Company lists · Data refreshed September 2026
Top 25 Health influencer marketing agencies worldwide
RevenueBase identified 7,265 health influencer marketing agencies worldwide as of September 2026 and tracks 63,146 professional contacts across them, including 16,374 with verified work emails. The United States is the largest market and London the largest hub.
This list covers health influencer 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 28, 2026. Country and city lists for health influencer 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 health influencer marketing agencies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,891 contacts → | ||||
Indirect evidence “We make content more rewarding.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,236 contacts → | ||||
Strong evidence “CMI Media Group, a WPP company, is a global, full-service media agency focused solely on health, wellness, life sciences and pharmaceutical marketing.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,173 contacts → | ||||
Strong evidence “Part of Omnicom Health, FCB Health New York is a full-service agency with more than 40 years of experience marketing to healthcare professionals, patients and consumers.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 958 contacts → | ||||
Strong evidence “AREA 23, part of Omnicom Health, is a full-service agency focused on pushing creativity and invention in healthcare marketing to new heights.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 816 contacts → | ||||
Strong evidence “MERGE is a marketing and technology agency built for the intersection of health and wellness.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 747 contacts → | ||||
Partial evidence “PHM is the leading health media agency in the US, built for the modern healthcare experience.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 674 contacts → | ||||
Partial evidence “IPG Health is now Omnicom Health.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 637 contacts → | ||||
Strong evidence “Later is the leading influencer marketing and social partner built on insight, not guesswork.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 591 contacts → | ||||
Partial evidence “Havas Health Network unites Havas Life, Havas Lynx, and Jacques, all wholly owned health and communications networks, with the consumer health businesses and practices of Havas…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 501 contacts → | ||||
Strong evidence “Influential is the global leader in influencer marketing, founded in 2013, and is the only influencer company that is a preferred partner of all major social media platforms.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 459 contacts → | ||||
Indirect evidence “The agency where curiosity builds change.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 384 contacts → | ||||
Partial evidence “GCI Health is the leading global health impact agency built to realize the future of health.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 363 contacts → | ||||
Partial evidence “Mediaplanet delivers best-in-class content marketing campaigns for more than clients around the globe.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 343 contacts → | ||||
Strong evidence “Goat is an award-winning global influencer marketing agency.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 305 contacts → | ||||
Strong evidence “Unlock Health is a full-service marketing communications agency that helps healthcare organizations make authentic connections with patients and communities.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 304 contacts → | ||||
Partial evidence “GSW, powered by Syneos Health, is a full-service communications agency that goes beyond advertising to create personalized brand experiences with a focus in health and wellness.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 270 contacts → | ||||
Partial evidence “Medier is more than just a marketing agency.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 257 contacts → | ||||
Partial evidence “Razorfish Health is a full-service agency built for the modern age of medicine.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 249 contacts → | ||||
Partial evidence “Sudler creates advertising, direct marketing, and sales promotion programs for prescription drugs and over-the-counter medications.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 248 contacts → | ||||
Partial evidence “ConcentricLife is an agency built to answer the rising customer demand on the health marketer.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 232 contacts → | ||||
Strong evidence “Rescue is a full-service marketing agency with a mission to make healthy behaviors easier and more appealing for everyone.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 226 contacts → | ||||
Indirect evidence “Imre is a performance-driven creative agency that connects people to brands for life’s most important decisions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 220 contacts → | ||||
Indirect evidence “Proud to be an Ad Age Best Places to Work 2024.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 214 contacts → | ||||
Strong evidence “BPD is a marketing services firm that delivers the future to healthcare’s leading brands.” Source: RevenueBase Database · checked Sep 28, 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: health influencer 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 health influencer marketing agencies.
- Partial evidence
- Its own public description names part of health influencer marketing agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name health influencer 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 7,265 health influencer marketing agencies worldwide
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Health influencer marketing agencies worldwide at a glance
As of Sep 28, 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 health influencer 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 health influencer marketing agencies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “health influencer 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 health influencer 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 health influencer 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, 16,374 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.
Health influencer marketing agencies by location
45 lists · largest firstEvery Health influencer marketing agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Health influencer marketing agencies based in the United States1,543
- Health influencer marketing agencies based in India1,004
- Health influencer marketing agencies based in the United Kingdom471
- Health influencer marketing agencies based in Brazil403
- Health influencer marketing agencies based in Germany187
- Health influencer marketing agencies based in Spain156
- Health influencer marketing agencies based in Canada150
- Health influencer marketing agencies based in France136
- Health influencer marketing agencies based in Australia133
- Health influencer marketing agencies based in the United Arab Emirates110
- Health influencer marketing agencies based in Türkiye98
- Health influencer marketing agencies based in the Netherlands93
- Health influencer marketing agencies based in Mexico76
- Health influencer marketing agencies based in Italy61
- Health influencer marketing agencies based in Poland57
- Health influencer marketing agencies based in South Africa56
- Health influencer marketing agencies based in Saudi Arabia37
- Health influencer marketing agencies based in the Philippines33
- Health influencer marketing agencies based in Sweden28
- Health influencer marketing agencies based in Denmark27
Cities
- Health influencer marketing agencies based in London, United Kingdom274
- Health influencer marketing agencies based in New York, United States163
- Health influencer marketing agencies based in Sao Paulo, Brazil154
- Health influencer marketing agencies based in Los Angeles, United States146
- Health influencer marketing agencies based in Mumbai, India137
- Health influencer marketing agencies based in New Delhi, India111
- Health influencer marketing agencies based in Dubai, United Arab Emirates86
- Health influencer marketing agencies based in Paris, France75
- Health influencer marketing agencies based in Madrid, Spain57
- Health influencer marketing agencies based in Noida, India55
- Health influencer marketing agencies based in Miami, United States53
- Health influencer marketing agencies based in Istanbul, Türkiye52
- Health influencer marketing agencies based in Toronto, Canada49
- Health influencer marketing agencies based in Atlanta, United States39
- Health influencer marketing agencies based in Gurugram, India38
- Health influencer marketing agencies based in Chicago, United States37
- Health influencer marketing agencies based in Bangalore, India36
- Health influencer marketing agencies based in Berlin, Germany31
- Health influencer marketing agencies based in Hyderabad, India31
- Health influencer marketing agencies based in San Diego, United States29
- Health influencer marketing agencies based in Sydney, Australia29
- Health influencer marketing agencies based in Denver, United States26
- Health influencer marketing agencies based in San Francisco, United States26
- Health influencer marketing agencies based in Warszawa, Poland26
- Health influencer marketing agencies based in Austin, United States25
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 health influencer 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 health influencer marketing agencies are there worldwide?
RevenueBase identified 7,265 health influencer 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?
OI, headquartered in London, tops this list with the largest team on record.
Which country has the most health influencer marketing agencies?
The United States leads with 1,543 companies, followed by India (1,004) and the United Kingdom (471). Every health influencer marketing agencies list by country and city is linked on this page.
Which city has the most health influencer marketing agencies?
London leads with 274 headquartered companies, followed by New York (163) and Sao Paulo (154).
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 16,374 verified decision-maker contacts tracked across these 7,265 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.