Company lists · Data refreshed September 2026

Top 25 Medical writing agencies based in the United Kingdom

RevenueBase identified 357 medical writing agencies headquartered in the United Kingdom as of September 2026 and tracks 6,063 professional contacts across them, including 3,102 with verified work emails. London is the largest hub.

This list covers medical writing agencies headquartered in the United Kingdom, 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 17, 2026.

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 Sep 17, 2026 86% judged on-target in blind review
357Companies
6,063Contacts tracked
3,102Verified emails
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The 25 largest medical writing agencies based in the United Kingdom

Ranked by team size
Top 25 of 357 medical writing agencies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to medical writing 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
1Strong evidenceLondon, United KingdomHQ checked Sep 17, 2026501-1,0001,079 contacts →

Strong evidence

“APCER Life Sciences, established in 2007, is a trusted global leader in pharmacovigilance, medical information, medical writing, and regulatory affairs.”

Source: RevenueBase Database · checked Sep 17, 2026
2Partial evidenceMacclesfield, United KingdomHQ checked Sep 17, 2026501-1,000709 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
3Indirect evidenceOxford, United KingdomHQ checked Sep 17, 2026501-1,000475 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 17, 2026201-500282 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
5Indirect evidenceAlderley Edge, United KingdomHQ checked Sep 17, 2026201-500200 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 17, 2026
6Indirect evidenceMacclesfield, United KingdomHQ checked Sep 17, 202651-200149 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
7Partial evidenceMacclesfield, United KingdomHQ checked Sep 17, 202651-200139 contacts →

Partial evidence

“CMC Connect is now Omnicom Health Medical Communications.”

Source: RevenueBase Database · checked Sep 17, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 17, 2026201-500123 contacts →

Indirect evidence

“Big agencies deliver scale and diverse expertise.”

Source: RevenueBase Database · checked Sep 17, 2026
9Indirect evidenceManchester, United KingdomHQ checked Sep 17, 202651-200101 contacts →

Indirect evidence

“We believe that standout communication takes outstanding people.”

Source: RevenueBase Database · checked Sep 17, 2026
10Partial evidenceReading, United KingdomHQ checked Sep 17, 202651-20094 contacts →

Partial evidence

“Porterhouse Medical provides powerful, insight-driven, scientific and medical communication services to the pharmaceutical industry across the globe, with a focus on solutions…”

Source: RevenueBase Database · checked Sep 17, 2026
11Partial evidenceLondon, United KingdomHQ checked Sep 17, 2026201-50083 contacts →

Partial evidence

“Specialists in the future of medical communications.”

Source: RevenueBase Database · checked Sep 17, 2026
12Partial evidenceLondon, United KingdomHQ checked Sep 17, 202651-20067 contacts →

Partial evidence

“We are Obsidian – a specialist healthcare agency dedicated to medical & scientific communications.”

Source: RevenueBase Database · checked Sep 17, 2026
13Partial evidenceHaywards Heath, United KingdomHQ checked Sep 17, 202611-5059 contacts →

Partial evidence

“LCW Consulting | Bringing excellence and innovation to medical communications LCW Consulting is an independently owned UK medical communications agency, not to be confused with…”

Source: RevenueBase Database · checked Sep 17, 2026
14Indirect evidenceLondon, United KingdomHQ checked Sep 17, 202611-5058 contacts →

Indirect evidence

“Synergy Vision prides ourselves on delivering the difference in any situation.”

Source: RevenueBase Database · checked Sep 17, 2026
15Partial evidenceLondon, United KingdomHQ checked Sep 17, 202611-5056 contacts →

Partial evidence

“Bad writing costs businesses over £300 billion a year.”

Source: RevenueBase Database · checked Sep 17, 2026
16Partial evidencePlumley, United KingdomHQ checked Sep 17, 202651-20053 contacts →

Partial evidence

“Meridian HealthComms is a specialist communications agency providing medical communications services to meet your needs.”

Source: RevenueBase Database · checked Sep 17, 2026
17Partial evidenceMilton Keynes, United KingdomHQ checked Sep 17, 202651-20047 contacts →

Partial evidence

“Indigo Medical is a global medical communications and compliance agency delivering high-quality, scientifically rigorous and compliant engagement for the pharmaceutical and…”

Source: RevenueBase Database · checked Sep 17, 2026
18Partial evidenceLondon, United KingdomHQ checked Sep 17, 202651-20045 contacts →

Partial evidence

“Since its inception, Remedica has proven itself to be an exemplary medical communications agency, working closely with medical affairs teams to deliver a range of services…”

Source: RevenueBase Database · checked Sep 17, 2026
19Indirect evidenceRichmond, United KingdomHQ checked Sep 17, 202611-5039 contacts →

Indirect evidence

“Niche Science & Technology Ltd has provided a comprehensive clinical research service to a growing number of pharmaceutical clients since its inception in 1998.”

Source: RevenueBase Database · checked Sep 17, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 17, 202611-5032 contacts →

Indirect evidence

“PharmaReview, an IQVIA business, provides copy review services to the life science industry, with the aim of rapid throughput to approval and certification.”

Source: RevenueBase Database · checked Sep 17, 2026
21Partial evidenceChesham, United KingdomHQ checked Sep 17, 20261-1026 contacts →

Partial evidence

“Iceberg Medical is a boutique medical communications agency that specialises in mid-sized Rare Disease companies.”

Source: RevenueBase Database · checked Sep 17, 2026
22Strong evidenceDoune, United KingdomHQ checked Sep 17, 202611-5023 contacts →

Strong evidence

“Alchemy Medical Writing are an established group of medical writers, delivering regulatory writing and medical communications projects to a wide range of pharmaceutical and…”

Source: RevenueBase Database · checked Sep 17, 2026
23Indirect evidenceLondon, United KingdomHQ checked Sep 17, 202611-5023 contacts →

Indirect evidence

“Award-winning healthcare communications, powered by Science, humanised.”

Source: RevenueBase Database · checked Sep 17, 2026
24Indirect evidenceMaidenhead, United KingdomHQ checked Sep 17, 202611-5022 contacts →

Indirect evidence

“We're on a mission to transform healthcare communications worldwide.”

Source: RevenueBase Database · checked Sep 17, 2026
25Partial evidenceAmersham, United KingdomHQ checked Sep 17, 202611-5021 contacts →

Partial evidence

“With over 28 years of experience and a refreshed identity, AMC (formerly Ashley Medical Communications) delivers strategic medical communications that bring science to life.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 25 of 357 medical writing agencies based in the United Kingdom

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Medical writing agencies based in the United Kingdom at a glance

As of Sep 17, 2026
51.2%Verified-email coverage
17.0Average contacts per company
1-10Median size (employees)
28.0%Largest-city concentration · London
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
270
11-50
57
51-200
15
201-500
6
501-1,000
6
1,001-5,000
2

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 357 companies.

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 medical writing 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.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “medical writing 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 medical writing 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 medical writing agencies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
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, 3,102 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 17, 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.

Medical writing agencies by metro

  • Medical writing agencies in London100

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 medical writing 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 medical writing agencies are there based in the United Kingdom?

RevenueBase identified 357 medical writing agencies headquartered in the United Kingdom 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?

Apcer Life Sciences, headquartered in London, tops this list with the largest team on record.

Which city has the most medical writing agencies?

London leads with 100 headquartered companies, followed by Manchester (17) and Macclesfield (6).

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 3,102 verified decision-maker contacts tracked across these 357 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 17, 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.