Company lists · Data refreshed October 2026

Top 25 Clinical communications agencies worldwide

RevenueBase identified 16,072 company matches for clinical communications agencies worldwide as of October 2026 and tracks 276,036 professional contacts across them, including 88,080 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for clinical communications agencies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 9, 2026. Country and city lists for clinical communications agencies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 9, 2026 How this list was built
16,072Companies
276,036Contacts tracked
88,080Verified emails
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The 25 largest clinical communications agencies worldwide

Ranked by team size
Top 25 of 16,072 company matches for clinical communications agencies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWilmington, NC, United StatesHQ recorded Oct 9, 202610001+19,757 contacts →

Exact match

“PPD is part of Thermo Fisher Scientific, the world leader in serving science.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2Exact matchResearch Triangle Park, NC, United StatesHQ recorded Oct 9, 202610001+10,915 contacts →

Exact match

“Fortrea (Nasdaq: FTRE) is a leading global clinical research organization (CRO) dedicated to providing innovative clinical development solutions to the life sciences industry.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Oct 9, 20261,001-5,0002,678 contacts →

Exact match

“Medidata is powering smarter treatments and healthier people through digital solutions to support clinical trials.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4Exact matchZug, SwitzerlandHQ recorded Oct 9, 20261,001-5,0002,622 contacts →

Exact match

“PSI is a leading full-service global Contract Research Organization whose key strength is predictable patient enrollment across multiple therapeutic areas.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Oct 9, 202610001+2,403 contacts →

Exact match

“McCann Worldgroup, part of the Interpublic Group (NYSE: IPG), is the irrefutable leader in the business of creativity.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6Exact matchRaleigh, NC, United StatesHQ recorded Oct 9, 20261,001-5,0002,144 contacts →

Exact match

“At ProPharma, we help pharmaceutical, biotechnology, and medical device companies bring life-changing therapies to market.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7Exact matchBlue Bell, PA, United StatesHQ recorded Oct 9, 20261,001-5,0002,127 contacts →

Exact match

“For 25+ years, Signant Health has been pioneering solutions and methodologies that propel clinical research programs toward regulatory success.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Oct 9, 2026n/a2,014 contacts →

Exact match

“For 25 years, Oi has been at the forefront of healthcare marketing, innovation is in our DNA.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9Exact matchBethesda, MD, United StatesHQ recorded Oct 9, 20261,001-5,0001,917 contacts →

Exact match

“Precision for Medicine is an industry-leading global clinical research services organization, purpose-built to improve the clinical research and development process for new…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10Exact matchSingapore, AustraliaHQ recorded Oct 9, 20261,001-5,0001,906 contacts →

Exact match

“Novotech is a globally recognized full-service clinical research organization (CRO) and scientific advisory company that provides biotech and small- to mid-sized pharma companies…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11Exact matchAshby-de-la-zouch, United KingdomHQ recorded Oct 9, 20265,001-10,0001,493 contacts →

Exact match

“We are now part of Inizio, a strategic partner for companies in health and life sciences.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12Exact matchRio De Janeiro, BrazilHQ recorded Oct 9, 2026501-1,0001,353 contacts →

Exact match

“FSB Comunicações is an Integrated Communications agency focused on results.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13Exact matchConshohocken, PA, United StatesHQ recorded Oct 9, 20261,001-5,0001,303 contacts →

Exact match

“Suvoda is a global clinical trial technology company, now strengthened by our merger with Greenphire.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14Exact matchAhmedabad, IndiaHQ recorded Oct 9, 20261,001-5,0001,272 contacts →

Exact match

“Lambda Therapeutic Research is a leading full-service Global Clinical Research Organization (CRO) headquartered in Ahmedabad (India), with facilities and operations in Mehsana…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Oct 9, 20261,001-5,0001,238 contacts →

Exact match

“Expanding on their combined 50-year history, Perceptive provides best-in-class specialist support to global pharmaceutical, biotech, and clinical research organizations, spanning…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16Exact matchCovington, KY, United StatesHQ recorded Oct 9, 20261,001-5,0001,102 contacts →

Exact match

“CTI Clinical Trial and Consulting Services is a global, privately held, research service organization, delivering a complete spectrum of clinical trial and consulting services…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17Exact matchGaithersburg, MD, United StatesHQ recorded Oct 9, 20261,001-5,0001,001 contacts →

Exact match

“Navitas Life Sciences is a global Clinical Research partner with over 35 years of expertise in Clinical, Regulatory, Safety, and Data Management solutions.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18Exact matchDurham, NC, United StatesHQ recorded Oct 9, 20261,001-5,000991 contacts →

Exact match

“Velocity is the world’s leading organization of fully integrated clinical research sites.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19Exact matchWilmslow, United KingdomHQ recorded Oct 9, 20261,001-5,000967 contacts →

Exact match

“Founded in 2001, Envision Pharma Group is a leading global technology-enabled strategic solutions partner for the life sciences industry, working with over 200 pharma and biotech…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United StatesHQ recorded Oct 9, 2026n/a928 contacts →

Exact match

“We are a full-service communications agency behind some of the world’s most revered and iconic brands.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21Exact matchNew York, NY, United StatesHQ recorded Oct 9, 20261,001-5,000921 contacts →

Exact match

“Ruder Finn is one of the world’s largest global independent integrated marketing and communications agencies, leading at the intersection of technology, human creativity, and…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Oct 9, 2026501-1,000900 contacts →

Exact match

“Zeno Group is the fiercely independent and global, integrated communications agency, born from PR.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23Exact matchSalt Lake City, UT, United StatesHQ recorded Oct 9, 20261,001-5,000884 contacts →

Exact match

“CenExel is a leading integrated, wholly owned, nationwide clinical research site network comprised of 18 Centers of Excellence in major metropolitan areas across the U.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24Exact matchPhiladelphia, PA, United StatesHQ recorded Oct 9, 2026501-1,000877 contacts →

Exact match

“Digitas Health is connected, for good.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25Exact matchNew York, NY, United StatesHQ recorded Oct 9, 20261,001-5,000857 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

Showing 25 of 16,072 clinical communications agencies worldwide

See the full list, filter by size, metro and specialty, and access 88,080 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Clinical communications agencies worldwide at a glance

As of Oct 9, 2026
31.9%Verified-email coverage
17.2Average contacts per company
1-10Median size (employees)
3.0%Largest-city concentration · London
Oct 9, 2026Page data refreshed

Companies by employee count

1-10
9,935
11-50
4,719
51-200
1,000
201-500
215
501-1,000
75
1,001-5,000
73
5,001-10,000
10
10001+
19

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for clinical communications agencies are linked below.
What qualifies
Company records worldwide whose business descriptions match “clinical communications agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 88,080 professional contacts with verified work emails across the full matched dataset. 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 9, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Clinical communications agencies by location

114 lists · largest first

Every Clinical communications 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “clinical communications agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clinical communications agencies are there worldwide?

RevenueBase identified 16,072 company matches for clinical communications agencies worldwide as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

PPD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most clinical communications agencies?

The United States leads with 2,786 companies, followed by the United Kingdom (1,199) and Brazil (1,132). Every clinical communications agencies list by country and city is linked on this page.

Which city has the most clinical communications agencies?

London leads with 475 company records, followed by Sao Paulo (363) and New York (291).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 88,080 professional contacts with verified work emails tracked across these 16,072 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 9, 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 SmartSearch, 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.