Company lists · Data refreshed September 2026

Top 25 Sustainability marketing agencies based in India

Name: Sustainability marketing agencies based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 1,320 companies tracked

RevenueBase identified 1,320 sustainability marketing agencies headquartered in India as of September 2026 and tracks 11,128 professional contacts across them, including 1,438 with verified work emails. Mumbai is the largest hub.

This list covers sustainability marketing agencies 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 29, 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 29, 2026 86% judged on-target in blind review

1,320Companies

11,128Contacts tracked

1,438Verified emails

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The 25 largest sustainability marketing agencies based in India

Ranked by team size

Top 25 of 1,320 sustainability marketing agencies based in India, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to sustainability marketing agencies: 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	Dentsu India	Indirect evidence	Mumbai, IndiaHQ checked Sep 29, 2026	10001+	691 contacts →
	Indirect evidence “Champions for meaningful progress.” Source: RevenueBase Database · checked Sep 29, 2026
2	SIPL	Indirect evidence	Noida, IndiaHQ checked Sep 29, 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 29, 2026
3	Stirrup Communication Consultants	Indirect evidence	Mumbai, IndiaHQ checked Sep 29, 2026	51-200	176 contacts →
	Indirect evidence “Stirrup Communication Consultants Pvt Ltd (Stirrup), previously known as AICL Communications Limited, is a corporate reporting, ESG, stakeholder communications consultancy.” Source: RevenueBase Database · checked Sep 29, 2026
4	Greentree Global	Partial evidence	Noida, IndiaHQ checked Sep 29, 2026	51-200	143 contacts →
	Partial 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 29, 2026
5	The Marcom Avenue	Partial evidence	Gurgaon, IndiaHQ checked Sep 29, 2026	201-500	107 contacts →
	Partial evidence “A 360- degree marketing and Communication agency and your partners in accelerating growth exponentially through creative strategies and ROI driven performance metrics.” Source: RevenueBase Database · checked Sep 29, 2026
6	Trizone Communications	Indirect evidence	Vadodara, IndiaHQ checked Sep 29, 2026	11-50	97 contacts →
	Indirect evidence “Hello!” Source: RevenueBase Database · checked Sep 29, 2026
7	Abybaby Events Private Limited	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	51-200	95 contacts →
	Partial evidence “Abybaby is an Agency that has crafted specialization in Branding, Marketing and Communication Services by bridging the gap between the Consumers and Clients.” Source: RevenueBase Database · checked Sep 29, 2026
8	180 Degrees Consulting Nsut	Indirect evidence	New Delhi, IndiaHQ checked Sep 29, 2026	11-50	85 contacts →
	Indirect evidence “180 Degrees Consulting NSUT would help socially conscious organizations make a significant impact by providing them with sustainable solutions to face their challenges.” Source: RevenueBase Database · checked Sep 29, 2026
9	Tattva Creations Pvt. LTD	Partial evidence	New Delhi, IndiaHQ checked Sep 29, 2026	51-200	74 contacts →
	Partial evidence “A dynamic marketing and brand communications company rooted in a digital-first approach.” Source: RevenueBase Database · checked Sep 29, 2026
10	Synapse Marketing Consultancy Pvt. LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 29, 2026	11-50	72 contacts →
	Partial evidence “At Synapse, we ideate with the world’s best companies to develop marketing strategies & creative communications, for brands to consistently grow and deliver positive results.” Source: RevenueBase Database · checked Sep 29, 2026
11	Oktobuzz	Partial evidence	Mumbai, IndiaHQ checked Sep 29, 2026	51-200	70 contacts →
	Partial evidence “OktoBuzz is a brand consultancy and integrated marketing agency.” Source: RevenueBase Database · checked Sep 29, 2026
12	Envint	Partial evidence	Mumbai, IndiaHQ checked Sep 29, 2026	11-50	70 contacts →
	Partial evidence “Envint is a sustainability & ESG solutions firm, founded with a purpose to shape a more liveable planet for the coming generations.” Source: RevenueBase Database · checked Sep 29, 2026
13	The Madras Branding Company	Indirect evidence	Chennai, IndiaHQ checked Sep 29, 2026	51-200	70 contacts →
	Indirect evidence “We are creative catalysts.” Source: RevenueBase Database · checked Sep 29, 2026
14	Modifyed Digital	Partial evidence	Noida, IndiaHQ checked Sep 29, 2026	11-50	67 contacts →
	Partial evidence “We are an independent digital marketing communications agency focussed on digital marketing projects which are aimed at growing businesses, sustainably.” Source: RevenueBase Database · checked Sep 29, 2026
15	GEO Climate Risk Solutions PVT LTD	Partial evidence	Visakhapatnam, IndiaHQ checked Sep 29, 2026	11-50	58 contacts →
	Partial evidence “At GCRS, we stand at the forefront of innovation and expertise, dedicated to tackling the complex challenges of environmental sustainability.” Source: RevenueBase Database · checked Sep 29, 2026
16	RBC Worldwide	Indirect evidence	Hyderabad, IndiaHQ checked Sep 29, 2026	11-50	58 contacts →
	Indirect evidence “RBC Worldwide is one of the most renowned branding and advertising companies in Hyderabad, delivering the full gamut of brand development & management, advertising & digital…” Source: RevenueBase Database · checked Sep 29, 2026
17	Ascent Brand Communications PVT LTD	Indirect evidence	Indore, IndiaHQ checked Sep 29, 2026	51-200	56 contacts →
	Indirect evidence “Ascent Brand Communications Pvt.” Source: RevenueBase Database · checked Sep 29, 2026
18	Core Carbonx Solutions PVT LTD	Partial evidence	Hyderabad, IndiaHQ checked Sep 29, 2026	51-200	55 contacts →
	Partial evidence “CoreCarbonX is a carbon trading, environmental consulting, and sustainability advisory firm.” Source: RevenueBase Database · checked Sep 29, 2026
19	Bridgegap Management Consultants LLP	Indirect evidence	Hyderabad, IndiaHQ checked Sep 29, 2026	11-50	55 contacts →
	Indirect evidence “Bridgegap Consultants is an integrated Strategic planning, Brand strategy, and Business Optimization Consultancy.” Source: RevenueBase Database · checked Sep 29, 2026
20	Meraqi Digital	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	11-50	50 contacts →
	Partial evidence “We are an independent marketing communications consultancy dedicated to delivering one thing really well: doing what’s right to help our clients win.” Source: RevenueBase Database · checked Sep 29, 2026
21	A A Garg & CO	Indirect evidence	Mumbai, IndiaHQ checked Sep 29, 2026	51-200	50 contacts →
	Indirect evidence “A2G, officially known as A A Garg & Co, is a premier management consulting firm specializing in ESG, Circular Economy, EPR, Tech-Enabled Solutions, Corporate Finance, and Business…” Source: RevenueBase Database · checked Sep 29, 2026
22	Nirantara Ecoventures	Partial evidence	Pune, IndiaHQ checked Sep 29, 2026	11-50	48 contacts →
	Partial evidence “Nirantara offers the much-needed empowerment in sustainability thinking, strategy and practice.” Source: RevenueBase Database · checked Sep 29, 2026
23	Brand AID Pvt. LTD	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 29, 2026	51-200	47 contacts →
	Indirect evidence “Building brands that everyone admires!” Source: RevenueBase Database · checked Sep 29, 2026
24	Environmental Management Centre PVT LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 29, 2026	11-50	46 contacts →
	Indirect evidence “Environmental Management Centre (EMC) was established in 1996.” Source: RevenueBase Database · checked Sep 29, 2026
25	WTX India	Indirect evidence	Hyderabad, IndiaHQ checked Sep 29, 2026	51-200	45 contacts →
	Indirect evidence “Cupid of creativity, matchmaking brands, and audiences.” Source: RevenueBase Database · checked Sep 29, 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: sustainability marketing agencies. 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 sustainability marketing agencies.
Partial evidence: Its own public description names part of sustainability marketing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainability marketing agencies. 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 1,320 sustainability marketing agencies based in India

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Sustainability marketing agencies based in India at a glance

As of Sep 29, 2026

12.9%Verified-email coverage

8.4Average contacts per company

1-10Median size (employees)

10.8%Largest-city concentration · Mumbai

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

792

11-50

459

51-200

201-500

501-1,000

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 1,320 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 sustainability marketing agencies, 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 “sustainability marketing agencies”. 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 sustainability marketing agencies), 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 sustainability marketing agencies, 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, 1,438 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 29, 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.

Sustainability marketing agencies 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 sustainability marketing agencies, 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 sustainability marketing agencies are there based in India?

RevenueBase identified 1,320 sustainability marketing agencies 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?

Dentsu India, headquartered in Mumbai, tops this list with the largest team on record.

Which city has the most sustainability marketing agencies?

Mumbai leads with 142 headquartered companies, followed by Bangalore (117) and New Delhi (98).

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 1,438 verified decision-maker contacts tracked across these 1,320 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 29, 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.