Company lists · Data refreshed October 2026

Top 25 Clinical communications agencies based in the United Kingdom

RevenueBase identified 1,199 company matches for clinical communications agencies associated with the United Kingdom as of October 2026 and tracks 31,773 professional contacts across them, including 10,735 with verified work emails. London is the largest hub.

This list covers company matches for clinical communications agencies associated with the United Kingdom, 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.

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
1,199Companies
31,773Contacts tracked
10,735Verified emails
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The 25 largest clinical communications agencies based in the United Kingdom

Ranked by team size
Top 25 of 1,199 company matches for clinical communications agencies based in the United Kingdom, 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 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
2Exact 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
3Exact 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
4Exact 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
5Exact matchMacclesfield, United KingdomHQ recorded Oct 9, 2026501-1,000701 contacts →

Exact match

“We reinvent medical communications to solve your toughest challenges.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6Exact matchUnited KingdomHQ recorded Oct 9, 2026501-1,000528 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7Exact matchOxford, United KingdomHQ recorded Oct 9, 2026501-1,000505 contacts →

Exact match

“Today's most complex therapies in oncology, rare disease and specialty biologics have evidence journeys that are long and stakeholders that are sophisticated.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8Exact matchManchester, United KingdomHQ recorded Oct 9, 20261,001-5,000464 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9Exact matchAldgate, United KingdomHQ recorded Oct 9, 2026201-500442 contacts →

Exact match

“Emperor is one of the UK's leading employee-owned creative communications agencies.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10Exact matchNottingham, United KingdomHQ recorded Oct 9, 20261,001-5,000424 contacts →

Exact match

“Calyx and Invicro are now Perceptive!”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Oct 9, 2026501-1,000359 contacts →

Exact match

“At WEP Clinical, we operate as a specialist CRO with a proven track record of excellence in designing, managing, and executing Clinical Trials, Expanded Access Programs (EAPs)…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12Exact matchHartlebury, United KingdomHQ recorded Oct 9, 2026201-500322 contacts →

Exact match

“For over 45 years, DRPG has been delivering everything from video, events and digital right through to research, strategy and creative communications.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13Exact matchBollington, United KingdomHQ recorded Oct 9, 2026201-500302 contacts →

Exact match

“Amiculum is an independent healthcare consulting and communications agency with >300 talented team members in key locations worldwide.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Oct 9, 2026201-500294 contacts →

Exact match

“Driven by evidence and powered by innovation, we accelerate outcomes.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Oct 9, 2026201-500288 contacts →

Exact match

“Four is one of the leading independent integrated communications agencies in the UK and the Middle East.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Oct 9, 2026201-500238 contacts →

Exact match

“Welcome to Langland.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Oct 9, 202651-200235 contacts →

Exact match

“At Richmond, we're on a mission to transform healthcare by delivering faster answers and turning hope into tangible solutions.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Oct 9, 202651-200229 contacts →

Exact match

“We’re an award-winning, founder-led, communications agency based in London, Minneapolis, New York and San Francisco with an extensive global capability.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19Exact matchColchester, United KingdomHQ recorded Oct 9, 2026201-500228 contacts →

Exact match

“Since 1989, GFM clearcomms has been creating connections for our clients that deliver tangible results for their businesses.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Oct 9, 2026201-500222 contacts →

Exact match

“MHP Group is the integrated communications agency built for the Networked Age – a world that’s increasingly connected, complex, polarised and activist.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21Exact matchAlderley Edge, United KingdomHQ recorded Oct 9, 2026201-500202 contacts →

Exact match

“Helios Global Group is a family of award-winning agencies (Helios, Selene, Apollo and Cogentia), providing full-service healthcare communications expertise to some of the world’s…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22Exact matchPreston, United KingdomHQ recorded Oct 9, 2026n/a194 contacts →

Exact match

“A&P is a multi-disciplined, award winning marketing communications agency who work with some of the UK's best known brands in both the private and public sectors.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23Exact matchHitchin, United KingdomHQ recorded Oct 9, 2026201-500183 contacts →

Exact match

“Quanticate is a leading global data focused clinical research organisation (CRO) primarily focused on the management, analysis and reporting of data from clinical trials and…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Oct 9, 202651-200182 contacts →

Exact match

“Helping organisations build and protect value in complex and contested environments.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25Exact matchMacclesfield, United KingdomHQ recorded Oct 9, 202651-200167 contacts →

Exact match

“Established in 2005, Bioscript Group is formed from multiple, specialist businesses to support our global pharmaceutical clients; we draw on their multidisciplinary expertise to…”

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

Showing 25 of 1,199 clinical communications agencies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 10,735 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Clinical communications agencies based in the United Kingdom at a glance

As of Oct 9, 2026
33.8%Verified-email coverage
26.5Average contacts per company
1-10Median size (employees)
39.0%Largest-city concentration · London
Oct 9, 2026Page data refreshed

Companies by employee count

1-10
664
11-50
391
51-200
92
201-500
27
501-1,000
10
1,001-5,000
8
5,001-10,000
1
10001+
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 1,199 companies.

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.
What qualifies
Company records associated with the United Kingdom 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 10,735 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.

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 based in the United Kingdom?

RevenueBase identified 1,199 company matches for clinical communications agencies associated with the United Kingdom 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?

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

Which city has the most clinical communications agencies?

London leads with 468 company records, followed by Manchester (39) and Bristol (19).

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 10,735 professional contacts with verified work emails tracked across these 1,199 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.