Company lists · Data refreshed September 2026

Top 25 Smart city decarbonization companies based in India

Name: Smart city decarbonization 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 140 companies tracked

RevenueBase identified 140 smart city decarbonization companies headquartered in India as of September 2026 and tracks 7,624 professional contacts across them, including 2,600 with verified work emails. Mumbai is the largest hub.

This list covers smart city decarbonization 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

140Companies

7,624Contacts tracked

2,600Verified emails

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The 25 largest smart city decarbonization companies based in India

Ranked by team size

Top 25 of 140 smart city decarbonization 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 smart city decarbonization 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	Cleanmax	Indirect evidence	Mumbai, IndiaHQ checked Sep 16, 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 16, 2026
3	Serentica	Indirect evidence	Gurugram, IndiaHQ checked Sep 16, 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 16, 2026
4	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
5	Vecmocon Technologies	Indirect evidence	New Delhi, IndiaHQ checked Sep 16, 2026	51-200	214 contacts →
	Indirect evidence “Vecmocon Technologies is a Deep-Tech startup focused on sustainable and clean mobility.” Source: RevenueBase Database · checked Sep 16, 2026
6	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
7	Hexa Climate	Partial evidence	Gurgaon, IndiaHQ checked Sep 16, 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 16, 2026
8	Fitsol	Indirect evidence	Gurugram, IndiaHQ checked Sep 16, 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 16, 2026
9	Greenovative Energy	Indirect evidence	Pune, IndiaHQ checked Sep 16, 2026	11-50	58 contacts →
	Indirect evidence “Greenovative Energy stands at the forefront of the global push towards net-zero targets by 2050.” Source: RevenueBase Database · checked Sep 16, 2026
10	Racanaa Energy	Indirect evidence	Bangalore, IndiaHQ checked Sep 16, 2026	201-500	57 contacts →
	Indirect evidence “Racanaa Energy is focused on helping commercial establishments achieve their objective of becoming sustainable from an energy and environmental standpoint.” Source: RevenueBase Database · checked Sep 16, 2026
11	Core Carbonx Solutions PVT LTD	Indirect evidence	Hyderabad, IndiaHQ checked Sep 16, 2026	51-200	55 contacts →
	Indirect evidence “CoreCarbonX is a carbon trading, environmental consulting, and sustainability advisory firm.” Source: RevenueBase Database · checked Sep 16, 2026
12	ENLOG	Indirect evidence	Gurgaon, IndiaHQ checked Sep 16, 2026	51-200	49 contacts →
	Indirect evidence “Enlog is a technology startup making new-age energy management through energy intelligence.” Source: RevenueBase Database · checked Sep 16, 2026
13	Edgegrid	Indirect evidence	Hyderabad, IndiaHQ checked Sep 16, 2026	11-50	31 contacts →
	Indirect evidence “EdgeGrid changes the way India produces and consumes energy.” Source: RevenueBase Database · checked Sep 16, 2026
14	Altilium	Indirect evidence	Bangalore, IndiaHQ checked Sep 16, 2026	11-50	30 contacts →
	Indirect evidence “Altilium is an Integrated Energy services platform which deals in Renewable Energy supply and Sustainability services.” Source: RevenueBase Database · checked Sep 16, 2026
15	Hisun Green Power	Indirect evidence	Bengaluru, IndiaHQ checked Sep 16, 2026	51-200	26 contacts →
	Indirect evidence “At Hisun Green Power, we are dedicated to forging a pathway towards a low-carbon world.” Source: RevenueBase Database · checked Sep 16, 2026
16	Terrablu Climate Technologies PVT LTD	Indirect evidence	Pune, IndiaHQ checked Sep 16, 2026	11-50	24 contacts →
	Indirect evidence “We are a climate tech company.” Source: RevenueBase Database · checked Sep 16, 2026
17	Greenated Clima Tech	Indirect evidence	Villupuram, IndiaHQ checked Sep 16, 2026	11-50	22 contacts →
	Indirect evidence “Greenated Clima Tech that provide solutions for the wide range of energy, emission and other industrial solutions with embedded software and essential research to transform the…” Source: RevenueBase Database · checked Sep 16, 2026
18	Enfragy Solutions India Private Limited	Indirect evidence	Kolkata, IndiaHQ checked Sep 16, 2026	51-200	19 contacts →
	Indirect evidence “Enfragy designs and delivers solutions that protect the environment, reduce carbon footprint and are sustainable in nature.” Source: RevenueBase Database · checked Sep 16, 2026
19	Integrative Design Solutions	Partial evidence	New Delhi, IndiaHQ checked Sep 16, 2026	11-50	17 contacts →
	Partial evidence “Integrative Design Solutions (IDS) is a climate infrastructure and building decarbonization advisory firm helping governments, developers, institutions, and organizations deliver…” Source: RevenueBase Database · checked Sep 16, 2026
20	Erda Illumine LOW Carbon Solutions	Partial evidence	Kolkata, IndiaHQ checked Sep 16, 2026	11-50	16 contacts →
	Partial evidence “At Erda Illumine Low Carbon Solutions Pvt Ltd.(EILCS), we have been spearheading decarbonization for over 13 years now, turning climate action into long term carbon assets for…” Source: RevenueBase Database · checked Sep 16, 2026
21	Enspar Sustainability PVT Ltd. Enspar Energy Solutions P LTD	Indirect evidence	Bangalore, IndiaHQ checked Sep 16, 2026	11-50	16 contacts →
	Indirect evidence “ENSPAR offers a unique range of Energy Saving Solutions that could save you up to 40% of your energy costs.” Source: RevenueBase Database · checked Sep 16, 2026
22	Offsetgo	Indirect evidence	Gurugram, IndiaHQ checked Sep 16, 2026	11-50	16 contacts →
	Indirect evidence “OffsetGo is India's first comprehensive and blockchain-based carbon marketplace.” Source: RevenueBase Database · checked Sep 16, 2026
23	JB Power Consultants Private Limited	Partial evidence	Gurugram, IndiaHQ checked Sep 16, 2026	11-50	16 contacts →
	Partial evidence “JB Power Consultants, an independent Renewable Energy and Decarbonization company can assist you on its journey to a sustainable, long-term application of renewable energy and…” Source: RevenueBase Database · checked Sep 16, 2026
24	Ecoveda Climate	Indirect evidence	New Delhi, IndiaHQ checked Sep 16, 2026	11-50	16 contacts →
	Indirect evidence “Ecoveda Climate specialises in Carbon Project Development, alongside Carbon consulting, Decarbonisation and ESG advisory services.” Source: RevenueBase Database · checked Sep 16, 2026
25	Zenith Energy Services PVT LTD	Indirect evidence	Hyderabad, IndiaHQ checked Sep 16, 2026	1-10	13 contacts →
	Indirect evidence 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: smart city decarbonization 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 smart city decarbonization companies.
Partial evidence: Its own public description names part of smart city decarbonization companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name smart city decarbonization 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 140 smart city decarbonization companies based in India

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Smart city decarbonization companies based in India at a glance

As of Sep 16, 2026

34.1%Verified-email coverage

54.5Average contacts per company

11-50Median size (employees)

13.6%Largest-city concentration · Mumbai

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 140 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 smart city decarbonization 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 “smart city decarbonization 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 smart city decarbonization 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 smart city decarbonization 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, 2,600 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.

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 smart city decarbonization 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 smart city decarbonization companies are there based in India?

RevenueBase identified 140 smart city decarbonization 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 smart city decarbonization companies?

Mumbai leads with 19 headquartered companies, followed by Hyderabad (12) and New Delhi (11).

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 2,600 verified decision-maker contacts tracked across these 140 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.