Company lists · Data refreshed September 2026
Top 25 Word of mouth marketing agencies worldwide
RevenueBase identified 2,303 word of mouth marketing agencies worldwide as of September 2026 and tracks 18,316 professional contacts across them, including 4,216 with verified work emails. India is the largest market and London the largest hub.
This list covers word of mouth marketing agencies worldwide, 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. Country and city lists for word of mouth marketing agencies follow the table.
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.
The 25 largest word of mouth marketing agencies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 637 contacts → | ||||
Partial evidence “Later is the leading influencer marketing and social partner built on insight, not guesswork.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 343 contacts → | ||||
Partial evidence “Goat is an award-winning global influencer marketing agency.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 270 contacts → | ||||
Strong evidence “Partipost is a crowd marketing platform that connects brands to influencers and everyday people, helping brands access word-of-mouth advertising among social media users with an…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 245 contacts → | ||||
Indirect evidence “nascida em uma época em que os meios digitais transformaram a interação com consumidores, a Ampfy trabalha na construção de marcas genuinamente compartilháveis.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 233 contacts → | ||||
Indirect evidence “IZEA is a full-service, pure-play creator economy agency powered by our proprietary ZED technology, with a mission to to make Creator Economy solutions for marketers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 199 contacts → | ||||
Partial evidence “Eleve comes from the French word élève, which means ADVANCED.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 176 contacts → | ||||
Partial evidence “Coolr is an award-winning social media and influencer marketing agency, with offices in London.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 165 contacts → | ||||
Indirect evidence “Collectively-part of the Brandtech Group (formerly You & Mr Jones)-is a values-centered global social influence company providing our clients with the most sophisticated…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 158 contacts → | ||||
Indirect evidence “WOO, the agency founded in 2015, is transforming the way brands interact with their audiences.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 152 contacts → | ||||
Partial evidence “India's leading influencer marketing company (and now a 360° social solution!), Chtrbox helps modern brands create the chatter that matters Since 2016, we've pioneered data-driven…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 140 contacts → | ||||
Partial evidence “Open Influence is a global, multi-award-winning creator marketing agency setting the standard for how brands connect with culture across every major social platform.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 138 contacts → | ||||
Indirect evidence “Jungle Creations is a global social and influencer agency powered by publishing.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 128 contacts → | ||||
Strong evidence “Veritas Communications is a North American agency that walks the line between public relations and marketing to inspire positive word-of-mouth and drive brand preference.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 108 contacts → | ||||
Indirect evidence “En Influence hacemos el match perfecto entre marcas e influencers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 106 contacts → | ||||
Partial evidence “SocioClout facilitates brands to explore influencer marketing strategies through our strategic counselling and creative approaches.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 97 contacts → | ||||
Indirect evidence “Fight skyrocketing paid media costs by turning your customers into a primary vehicle for acquisition, awareness, and activation with Extole.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 95 contacts → | ||||
Partial evidence “Famous Allstars is Indonesia’s first and leading influencer marketing company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 88 contacts → | ||||
Indirect evidence “Our team of innovators, visionaries and creative thinkers specialise in customer connection and social first brand growth working with some of the world’s most exciting brands to…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 88 contacts → | ||||
Indirect evidence “At SocialPubli, we believe that we are all influencers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 83 contacts → | ||||
Indirect evidence “BERT's a digital agency that leverages the power of community.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 83 contacts → | ||||
Partial evidence “The NextBee Engagement Marketing Platform helps businesses run successful referral and loyalty marketing campaigns every day.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 82 contacts → | ||||
Indirect evidence “Accelion builds, grows, and maintains ongoing referral pipelines that provide differentiated product positioning and incremental revenue for our multinational clients.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 81 contacts → | ||||
Partial evidence “Boomlet Media Group is an integrated Influencer Marketing agency that works as an organic communications strategy and execution partner with leading brands and institutions in…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 75 contacts → | ||||
Indirect evidence “The Duel Brand Advocacy Platform enables brands to mobilize and manage entire communities of social affiliates, content creators and micro-influencers to acquire customers and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 66 contacts → | ||||
Indirect evidence “Scooperz is a social-first agency helping global brands grow through strategic influencer partnerships, creative social media campaigns, and active community management.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: word of mouth 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 word of mouth marketing agencies.
- Partial evidence
- Its own public description names part of word of mouth marketing agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name word of mouth 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 2,303 word of mouth marketing agencies worldwide
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Word of mouth marketing agencies worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 word of mouth 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.
- Coverage
- Every country. Country and city lists for word of mouth marketing agencies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “word of mouth 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 word of mouth 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 word of mouth marketing agencies, and records with no verified work email.
- 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, 4,216 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.
Word of mouth marketing agencies by location
21 lists · largest firstEvery Word of mouth marketing agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Word of mouth marketing agencies based in India419
- Word of mouth marketing agencies based in the United States384
- Word of mouth marketing agencies based in the United Kingdom151
- Word of mouth marketing agencies based in Brazil99
- Word of mouth marketing agencies based in France88
- Word of mouth marketing agencies based in Germany63
- Word of mouth marketing agencies based in Canada51
- Word of mouth marketing agencies based in Spain40
- Word of mouth marketing agencies based in the Netherlands40
- Word of mouth marketing agencies based in the United Arab Emirates40
- Word of mouth marketing agencies based in Australia38
- Word of mouth marketing agencies based in Türkiye30
- Word of mouth marketing agencies based in Poland26
Cities
- Word of mouth marketing agencies based in London, United Kingdom102
- Word of mouth marketing agencies based in Mumbai, India69
- Word of mouth marketing agencies based in Sao Paulo, Brazil59
- Word of mouth marketing agencies based in Los Angeles, United States58
- Word of mouth marketing agencies based in New Delhi, India55
- Word of mouth marketing agencies based in New York, United States50
- Word of mouth marketing agencies based in Paris, France47
- Word of mouth marketing agencies based in Gurgaon, India39
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 word of mouth 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 word of mouth marketing agencies are there worldwide?
RevenueBase identified 2,303 word of mouth marketing agencies worldwide 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?
LATER, headquartered in Boston, tops this list with the largest team on record.
Which country has the most word of mouth marketing agencies?
India leads with 419 companies, followed by the United States (384) and the United Kingdom (151). Every word of mouth marketing agencies list by country and city is linked on this page.
Which city has the most word of mouth marketing agencies?
London leads with 103 headquartered companies, followed by Mumbai (69) and Sao Paulo (59).
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 4,216 verified decision-maker contacts tracked across these 2,303 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.