Company lists · Data refreshed October 2026

Top 25 Injectable marketing agencies worldwide

RevenueBase identified 50,866 injectable marketing agencies worldwide as of October 2026 and tracks 323,573 professional contacts across them, including 79,092 with verified work emails and 47,611 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers injectable 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 October 1, 2026. Country and city lists for injectable 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Oct 1, 2026 86% judged on-target in blind review
50,866Companies
323,573Contacts tracked
79,092Verified emails
47,611Mobile numbers
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest injectable marketing agencies worldwide

Ranked by team size
Top 25 of 50,866 injectable marketing agencies worldwide, ranked by team size, largest first. Data refreshed Oct 1, 2026. RevenueBase Smart Search rates how each company's information relates to injectable 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Oct 1, 202610001+3,692 contacts →

Indirect evidence

“We discover the breakthroughs that brands need to win.”

Source: RevenueBase Database · checked Oct 1, 2026
2Indirect evidenceLondon, United KingdomHQ checked Oct 1, 2026n/a1,891 contacts →

Indirect evidence

“We make content more rewarding.”

Source: RevenueBase Database · checked Oct 1, 2026
3Indirect evidenceBaltimore, MD, United StatesHQ checked Oct 1, 2026n/a1,255 contacts →

Indirect evidence

“TBC is an independently owned, full-service branding, advertising and strategic communications agency with headquarters in Baltimore, Maryland, USA.”

Source: RevenueBase Database · checked Oct 1, 2026
4Partial evidencePhiladelphia, PA, United StatesHQ checked Oct 1, 20261,001-5,0001,236 contacts →

Partial 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 Oct 1, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Oct 1, 202610001+1,207 contacts →

Indirect evidence

“We build enduring brands that move people and markets through the radical creativity of Truth Well Told™.”

Source: RevenueBase Database · checked Oct 1, 2026
6Partial evidenceNew York, NY, United StatesHQ checked Oct 1, 20261,001-5,0001,173 contacts →

Partial 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 Oct 1, 2026
7Partial evidenceStockport, United KingdomHQ checked Oct 1, 2026501-1,0001,152 contacts →

Partial evidence

“We’ve been delivering marketing and communications since 1961.”

Source: RevenueBase Database · checked Oct 1, 2026
8Indirect evidenceSão Paulo, BrazilHQ checked Oct 1, 20261,001-5,000963 contacts →

Indirect evidence

“Media.Monks, the digital-first operating brand of S4Capital plc, connects content, data & digital media and technology services across one global team built from the bottom up.”

Source: RevenueBase Database · checked Oct 1, 2026
9Partial evidenceNew York, United StatesHQ checked Oct 1, 20261,001-5,000958 contacts →

Partial 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 Oct 1, 2026
10Partial evidenceChicago, IL, United StatesHQ checked Oct 1, 2026501-1,000816 contacts →

Partial evidence

“MERGE is a marketing and technology agency built for the intersection of health and wellness.”

Source: RevenueBase Database · checked Oct 1, 2026
11Indirect evidenceLeeds, United KingdomHQ checked Oct 1, 2026n/a811 contacts →

Indirect evidence

“Uber means over, above more than.”

Source: RevenueBase Database · checked Oct 1, 2026
12Partial evidenceLos Angeles, CA, United StatesHQ checked Oct 1, 2026201-500750 contacts →

Partial evidence

“In business for over 30 years, Allied has built upon its roots in film advertising and publicity to become a global leader in entertainment, culture, and lifestyle marketing.”

Source: RevenueBase Database · checked Oct 1, 2026
13Indirect evidencePhiladelphia, PA, United StatesHQ checked Oct 1, 2026501-1,000747 contacts →

Indirect evidence

“PHM is the leading health media agency in the US, built for the modern healthcare experience.”

Source: RevenueBase Database · checked Oct 1, 2026
14Indirect evidenceLos Angeles, CA, United StatesHQ checked Oct 1, 2026201-500698 contacts →

Indirect evidence

“Team One was founded with one philosophical focus: to construct brands of elevated aspiration and worth by attracting affluent consumers like never before.”

Source: RevenueBase Database · checked Oct 1, 2026
15Indirect evidenceNew York, United StatesHQ checked Oct 1, 20265,001-10,000674 contacts →

Indirect evidence

“IPG Health is now Omnicom Health.”

Source: RevenueBase Database · checked Oct 1, 2026
16Partial evidenceMansfield, United KingdomHQ checked Oct 1, 20261,001-5,000649 contacts →

Partial evidence

“We’re Linney, a connected marketing partner helping brands turn complexity into clarity across digital, physical and ecommerce channels.”

Source: RevenueBase Database · checked Oct 1, 2026
17Partial evidenceLondon, United KingdomHQ checked Oct 1, 2026201-500640 contacts →

Partial evidence

“Influencer is a global creator marketing agency on a mission to shape the future of marketing by humanizing brands.”

Source: RevenueBase Database · checked Oct 1, 2026
18Partial evidenceBridgewater, NJ, United StatesHQ checked Oct 1, 2026501-1,000628 contacts →

Partial evidence

“Viseven is a global team of over 700 professionals, providing pharma marketing services as a dedicated MarTech Service Provider for Life Sciences.”

Source: RevenueBase Database · checked Oct 1, 2026
19Indirect evidenceLincoln, NE, United StatesHQ checked Oct 1, 2026n/a573 contacts →

Indirect evidence

“Hi, we’re Agent.”

Source: RevenueBase Database · checked Oct 1, 2026
20Indirect evidenceCape Town, South AfricaHQ checked Oct 1, 2026501-1,000543 contacts →

Indirect evidence

“In 1948, David Ogilvy founded the agency that would become Ogilvy & Mather.”

Source: RevenueBase Database · checked Oct 1, 2026
21Indirect evidenceUnited KingdomHQ checked Oct 1, 2026501-1,000502 contacts →

Indirect evidence

“Ogilvy UK inspires brands and people to impact the world.”

Source: RevenueBase Database · checked Oct 1, 2026
22Indirect evidenceKnoxville, TN, United StatesHQ checked Oct 1, 2026201-500496 contacts →

Indirect evidence

“Tombras is a 450+ person, full-service agency with a digital mindset.”

Source: RevenueBase Database · checked Oct 1, 2026
23Indirect evidenceNew York, NY, United StatesHQ checked Oct 1, 2026201-500480 contacts →

Indirect evidence

“21GRAMS is the advertising and education arm of Real Chemistry.”

Source: RevenueBase Database · checked Oct 1, 2026
24Indirect evidenceWashington, NC, United StatesHQ checked Oct 1, 2026n/a468 contacts →

Indirect evidence

“NOBODY® is a social-first agency built for complex challenges, serving leading brands, nonprofits, and the Fortune 500.”

Source: RevenueBase Database · checked Oct 1, 2026
25Indirect evidenceManchester, United KingdomHQ checked Oct 1, 20261,001-5,000459 contacts →

Indirect evidence

“We are a leading healthcare communications agency with a full-service global offering and 400 multi-disciplinary specialists in Manchester, London, and New York.”

Source: RevenueBase Database · checked Oct 1, 2026

Showing 25 of 50,866 injectable marketing agencies worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 79,092 reachable decision-makers.

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Injectable marketing agencies worldwide at a glance

As of Oct 1, 2026
24.4%Verified-email coverage
14.7%Mobile-number coverage
6.4Average contacts per company
1-10Median size (employees)
6.7%Largest-city concentration · London
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
39,439
11-50
9,986
51-200
1,110
201-500
155
501-1,000
37
1,001-5,000
26
5,001-10,000
7
10001+
13

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 injectable 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
41 countries, largest first: the United States, the United Kingdom, Brazil, the Netherlands, Canada, Germany, Australia, Spain, Mexico, France and 31 more. Country and city lists for injectable marketing agencies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “injectable 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 injectable 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 injectable 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, 79,092 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 October 1, 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.

Injectable marketing agencies by location

222 lists · largest first

Every Injectable marketing agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 injectable 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 injectable marketing agencies are there worldwide?

RevenueBase identified 50,866 injectable marketing agencies worldwide as of October 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?

Essencemediacom, headquartered in London, tops this list with the largest team on record.

Which country has the most injectable marketing agencies?

The United States leads with 12,260 companies, followed by the United Kingdom (10,173) and Brazil (9,707). Every injectable marketing agencies list by country and city is linked on this page.

Which city has the most injectable marketing agencies?

London leads with 3416 headquartered companies, followed by Sao Paulo (2154) and New York (854).

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 79,092 verified decision-maker contacts tracked across these 50,866 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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.