sep 19, 2026	501-1,000	476 contacts →
	Indirect evidence “Chakr Innovation is a pioneering Indian cleantech startup, founded by IIT Delhi graduates, dedicated to revolutionizing air quality with cutting-edge material science technology.” Source: RevenueBase Database · checked Sep 19, 2026
9	Serentica	Indirect evidence	Gurugram, IndiaHQ checked Sep 19, 2026	201-500	470 contacts →
	Indirect evidence “Serentica Renewables India Private Limited,(Serentica) is a is an end-to-end energy solutions company enabling large-scale heavy energy intensive industries and sector to…” Source: RevenueBase Database · checked Sep 19, 2026
10	Elmeasure	Indirect evidence	Bangalore, IndiaHQ checked Sep 19, 2026	501-1,000	446 contacts →
	Indirect evidence “Founded in 2004 by a passionate team of entrepreneurs with deep expertise in energy management, Elmeasure began with a bold mission: to help industries, businesses, and…” Source: RevenueBase Database · checked Sep 19, 2026
11	Ampin Energy Transition	Indirect evidence	New Delhi, IndiaHQ checked Sep 19, 2026	201-500	422 contacts →
	Indirect evidence “AMPIN Energy Transition is India’s leading renewable energy transition company with a total portfolio of 5GWp+ spread across 23 states in the country.” Source: RevenueBase Database · checked Sep 19, 2026
12	Solarium Green Energy Limited	Partial evidence	Ahmedabad, IndiaHQ checked Sep 19, 2026	201-500	415 contacts →
	Partial evidence “is transforming India’s renewable energy landscape by delivering comprehensive solar solutions that empower homes, businesses, and industries to embrace clean energy.” Source: RevenueBase Database · checked Sep 19, 2026
13	O2 Power	Indirect evidence	Gurugram, IndiaHQ checked Sep 19, 2026	201-500	412 contacts →
	Indirect evidence “O2 Power Private Limited is a renewable energy platform that develops and executes renewable energy projects for distribution utilities and C&I customers in India.” Source: RevenueBase Database · checked Sep 19, 2026
14	Amplus Solar	Partial evidence	Gurgaon, IndiaHQ checked Sep 19, 2026	201-500	397 contacts →
	Partial evidence “Amplus is Asia's leading distributed clean energy company providing energy solutions to commercial and industrial customers by setting up on-site solar projects (rooftop and…” Source: RevenueBase Database · checked Sep 19, 2026
15	Applied Energy Technologies Private Limited	Indirect evidence	Gurugram, IndiaHQ checked Sep 19, 2026	201-500	324 contacts →
	Indirect evidence “At Applied Energy Technologies, we are redefining the energy landscape with cost-efficient, distributed, and sustainable energy solutions.” Source: RevenueBase Database · checked Sep 19, 2026
16	Kosol Energie	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 19, 2026	501-1,000	301 contacts →
	Indirect evidence “At KOSOL Energie, a core team of experienced engineers and trained professionals collaborate seamlessly to generate innovative solutions aimed at replacing fossil fuels with…” Source: RevenueBase Database · checked Sep 19, 2026
17	Apollo Green Energy Limited	Indirect evidence	Gurgaon, IndiaHQ checked Sep 19, 2026	1,001-5,000	287 contacts →
	Indirect evidence “Apollo Green Energy Limited (AGEL) is a leading EPC company specializing in renewable energy solutions.” Source: RevenueBase Database · checked Sep 19, 2026
18	Kshema Power	Indirect evidence	Chennai, IndiaHQ checked Sep 19, 2026	51-200	273 contacts →
	Indirect evidence “Kshema Power India Private Limited was founded by Dr.” Source: RevenueBase Database · checked Sep 19, 2026
19	GEON	Indirect evidence	Mumbai, IndiaHQ checked Sep 19, 2026	201-500	223 contacts →
	Indirect evidence “At Geon, we Bridge innovation and sustainability to turn Green Energy ON.” Source: RevenueBase Database · checked Sep 19, 2026
20	Sorigin Group	Indirect evidence	Pune, IndiaHQ checked Sep 19, 2026	201-500	218 contacts →
	Indirect evidence “SORIGIN GROUP is a comprehensive and bespoke 360° services provider that empowers its partners to achieve long-term success through collaboration and technology.” Source: RevenueBase Database · checked Sep 19, 2026
21	D2o	Indirect evidence	Jaipur, IndiaHQ checked Sep 19, 2026	51-200	217 contacts →
	Indirect evidence “Design2Occupancy Services LLP (D2O) is a leading organization providing a platform and solutions in Energy Efficiency Analysis and Energy Code Compliances, Climate Change…” Source: RevenueBase Database · checked Sep 19, 2026
22	Jakson Group	Indirect evidence	Noida, IndiaHQ checked Sep 19, 2026	1,001-5,000	207 contacts →
	Indirect evidence “Established in 1947, headquartered in Noida, India, Jakson Group has emerged as a distinguished and leading energy, electrical EPC, and infrastructure company with a profound…” Source: RevenueBase Database · checked Sep 19, 2026
23	Gruner Renewable Energy	Indirect evidence	Noida, IndiaHQ checked Sep 19, 2026	501-1,000	196 contacts →
	Indirect evidence “Gruner Renewable Energy is a sustainable energy company committed to creating renewable fuel from biomass and biowaste.” Source: RevenueBase Database · checked Sep 19, 2026
24	Engie India	Indirect evidence	Pune, IndiaHQ checked Sep 19, 2026	10001+	183 contacts →
	Indirect evidence “ENGIE India plays a pivotal role in advancing ENGIE’s global ambition to accelerate the transition to a carbon-neutral economy.” Source: RevenueBase Database · checked Sep 19, 2026
25	Gensol Group	Indirect evidence	Ahmadabad, IndiaHQ checked Sep 19, 2026	1,001-5,000	165 contacts →
	Indirect evidence “Gensol, a frontrunner in the Solar and Renewables Industry, is a rare mix of youth and experience.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: clean tech companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names clean tech companies.
Partial evidence: Its own public description names part of clean tech companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clean tech companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,601 clean tech companies based in India

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Clean tech companies based in India at a glance

As of Sep 19, 2026

17.5%Verified-email coverage

23.9Average contacts per company

11-50Median size (employees)

6.1%Largest-city concentration · Pune

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

654

11-50

637

51-200

216

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 1,601 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among clean tech companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in India whose own description of what they do matches “clean tech companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names clean tech companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among clean tech companies, and records with no verified work email. Companies headquartered outside India are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 6,708 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Clean tech companies by metro

Clean tech companies in Pune97
Clean tech companies in New Delhi96
Clean tech companies in Mumbai89
Clean tech companies in Chennai85
Clean tech companies in Hyderabad64
Clean tech companies in Noida63
Clean tech companies in Ahmedabad62
Clean tech companies in Bangalore52
Clean tech companies in Bengaluru51
Clean tech companies in Gurugram43
Clean tech companies in Delhi40
Clean tech companies in Gurgaon40
Clean tech companies in Jaipur36
Clean tech companies in Vadodara34
Clean tech companies in Kolkata32
Clean tech companies in Lucknow26
Clean tech companies in Surat26

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names clean tech companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many clean tech companies are there based in India?

RevenueBase identified 1,601 clean tech companies headquartered in India as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

RENEW, headquartered in Gurugram, tops this list with the largest team on record.

Which city has the most clean tech companies?

Pune leads with 97 headquartered companies, followed by New Delhi (96) and Mumbai (89).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 6,708 verified decision-maker contacts tracked across these 1,601 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.