Company lists · Data refreshed September 2026

Top 25 Medical writing agencies worldwide

Name: Medical writing agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,934 companies tracked

RevenueBase identified 1,934 medical writing agencies worldwide as of September 2026 and tracks 16,767 professional contacts across them, including 6,445 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers medical writing 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 17, 2026. Country and city lists for medical writing 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 Sep 17, 2026 86% judged on-target in blind review

1,934Companies

16,767Contacts tracked

6,445Verified emails

0Mobile numbers

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The 25 largest medical writing agencies worldwide

Ranked by team size

Top 25 of 1,934 medical writing agencies worldwide, 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Apcer Life Sciences	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	501-1,000	1,079 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
2	Ashfield Medcomms, An Inizio Company	Partial evidence	Macclesfield, United KingdomHQ checked Sep 17, 2026	501-1,000	709 contacts →
	Partial evidence “We reinvent medical communications to solve your toughest challenges.” Source: RevenueBase Database · checked Sep 17, 2026
3	Oxford Pharmagenesis	Indirect evidence	Oxford, United KingdomHQ checked Sep 17, 2026	501-1,000	475 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
4	SIRO	Strong evidence	Mumbai, IndiaHQ checked Sep 17, 2026	201-500	430 contacts →
	Strong evidence “SIRO unites two distinct but complementary business units: SIRO Medical Writing: SIRO's global medical writing specialists excel in drug development across various therapeutic…” Source: RevenueBase Database · checked Sep 17, 2026
5	The HWP Group Health & Wellness Partners, LLC	Partial evidence	Upper Saddle River, NJ, United StatesHQ checked Sep 17, 2026	201-500	323 contacts →
	Partial evidence “Founded in 2005, The HWP Group (Health & Wellness Partners, LLC) is a leading provider of medical communications solutions to global life sciences companies.” Source: RevenueBase Database · checked Sep 17, 2026
6	Medforce, An Iqvia Business	Partial evidence	Shrewsbury, NJ, United StatesHQ checked Sep 17, 2026	201-500	283 contacts →
	Partial evidence “MedForce, an IQVIA business, is a full service Medical Communications company, established in 2001.” Source: RevenueBase Database · checked Sep 17, 2026
7	Apothecom, An Inizio Company	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	282 contacts →
	Indirect evidence “Driven by evidence and powered by innovation, we accelerate outcomes.” Source: RevenueBase Database · checked Sep 17, 2026
8	Boldscience	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 17, 2026	201-500	233 contacts →
	Partial evidence “BOLDSCIENCE is a scientifically creative global medical communications agency, part of Assembled Intelligence What exactly does "scientifically creative" mean?” Source: RevenueBase Database · checked Sep 17, 2026
9	Canopy Life Sciences	Partial evidence	Danbury, CT, United StatesHQ checked Sep 17, 2026	201-500	222 contacts →
	Partial evidence “Canopy provides Clinical to Commercial services to 300+ Biotechnology, Pharmaceutical and Medical Device Companies.” Source: RevenueBase Database · checked Sep 17, 2026
10	Real Chemistry Medical Communications	Partial evidence	Carmel, IN, United StatesHQ checked Sep 17, 2026	201-500	221 contacts →
	Partial evidence “Real Chemistry Medical Communications develops breakthrough medical education for breakthrough medicines by partnering with pharmaceutical, biotechnology, and diagnostic clients…” Source: RevenueBase Database · checked Sep 17, 2026
11	P-Value Group	Partial evidence	Cedar Knolls, NJ, United StatesHQ checked Sep 17, 2026	201-500	215 contacts →
	Partial evidence “Founded in 2004, p-value group has multiple agencies that provide full-service medical communications and top-rated speakers bureau services.” Source: RevenueBase Database · checked Sep 17, 2026
12	Cactus Life Sciences	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 17, 2026	1,001-5,000	210 contacts →
	Indirect evidence “We Are An Agile, Client-first Agency Cactus Life Sciences (CLS) partners with the global biopharma industry to drive innovation and elevate patient outcomes through agile…” Source: RevenueBase Database · checked Sep 17, 2026
13	Helios Global Group	Indirect evidence	Alderley Edge, United KingdomHQ checked Sep 17, 2026	201-500	200 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
14	Excerpta Medica BV	Partial evidence	Amstelveen, NetherlandsHQ checked Sep 17, 2026	51-200	188 contacts →
	Partial evidence “Excerpta Medica is a full-service, global medical communications agency with decades of experience partnering with the healthcare industry.” Source: RevenueBase Database · checked Sep 17, 2026
15	Bioscript Group	Indirect evidence	Macclesfield, United KingdomHQ checked Sep 17, 2026	51-200	149 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
16	CMC Connect An IPG Health Company	Partial evidence	Macclesfield, United KingdomHQ checked Sep 17, 2026	51-200	139 contacts →
	Partial evidence “CMC Connect is now Omnicom Health Medical Communications.” Source: RevenueBase Database · checked Sep 17, 2026
17	Trilogy Writing & Consulting, An Indegene Company	Strong evidence	Frankfurt, GermanyHQ checked Sep 17, 2026	51-200	127 contacts →
	Strong evidence “At Trilogy, medical writing is our passion.” Source: RevenueBase Database · checked Sep 17, 2026
18	AXON	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	123 contacts →
	Indirect evidence “Big agencies deliver scale and diverse expertise.” Source: RevenueBase Database · checked Sep 17, 2026
19	Editor Group	Partial evidence	Sydney, AustraliaHQ checked Sep 17, 2026	11-50	118 contacts →
	Partial evidence “Editor Group provides expert writing, editing and proofreading services for business and government clients.” Source: RevenueBase Database · checked Sep 17, 2026
20	Masuu Global Solutions	Indirect evidence	Miami, FL, United StatesHQ checked Sep 17, 2026	201-500	106 contacts →
	Indirect evidence “Masuu with over 280 Subject Matter Experts (SMEs) and a leadership/scientific advisory team featuring former personnel from health authorities like the USFDA, EMA, MHRA, ANVISA…” Source: RevenueBase Database · checked Sep 17, 2026
21	Synchrony Group, LLC	Partial evidence	West Chester, PA, United StatesHQ checked Sep 17, 2026	51-200	103 contacts →
	Partial evidence “Synchrony Group is an independently owned group of companies built on a foundation of scientific excellence and specializing in medical communications and marketing communications.” Source: RevenueBase Database · checked Sep 17, 2026
22	Aspire Scientific LTD	Indirect evidence	Manchester, United KingdomHQ checked Sep 17, 2026	51-200	101 contacts →
	Indirect evidence “We believe that standout communication takes outstanding people.” Source: RevenueBase Database · checked Sep 17, 2026
23	Porterhouse Medical	Partial evidence	Reading, United KingdomHQ checked Sep 17, 2026	51-200	94 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
24	Content ED NET	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	90 contacts →
	Partial evidence “Content Ed Net provides communication services to medical affairs and marketing teams in pharmaceutical companies around the world.” Source: RevenueBase Database · checked Sep 17, 2026
25	Meisys	Partial evidence	Alcobendas, SpainHQ checked Sep 17, 2026	51-200	90 contacts →
	Partial evidence “Meisys is a Medical Information, Drug Safety, Regulatory and Medical Affairs outsourcing company providing medical, scientific and technical services to the pharmaceutical…” Source: RevenueBase Database · checked Sep 17, 2026

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: medical writing 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 medical writing agencies.
Partial evidence: Its own public description names part of medical writing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name medical writing 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 1,934 medical writing agencies worldwide

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Medical writing agencies worldwide at a glance

As of Sep 17, 2026

38.4%Verified-email coverage

8.7Average contacts per company

1-10Median size (employees)

5.2%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

1,471

11-50

311

51-200

201-500

501-1,000

1,001-5,000

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.
Coverage: 11 countries, largest first: the United States, the United Kingdom, India, the Netherlands, Canada, Australia, France, Germany, Spain, Italy and 1 more. Country and city lists for medical writing agencies are linked below.
What qualifies: Companies worldwide 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.
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, 6,445 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 location

11 lists · largest first

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

Countries

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 worldwide?

RevenueBase identified 1,934 medical writing 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?

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

Which country has the most medical writing agencies?

The United States leads with 744 companies, followed by the United Kingdom (357) and India (178). Every medical writing agencies list by country and city is linked on this page.

Which city has the most medical writing agencies?

London leads with 101 headquartered companies, followed by New York (41) and Toronto (36).

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 6,445 verified decision-maker contacts tracked across these 1,934 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.