Company lists · Data refreshed September 2026

Top 25 Decarbonization consultancies based in India

Name: Decarbonization consultancies based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 981 companies tracked

RevenueBase identified 981 decarbonization consultancies headquartered in India as of September 2026 and tracks 16,309 professional contacts across them, including 4,353 with verified work emails. Mumbai is the largest hub.

This list covers decarbonization consultancies 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 28, 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 28, 2026 86% judged on-target in blind review

981Companies

16,309Contacts tracked

4,353Verified emails

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The 25 largest decarbonization consultancies based in India

Ranked by team size

Top 25 of 981 decarbonization consultancies based in India, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to decarbonization consultancies: 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 28, 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 28, 2026
2	Cleanmax	Indirect evidence	Mumbai, IndiaHQ checked Sep 28, 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 28, 2026
3	Chakr Innovation	Indirect evidence	Gurugram, IndiaHQ checked Sep 28, 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 28, 2026
4	Serentica	Indirect evidence	Gurugram, IndiaHQ checked Sep 28, 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 28, 2026
5	SIPL	Indirect evidence	Noida, IndiaHQ checked Sep 28, 2026	n/a	400 contacts →
	Indirect evidence “SIPL Pvt Ltd is an established and reputed firm in the Sustainable domain since 2008.” Source: RevenueBase Database · checked Sep 28, 2026
6	Resonance Energy Private Limited	Indirect evidence	IndiaHQ checked Sep 28, 2026	501-1,000	275 contacts →
	Indirect evidence “Global gas and power markets are expanding fast and becoming increasingly integrated and complex - and the need for market intelligence and informed advice based on deep industry…” Source: RevenueBase Database · checked Sep 28, 2026
7	Sgurrenergy	Indirect evidence	Pune, IndiaHQ checked Sep 28, 2026	201-500	226 contacts →
	Indirect evidence “SgurrEnergy was originally established in Glasgow, UK in 2002 with an aim to excel in renewable energy consulting.” Source: RevenueBase Database · checked Sep 28, 2026
8	EKI Energy Services LTD Enking International	Indirect evidence	Indore, IndiaHQ checked Sep 28, 2026	201-500	203 contacts →
	Indirect evidence “EKI Energy Services Ltd.(EKI), erstwhile EnKing International in the climate sector globally, is a leading Carbon Credit Developer & Supplier across the globe.” Source: RevenueBase Database · checked Sep 28, 2026
9	Engie India	Indirect evidence	Pune, IndiaHQ checked Sep 28, 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 28, 2026
10	Mercados Energy Markets India	Indirect evidence	New Delhi, IndiaHQ checked Sep 28, 2026	51-200	178 contacts →
	Indirect evidence “Mercados Energy Markets India Private Limited (Mercados EMI) is a global consulting firm specializing in power and energy.” Source: RevenueBase Database · checked Sep 28, 2026
11	Lead Consultancy And Engineering Services India PVT LTD	Indirect evidence	Bengaluru, IndiaHQ checked Sep 28, 2026	51-200	174 contacts →
	Indirect evidence “LEAD Consultancy & Engineering Services (India) Private Limited (LCES) has been started by a team of qualified professionals with vast experience and expertise in the areas of…” Source: RevenueBase Database · checked Sep 28, 2026
12	Abhitech Energycon LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 28, 2026	201-500	158 contacts →
	Indirect evidence “At Abhitech Energycon Ltd, we specialise in advanced combustion catalysts, specialty chemicals and technologies that support decarbonisation and energy optimisation across Steel…” Source: RevenueBase Database · checked Sep 28, 2026
13	Greenfinch Real Estate Engineers & Consultants	Indirect evidence	Jaipur, IndiaHQ checked Sep 28, 2026	501-1,000	144 contacts →
	Indirect evidence “Greenfinch Real Estate Engineers and Consultants Pvt.” Source: RevenueBase Database · checked Sep 28, 2026
14	Greentree Global	Indirect evidence	Noida, IndiaHQ checked Sep 28, 2026	51-200	143 contacts →
	Indirect evidence “GreenTree Global is one of the leading Sustainability Consulting organisations providing Energy Efficiency & Climate Change Services like Integrated Sustainability Services…” Source: RevenueBase Database · checked Sep 28, 2026
15	First Energy A Thermax Group Company	Indirect evidence	Pune, IndiaHQ checked Sep 28, 2026	51-200	141 contacts →
	Indirect evidence “First Energy, a leading renewable energy manager that help its customers’ transition to sustainable manufacturing.” Source: RevenueBase Database · checked Sep 28, 2026
16	Earthood	Indirect evidence	Gurgaon, IndiaHQ checked Sep 28, 2026	51-200	140 contacts →
	Indirect evidence “Earthood is a pioneering force in the carbon offset verification industry with a reputation as an internationally acclaimed auditing & certification firm, providing strategic…” Source: RevenueBase Database · checked Sep 28, 2026
17	Hexa Climate	Partial evidence	Gurgaon, IndiaHQ checked Sep 28, 2026	201-500	137 contacts →
	Partial evidence “Hexa Climate is a climate solutions IPP platform focused on Renewable Energy and decarbonization.” Source: RevenueBase Database · checked Sep 28, 2026
18	Blackridge Research & Consulting	Indirect evidence	Hyderabad, IndiaHQ checked Sep 28, 2026	51-200	136 contacts →
	Indirect evidence “Blackridge Research & Consulting is a premier market research and consulting organization covering the Global energy transformation.” Source: RevenueBase Database · checked Sep 28, 2026
19	Techin Process Technologies Pvt. LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 28, 2026	201-500	116 contacts →
	Indirect evidence “Hydrogen Peroxide,#Formaldehyde,#Paraformaldehyde,#Hexamin,#Chlorinated Paraffin Wax,#Acetaldehyde,#Ethyle Acetate,#TMP,#GreenHydrogen,#GreenAmmonia,#GreenMethanol…” Source: RevenueBase Database · checked Sep 28, 2026
20	Spectral Services Consultants Pvt. LTD	Indirect evidence	Noida, IndiaHQ checked Sep 28, 2026	201-500	113 contacts →
	Indirect evidence “Spectral is a 500-employee, Indian market leader in the provision of mechanical, electrical and specialist consultancy services for national and global clients who are looking to…” Source: RevenueBase Database · checked Sep 28, 2026
21	Environmental Design Solutions	Indirect evidence	New Delhi, IndiaHQ checked Sep 28, 2026	11-50	110 contacts →
	Indirect evidence “Environmental Design Solutions [EDS] is a sustainability advisory firm focusing on the built environment.” Source: RevenueBase Database · checked Sep 28, 2026
22	VNV	Indirect evidence	Bangalore, IndiaHQ checked Sep 28, 2026	51-200	106 contacts →
	Indirect evidence “Value Network Ventures (VNV) is a leading global project developer at the intersection of carbon finance and climate adaptation.” Source: RevenueBase Database · checked Sep 28, 2026
23	Fitsol	Indirect evidence	Gurugram, IndiaHQ checked Sep 28, 2026	51-200	97 contacts →
	Indirect evidence “Founded in 2022, Fitsol leverages cutting-edge AI and execution prowess to provide comprehensive decarbonisation solutions.” Source: RevenueBase Database · checked Sep 28, 2026
24	Kosher Climate	Indirect evidence	Bangalore, IndiaHQ checked Sep 28, 2026	51-200	91 contacts →
	Indirect evidence “Kosher Climate is where Corporate aspirations are met with Climate Change Goals.” Source: RevenueBase Database · checked Sep 28, 2026
25	Idam Infrastructure Advisory Pvt. LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 28, 2026	51-200	84 contacts →
	Indirect evidence “Idam Infrastructure Advisory Pvt.” Source: RevenueBase Database · checked Sep 28, 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: decarbonization consultancies. 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 decarbonization consultancies.
Partial evidence: Its own public description names part of decarbonization consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name decarbonization consultancies. 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 981 decarbonization consultancies based in India

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Decarbonization consultancies based in India at a glance

As of Sep 28, 2026

26.7%Verified-email coverage

16.6Average contacts per company

1-10Median size (employees)

9.4%Largest-city concentration · Mumbai

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

515

11-50

348

51-200

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 981 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 decarbonization consultancies, 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 “decarbonization consultancies”. 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 decarbonization consultancies), 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 decarbonization consultancies, 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, 4,353 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 28, 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.

Decarbonization consultancies by metro

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 decarbonization consultancies, 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 decarbonization consultancies are there based in India?

RevenueBase identified 981 decarbonization consultancies 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 decarbonization consultancies?

Mumbai leads with 92 headquartered companies, followed by New Delhi (75) and Pune (71).

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 4,353 verified decision-maker contacts tracked across these 981 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 28, 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.