Company lists · Data refreshed September 2026

Top 25 Renewable thermal power companies based in India

Name: Renewable thermal power companies based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 487 companies tracked

RevenueBase identified 487 renewable thermal power companies headquartered in India as of September 2026 and tracks 37,875 professional contacts across them, including 5,408 with verified work emails. Chennai is the largest hub.

This list covers renewable thermal power 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 16, 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 16, 2026 86% judged on-target in blind review

487Companies

37,875Contacts tracked

5,408Verified emails

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The 25 largest renewable thermal power companies based in India

Ranked by team size

Top 25 of 487 renewable thermal power companies based in India, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to renewable thermal power 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	Indirect evidence	Gurugram, IndiaHQ checked Sep 16, 2026	1,001-5,000	4,340 contacts →
	Indirect 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 16, 2026
2	JSW Energy LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 16, 2026	1,001-5,000	2,920 contacts →
	Partial evidence “JSW Energy Limited is amongst India’s leading private sector power producing companies that believes in the efficient utilisation of all available resources.” Source: RevenueBase Database · checked Sep 16, 2026
3	Tata Power Renewable Energy Limited	Strong evidence	Mumbai, IndiaHQ checked Sep 16, 2026	501-1,000	2,660 contacts →
	Strong 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 16, 2026
4	Greenko Group	Partial evidence	Hyderabad, IndiaHQ checked Sep 16, 2026	1,001-5,000	2,578 contacts →
	Partial 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 16, 2026
5	Avaada Group	Strong evidence	Mumbai, IndiaHQ checked Sep 16, 2026	5,001-10,000	1,747 contacts →
	Strong evidence “Avaada Group is a diversified clean energy conglomerate focused on the global energy transition, providing solutions in renewable power generation, solar PV manufacturing, green…” Source: RevenueBase Database · checked Sep 16, 2026
6	SAEL	Partial evidence	New Delhi, IndiaHQ checked Sep 16, 2026	1,001-5,000	1,212 contacts →
	Partial 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 16, 2026
7	Azure Power	Partial evidence	Gurugram, IndiaHQ checked Sep 16, 2026	501-1,000	661 contacts →
	Partial evidence “Azure Power is a leading independent sustainable energy solutions provider, and power producer in India.” Source: RevenueBase Database · checked Sep 16, 2026
8	Juniper Green Energy	Indirect evidence	Gurugram, IndiaHQ checked Sep 16, 2026	501-1,000	583 contacts →
	Indirect evidence “Juniper Green Energy Ltd.” Source: RevenueBase Database · checked Sep 16, 2026
9	Hero Future Energies	Partial evidence	New Delhi, IndiaHQ checked Sep 16, 2026	501-1,000	544 contacts →
	Partial 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 16, 2026
10	Serentica	Partial evidence	Gurugram, IndiaHQ checked Sep 16, 2026	201-500	470 contacts →
	Partial 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 16, 2026
11	O2 Power	Strong evidence	Gurugram, IndiaHQ checked Sep 16, 2026	201-500	412 contacts →
	Strong 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 16, 2026
12	Karnataka Power Corporation LTD	Partial evidence	Bengaluru, IndiaHQ checked Sep 16, 2026	5,001-10,000	402 contacts →
	Partial evidence “Karnataka Power Corporation Limited is a premier power generating company of Government of Karnataka.” Source: RevenueBase Database · checked Sep 16, 2026
13	Amplus Solar	Indirect evidence	Gurgaon, IndiaHQ checked Sep 16, 2026	201-500	397 contacts →
	Indirect 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 16, 2026
14	Ayana Renewable Power	Strong evidence	Bangalore, IndiaHQ checked Sep 16, 2026	201-500	362 contacts →
	Strong evidence “Ayana Renewable Power is a leading Independent Power Producer (IPP) in India, committed to accelerating the country’s clean energy transition.” Source: RevenueBase Database · checked Sep 16, 2026
15	Jindal Steel & Power Limited	Partial evidence	Lalitpur, IndiaHQ checked Sep 16, 2026	5,001-10,000	289 contacts →
	Partial evidence “Power sector professional” Source: RevenueBase Database · checked Sep 16, 2026
16	Uprvunl Nigam Limited	Strong evidence	Lucknow, IndiaHQ checked Sep 16, 2026	1,001-5,000	286 contacts →
	Strong evidence “Uprvunl Nigam Limited Service Provider of thermal power” Source: RevenueBase Database · checked Sep 16, 2026
17	Kshema Power	Partial evidence	Chennai, IndiaHQ checked Sep 16, 2026	51-200	273 contacts →
	Partial evidence “Kshema Power India Private Limited was founded by Dr.” Source: RevenueBase Database · checked Sep 16, 2026
18	Mytrah Energy	Strong evidence	Hyderabad, IndiaHQ checked Sep 16, 2026	201-500	221 contacts →
	Strong evidence “Mytrah Energy (India) Private Limited is one of India’s leading renewable Independent Power Producers and a pioneer in this space.” Source: RevenueBase Database · checked Sep 16, 2026
19	Ecoren Energy	Partial evidence	Hyderabad, IndiaHQ checked Sep 16, 2026	1,001-5,000	206 contacts →
	Partial evidence “Ecoren is a premier developer and owner of renewable projects.” Source: RevenueBase Database · checked Sep 16, 2026
20	Gruner Renewable Energy	Partial evidence	Noida, IndiaHQ checked Sep 16, 2026	501-1,000	196 contacts →
	Partial evidence “Gruner Renewable Energy is a sustainable energy company committed to creating renewable fuel from biomass and biowaste.” Source: RevenueBase Database · checked Sep 16, 2026
21	Engie India	Indirect evidence	Pune, IndiaHQ checked Sep 16, 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 16, 2026
22	Rattanindia Power LTD	Partial evidence	New Delhi, IndiaHQ checked Sep 16, 2026	501-1,000	178 contacts →
	Partial evidence “RattanIndia Power Ltd (RPL) is one of the largest private sector Power Generation Company/ Utility Company based out of 5th Floor, Worldmark II, Aerocity, New Delhi, India.” Source: RevenueBase Database · checked Sep 16, 2026
23	Sunsource Energy	Indirect evidence	Noida, IndiaHQ checked Sep 16, 2026	51-200	162 contacts →
	Indirect evidence “SunSource Energy is a leading provider of solar-based energy and storage solutions to commercial, industrial and institutional customers.” Source: RevenueBase Database · checked Sep 16, 2026
24	Thermax Onsite Energy Solutions Limited Toesl	Strong evidence	Pune, IndiaHQ checked Sep 16, 2026	51-200	150 contacts →
	Strong evidence “TOESL, a wholly owned subsidiary of Thermax Group, provides renewable, recycling and recovery solutions under the Build-Own-Operate (BOO) business model.” Source: RevenueBase Database · checked Sep 16, 2026
25	Radiance Renewables	Partial evidence	Mumbai, IndiaHQ checked Sep 16, 2026	51-200	146 contacts →
	Partial evidence “Radiance Renewables, backed by Eversource Capital, specialises in delivering comprehensive green solutions tailored for commercial and industrial clients (C&I).” Source: RevenueBase Database · checked Sep 16, 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: renewable thermal power 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 renewable thermal power companies.
Partial evidence: Its own public description names part of renewable thermal power companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable thermal power 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 487 renewable thermal power companies based in India

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Renewable thermal power companies based in India at a glance

As of Sep 16, 2026

14.3%Verified-email coverage

77.8Average contacts per company

11-50Median size (employees)

6.2%Largest-city concentration · Chennai

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

125

11-50

185

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 487 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 renewable thermal power 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 “renewable thermal power 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 renewable thermal power 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 renewable thermal power 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, 5,408 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 16, 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.

Renewable thermal power companies by metro

Renewable thermal power companies in Chennai30
Renewable thermal power companies in Mumbai30
Renewable thermal power companies in New Delhi29

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 renewable thermal power 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 renewable thermal power companies are there based in India?

RevenueBase identified 487 renewable thermal power 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 renewable thermal power companies?

Chennai leads with 30 headquartered companies, followed by Mumbai (30) and New Delhi (29).

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 5,408 verified decision-maker contacts tracked across these 487 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 16, 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.