Company lists · Data refreshed October 2026
Top 25 Early phase clinical research organizations based in the United Kingdom
RevenueBase identified 381 company matches for early phase clinical research organizations associated with the United Kingdom as of October 2026 and tracks 18,841 professional contacts across them, including 9,344 with verified work emails. London is the largest hub.
This list covers company matches for early phase clinical research organizations 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 11, 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.
The 25 largest early phase clinical research organizations based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,686 contacts → | ||||
Exact match “Partnering to Advance Human Health A unique culture delivering exceptional solutions: Almac is a financially secure, privately owned organisation with 7,800+ employees globally.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 2 | 1,238 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 11, 2026 · View company records in RevenueBase | |||||
| 3 | 598 contacts → | ||||
Exact match “At Sygnature Discovery, a global drug discovery CRO, we create exceptional scientific outcomes.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 4 | 517 contacts → | ||||
Exact match “Founded in 2005, o2h discovery is a Contract Research Organisation which has an integrated drug discovery platform operating from our state-of-the-art research centre in India and…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 5 | 514 contacts → | ||||
Exact match “Veramed is a Clinical Research Organization (CRO) that provides expert data management, biostatistics and programming services to the pharmaceutical and biotech industry.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 6 | 424 contacts → | ||||
Exact match “Calyx and Invicro are now Perceptive!” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 7 | 386 contacts → | ||||
Exact match “Phastar is an award-winning specialist biometrics and data science CRO, trusted by pharma, biotech, and medical device companies worldwide.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 8 | 359 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 11, 2026 · View company records in RevenueBase | |||||
| 9 | 317 contacts → | ||||
Exact match “MAC Clinical Research is a leading full-service, global Contract Research Organisation (CRO) with over 30 years of experience in clinical trial management.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 10 | 308 contacts → | ||||
Exact match “Our passion for improving patients’ lives motivates us to apply our skills, experience, and knowledge to advance medicine.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 11 | 303 contacts → | ||||
Exact match “FutureMeds is an independent, fully-owned European Site Network and DCT service provider dedicated to running patient-centric clinical trials and delivering quality data for the…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 12 | 235 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 11, 2026 · View company records in RevenueBase | |||||
| 13 | 229 contacts → | ||||
Exact match “hVIVO plc (Ticker: HVO) is a science‑led early‑phase drug development company purpose‑built to meet the growing complexity of modern clinical research.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 14 | 223 contacts → | ||||
Exact match “HMR is a Contract Research Organisation (CRO).” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 15 | 195 contacts → | ||||
Exact match “Illingworth Research Group™, a Syneos Health® company, is a leading provider of clinical research home health services, providing highly trained, qualified and experienced…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 16 | 189 contacts → | ||||
Exact match “Concept Life Sciences is a knowledge-based, science-led and customer-focused contract research and manufacturing organisation with world-leading expertise in the pharmaceutical…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 17 | 183 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 11, 2026 · View company records in RevenueBase | |||||
| 18 | 181 contacts → | ||||
Exact match “Synexa Life Sciences is a biomarker and bioanalytical lab CRO, specialising in the development, validation, and delivery of a wide range of complex and custom-designed assays.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 19 | 152 contacts → | ||||
Exact match “We are Vigilare BioPharma, a global Regulatory partner for Pharmaceuticals, Generics, Consumer Healthcare Products and Medical Devices.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 20 | 147 contacts → | ||||
Exact match “Panthera is an independent SMO working with pharmaceutical and contract research organizations to find the right patient, for the right trial, at the right time through the…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 21 | 137 contacts → | ||||
Exact match “Clintec, an IQVIA company, is an innovative, medium-sized, global Contract Research Organization providing global full and functional service support to the pharmaceutical…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 22 | 132 contacts → | ||||
Exact match “We’re on a mission to make life better for patients taking part in clinical trials around the world-and for the caregivers who support them.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 23 | 121 contacts → | ||||
Exact match “Arcinova, A Quotient Sciences Company, is dedicated to providing innovative contract research, development, and manufacturing services.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 24 | 121 contacts → | ||||
Exact match “Huntingdon Life Sciences was founded in 1952.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 25 | 119 contacts → | ||||
Exact match “Transpharmation is a contract research organisation led by scientists.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “early phase clinical research organizations”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 381 early phase clinical research organizations based in the United Kingdom
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Early phase clinical research organizations based in the United Kingdom at a glance
As of Oct 11, 2026Companies by employee count
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 381 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 “early phase clinical research organizations” 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 9,344 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 11, 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.
Early phase clinical research organizations by metro
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 “early phase clinical research organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many early phase clinical research organizations are there based in the United Kingdom?
RevenueBase identified 381 company matches for early phase clinical research organizations 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?
Almac Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most early phase clinical research organizations?
London leads with 99 company records, followed by Cambridge (15) and Manchester (14).
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 9,344 professional contacts with verified work emails tracked across these 381 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 11, 2026.
Ready to reach these companies? Verified emails and direct dials for all 381 early phase clinical research organizations based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Early phase clinical research organizations by geography
- Early phase clinical research organizations based in Melbourne, Australia
- Early phase clinical research organizations based in Sao Paulo, Brazil
- Early phase clinical research organizations based in Montreal, Canada
- Early phase clinical research organizations based in Toronto, Canada
- Early phase clinical research organizations based in Paris, France
- Early phase clinical research organizations based in Berlin, Germany
- Early phase clinical research organizations based in Ahmedabad, India
- Early phase clinical research organizations based in Bangalore, India
- Early phase clinical research organizations based in Hyderabad, India
- Early phase clinical research organizations based in Navi Mumbai, India
- Early phase clinical research organizations based in Pune, India
- Early phase clinical research organizations based in Warsaw, Poland
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Early phase clinical research organizations based in Melbourne, Australia
- Early phase clinical research organizations based in Sao Paulo, Brazil
- Early phase clinical research organizations based in Montreal, Canada
- Early phase clinical research organizations based in Toronto, Canada
- Early phase clinical research organizations based in Paris, France
- Early phase clinical research organizations based in Berlin, Germany
Company intelligence · public preview
Top 25 early phase clinical research organizations based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 381 matching company records for early phase clinical research organizations based in the United Kingdom, with 18,841 tracked contacts and 9,344 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 11, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 early phase clinical research organizations based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Almac Groupalmacgroup.comHQ: Craigavon, United KingdomReported employees: 5,001-10,000 | Craigavon, United Kingdom | 5,001-10,000 | Exact match | 4,686 contacts → |
“Partnering to Advance Human Health A unique culture delivering exceptional solutions: Almac is a financially secure, privately owned organisation with 7,800+ employees globally.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Perceptive INCperceptive.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,238 contacts → |
“Expanding on their combined 50-year history, Perceptive provides best-in-class specialist support to global pharmaceutical, biotech, and clinical research organizations, spanning…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Sygnature Discoverysygnaturediscovery.comHQ: Nottingham, United KingdomReported employees: 501-1,000 | Nottingham, United Kingdom | 501-1,000 | Exact match | 598 contacts → |
“At Sygnature Discovery, a global drug discovery CRO, we create exceptional scientific outcomes.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  O2h Discoveryo2hdiscovery.coHQ: Cambridge, United KingdomReported employees: 501-1,000 | Cambridge, United Kingdom | 501-1,000 | Exact match | 517 contacts → |
“Founded in 2005, o2h discovery is a Contract Research Organisation which has an integrated drug discovery platform operating from our state-of-the-art research centre in India and…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Veramedveramed.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 514 contacts → |
“Veramed is a Clinical Research Organization (CRO) that provides expert data management, biostatistics and programming services to the pharmaceutical and biotech industry.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  CALYXcalyx.aiHQ: Nottingham, United KingdomReported employees: 1,001-5,000 | Nottingham, United Kingdom | 1,001-5,000 | Exact match | 424 contacts → |
“Calyx and Invicro are now Perceptive!” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Phastarphastar.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 386 contacts → |
“Phastar is an award-winning specialist biometrics and data science CRO, trusted by pharma, biotech, and medical device companies worldwide.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  WEP Clinicalwepclinical.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 359 contacts → |
“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 description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  MAC Clinical Researchmacplc.comHQ: Blackpool, United KingdomReported employees: 201-500 | Blackpool, United Kingdom | 201-500 | Exact match | 317 contacts → |
“MAC Clinical Research is a leading full-service, global Contract Research Organisation (CRO) with over 30 years of experience in clinical trial management.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Simbec-Orionsimbecorion.comHQ: Merthyr Tydfil, United KingdomReported employees: 201-500 | Merthyr Tydfil, United Kingdom | 201-500 | Exact match | 308 contacts → |
“Our passion for improving patients’ lives motivates us to apply our skills, experience, and knowledge to advance medicine.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Futuremedsfuturemeds.comHQ: Liverpool, United KingdomReported employees: 501-1,000 | Liverpool, United Kingdom | 501-1,000 | Exact match | 303 contacts → |
“FutureMeds is an independent, fully-owned European Site Network and DCT service provider dedicated to running patient-centric clinical trials and delivering quality data for the…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Richmond Pharmacologyrichmondpharmacology.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 235 contacts → |
“At Richmond, we're on a mission to transform healthcare by delivering faster answers and turning hope into tangible solutions.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  HVIVOhvivo.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 229 contacts → |
“hVIVO plc (Ticker: HVO) is a science‑led early‑phase drug development company purpose‑built to meet the growing complexity of modern clinical research.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Hammersmith Medicines Research LTDhmrlondon.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 223 contacts → |
“HMR is a Contract Research Organisation (CRO).” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Illingworth Research Group A Syneos Health Companyillingworthresearch.comHQ: Macclesfield, United KingdomReported employees: 51-200 | Macclesfield, United Kingdom | 51-200 | Exact match | 195 contacts → |
“Illingworth Research Group™, a Syneos Health® company, is a leading provider of clinical research home health services, providing highly trained, qualified and experienced…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Concept Life Sciencesconceptlifesciences.comHQ: High Peak, United KingdomReported employees: 201-500 | High Peak, United Kingdom | 201-500 | Exact match | 189 contacts → |
“Concept Life Sciences is a knowledge-based, science-led and customer-focused contract research and manufacturing organisation with world-leading expertise in the pharmaceutical…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Quanticatequanticate.comHQ: Hitchin, United KingdomReported employees: 201-500 | Hitchin, United Kingdom | 201-500 | Exact match | 183 contacts → |
“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 description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Synexa Life Sciencessynexagroup.comHQ: Manchester, United KingdomReported employees: 201-500 | Manchester, United Kingdom | 201-500 | Exact match | 181 contacts → |
“Synexa Life Sciences is a biomarker and bioanalytical lab CRO, specialising in the development, validation, and delivery of a wide range of complex and custom-designed assays.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Vigilarevigilarebp.comHQ: Ruislip, United KingdomReported employees: 51-200 | Ruislip, United Kingdom | 51-200 | Exact match | 152 contacts → |
“We are Vigilare BioPharma, a global Regulatory partner for Pharmaceuticals, Generics, Consumer Healthcare Products and Medical Devices.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Panthera Biopartnerspanthera-bio.comHQ: Preston, United KingdomReported employees: 11-50 | Preston, United Kingdom | 11-50 | Exact match | 147 contacts → |
“Panthera is an independent SMO working with pharmaceutical and contract research organizations to find the right patient, for the right trial, at the right time through the…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Clintecclintec.comHQ: Glasgow, United KingdomReported employees: 501-1,000 | Glasgow, United Kingdom | 501-1,000 | Exact match | 137 contacts → |
“Clintec, an IQVIA company, is an innovative, medium-sized, global Contract Research Organization providing global full and functional service support to the pharmaceutical…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Mdgroupmdgroup.comHQ: Bracknell, United KingdomReported employees: 51-200 | Bracknell, United Kingdom | 51-200 | Exact match | 132 contacts → |
“We’re on a mission to make life better for patients taking part in clinical trials around the world-and for the caregivers who support them.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Arcinovaarcinova.comHQ: Alnwick, United KingdomReported employees: 51-200 | Alnwick, United Kingdom | 51-200 | Exact match | 121 contacts → |
“Arcinova, A Quotient Sciences Company, is dedicated to providing innovative contract research, development, and manufacturing services.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Huntingdon Life Sciencesenvigo.comHQ: Huntingdon, United KingdomReported employees: 1,001-5,000 | Huntingdon, United Kingdom | 1,001-5,000 | Exact match | 121 contacts → |
“Huntingdon Life Sciences was founded in 1952.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Transpharmation LTDtranspharmation.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 119 contacts → |
“Transpharmation is a contract research organisation led by scientists.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 381 company matches
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Early phase clinical research organizations: dataset insights
October 11, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
381 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 381 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 11, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Early phase clinical research organizations by metro
Questions about this company list
What does Exact match mean for early phase clinical research organizations?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many early phase clinical research organizations did RevenueBase find based in the United Kingdom?
The saved snapshot records 381 matching company records, 18,841 tracked contacts and 9,344 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 11, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Early phase clinical research organizations by geography
- Early phase clinical research organizations based in Melbourne, Australia
- Early phase clinical research organizations based in Sao Paulo, Brazil
- Early phase clinical research organizations based in Montreal, Canada
- Early phase clinical research organizations based in Toronto, Canada
- Early phase clinical research organizations based in Paris, France
- Early phase clinical research organizations based in Berlin, Germany
- Early phase clinical research organizations based in Ahmedabad, India
- Early phase clinical research organizations based in Bangalore, India
- Early phase clinical research organizations based in Hyderabad, India
- Early phase clinical research organizations based in Navi Mumbai, India
- Early phase clinical research organizations based in Pune, India
- Early phase clinical research organizations based in Warsaw, Poland
Cite this list
RevenueBase Data Team. Top 25 early phase clinical research organizations based in the United Kingdom. Snapshot: October 11, 2026. https://revenuebase.ai/companies/early-phase-clinical-research-organizations/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Early phase clinical research organizations based in Melbourne, Australia
- Early phase clinical research organizations based in Sao Paulo, Brazil
- Early phase clinical research organizations based in Montreal, Canada
- Early phase clinical research organizations based in Toronto, Canada
- Early phase clinical research organizations based in Paris, France
- Early phase clinical research organizations based in Berlin, Germany
Company intelligence · public preview
Top 25 early phase clinical research organizations based in the United Kingdom
RevenueBase records 381 matching company records for early phase clinical research organizations based in the United Kingdom, with 18,841 tracked contacts and 9,344 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 11, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 early phase clinical research organizations based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Almac Groupalmacgroup.com HQ: Craigavon, United KingdomReported employees: 5,001-10,000 | Craigavon, United Kingdom | 5,001-10,000 | Exact match | 4,686 contacts → |
“Partnering to Advance Human Health A unique culture delivering exceptional solutions: Almac is a financially secure, privately owned organisation with 7,800+ employees globally.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Perceptive INCperceptive.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,238 contacts → |
“Expanding on their combined 50-year history, Perceptive provides best-in-class specialist support to global pharmaceutical, biotech, and clinical research organizations, spanning…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Sygnature Discoverysygnaturediscovery.com HQ: Nottingham, United KingdomReported employees: 501-1,000 | Nottingham, United Kingdom | 501-1,000 | Exact match | 598 contacts → |
“At Sygnature Discovery, a global drug discovery CRO, we create exceptional scientific outcomes.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | O2h Discoveryo2hdiscovery.co HQ: Cambridge, United KingdomReported employees: 501-1,000 | Cambridge, United Kingdom | 501-1,000 | Exact match | 517 contacts → |
“Founded in 2005, o2h discovery is a Contract Research Organisation which has an integrated drug discovery platform operating from our state-of-the-art research centre in India and…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Veramedveramed.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 514 contacts → |
“Veramed is a Clinical Research Organization (CRO) that provides expert data management, biostatistics and programming services to the pharmaceutical and biotech industry.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | CALYXcalyx.ai HQ: Nottingham, United KingdomReported employees: 1,001-5,000 | Nottingham, United Kingdom | 1,001-5,000 | Exact match | 424 contacts → |
“Calyx and Invicro are now Perceptive!” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Phastarphastar.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 386 contacts → |
“Phastar is an award-winning specialist biometrics and data science CRO, trusted by pharma, biotech, and medical device companies worldwide.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | WEP Clinicalwepclinical.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 359 contacts → |
“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 description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | MAC Clinical Researchmacplc.com HQ: Blackpool, United KingdomReported employees: 201-500 | Blackpool, United Kingdom | 201-500 | Exact match | 317 contacts → |
“MAC Clinical Research is a leading full-service, global Contract Research Organisation (CRO) with over 30 years of experience in clinical trial management.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Simbec-Orionsimbecorion.com HQ: Merthyr Tydfil, United KingdomReported employees: 201-500 | Merthyr Tydfil, United Kingdom | 201-500 | Exact match | 308 contacts → |
“Our passion for improving patients’ lives motivates us to apply our skills, experience, and knowledge to advance medicine.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Futuremedsfuturemeds.com HQ: Liverpool, United KingdomReported employees: 501-1,000 | Liverpool, United Kingdom | 501-1,000 | Exact match | 303 contacts → |
“FutureMeds is an independent, fully-owned European Site Network and DCT service provider dedicated to running patient-centric clinical trials and delivering quality data for the…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Richmond Pharmacologyrichmondpharmacology.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 235 contacts → |
“At Richmond, we're on a mission to transform healthcare by delivering faster answers and turning hope into tangible solutions.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HVIVOhvivo.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 229 contacts → |
“hVIVO plc (Ticker: HVO) is a science‑led early‑phase drug development company purpose‑built to meet the growing complexity of modern clinical research.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Hammersmith Medicines Research LTDhmrlondon.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 223 contacts → |
“HMR is a Contract Research Organisation (CRO).” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Illingworth Research Group A Syneos Health Companyillingworthresearch.com HQ: Macclesfield, United KingdomReported employees: 51-200 | Macclesfield, United Kingdom | 51-200 | Exact match | 195 contacts → |
“Illingworth Research Group™, a Syneos Health® company, is a leading provider of clinical research home health services, providing highly trained, qualified and experienced…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Concept Life Sciencesconceptlifesciences.com HQ: High Peak, United KingdomReported employees: 201-500 | High Peak, United Kingdom | 201-500 | Exact match | 189 contacts → |
“Concept Life Sciences is a knowledge-based, science-led and customer-focused contract research and manufacturing organisation with world-leading expertise in the pharmaceutical…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Quanticatequanticate.com HQ: Hitchin, United KingdomReported employees: 201-500 | Hitchin, United Kingdom | 201-500 | Exact match | 183 contacts → |
“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 description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Synexa Life Sciencessynexagroup.com HQ: Manchester, United KingdomReported employees: 201-500 | Manchester, United Kingdom | 201-500 | Exact match | 181 contacts → |
“Synexa Life Sciences is a biomarker and bioanalytical lab CRO, specialising in the development, validation, and delivery of a wide range of complex and custom-designed assays.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Vigilarevigilarebp.com HQ: Ruislip, United KingdomReported employees: 51-200 | Ruislip, United Kingdom | 51-200 | Exact match | 152 contacts → |
“We are Vigilare BioPharma, a global Regulatory partner for Pharmaceuticals, Generics, Consumer Healthcare Products and Medical Devices.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Panthera Biopartnerspanthera-bio.com HQ: Preston, United KingdomReported employees: 11-50 | Preston, United Kingdom | 11-50 | Exact match | 147 contacts → |
“Panthera is an independent SMO working with pharmaceutical and contract research organizations to find the right patient, for the right trial, at the right time through the…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Clintecclintec.com HQ: Glasgow, United KingdomReported employees: 501-1,000 | Glasgow, United Kingdom | 501-1,000 | Exact match | 137 contacts → |
“Clintec, an IQVIA company, is an innovative, medium-sized, global Contract Research Organization providing global full and functional service support to the pharmaceutical…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Mdgroupmdgroup.com HQ: Bracknell, United KingdomReported employees: 51-200 | Bracknell, United Kingdom | 51-200 | Exact match | 132 contacts → |
“We’re on a mission to make life better for patients taking part in clinical trials around the world-and for the caregivers who support them.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Arcinovaarcinova.com HQ: Alnwick, United KingdomReported employees: 51-200 | Alnwick, United Kingdom | 51-200 | Exact match | 121 contacts → |
“Arcinova, A Quotient Sciences Company, is dedicated to providing innovative contract research, development, and manufacturing services.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Huntingdon Life Sciencesenvigo.com HQ: Huntingdon, United KingdomReported employees: 1,001-5,000 | Huntingdon, United Kingdom | 1,001-5,000 | Exact match | 121 contacts → |
“Huntingdon Life Sciences was founded in 1952.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Transpharmation LTDtranspharmation.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 119 contacts → |
“Transpharmation is a contract research organisation led by scientists.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 381 company matches
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Early phase clinical research organizations: dataset insights
October 11, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
381 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 381 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 11, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Early phase clinical research organizations by metro
Questions about this company list
What does Exact match mean for early phase clinical research organizations?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many early phase clinical research organizations did RevenueBase find based in the United Kingdom?
The saved snapshot records 381 matching company records, 18,841 tracked contacts and 9,344 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 11, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Early phase clinical research organizations by geography
- Early phase clinical research organizations based in Melbourne, Australia
- Early phase clinical research organizations based in Sao Paulo, Brazil
- Early phase clinical research organizations based in Montreal, Canada
- Early phase clinical research organizations based in Toronto, Canada
- Early phase clinical research organizations based in Paris, France
- Early phase clinical research organizations based in Berlin, Germany
- Early phase clinical research organizations based in Ahmedabad, India
- Early phase clinical research organizations based in Bangalore, India
- Early phase clinical research organizations based in Hyderabad, India
- Early phase clinical research organizations based in Navi Mumbai, India
- Early phase clinical research organizations based in Pune, India
- Early phase clinical research organizations based in Warsaw, Poland
Cite this list
RevenueBase Data Team. Top 25 early phase clinical research organizations based in the United Kingdom. Snapshot: October 11, 2026. https://revenuebase.ai/companies/early-phase-clinical-research-organizations/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Early phase clinical research organizations based in Melbourne, Australia
- Early phase clinical research organizations based in Sao Paulo, Brazil
- Early phase clinical research organizations based in Montreal, Canada
- Early phase clinical research organizations based in Toronto, Canada
- Early phase clinical research organizations based in Paris, France
- Early phase clinical research organizations based in Berlin, Germany