Top Pharmaceutical Manufacturing Companies in the UK
There are 1,876 pharmaceutical manufacturing companies in the UK. This page breaks that total down the way a list actually gets built — by sub-industry, by location, and by company size — so you can see how big the addressable slice is before you commit budget to a campaign.
Leading pharmaceutical manufacturing companies
Ranked by employee band. Companies House does not publish revenue, and its employee figures are unreliable, so bands come from verified company profiles.
| # | Company | Website | Employees |
|---|---|---|---|
| 1 | GSK | gsk.com | 10,000+ |
| 2 | AstraZeneca | astrazeneca.com | 10,000+ |
| 3 | Hikma Pharmaceuticals | hikma.com | 5,001–10,000 |
| 4 | ICON Strategic Solutions | iconplc.com | 10,000+ |
| 5 | Mundipharma | mundipharma.com | 1,001–5,000 |
| 6 | Oxford Nanopore Technologies | nanoporetech.com | 1,001–5,000 |
| 7 | LGC | lgcgroup.com | 1,001–5,000 |
| 8 | Verbatim Pharma | verbatimpharma.com | 11–50 |
| 9 | Accord Healthcare | accord-healthcare.com | 1,001–5,000 |
| 10 | Sinclair | sinclair.com | 501–1,000 |
| 11 | ViiV Healthcare | viivhealthcare.com | 1,001–5,000 |
| 12 | Ashfield, part of UDG Healthcare (now Inizio) | inizio.health | 5,001–10,000 |
| 13 | Alliance Healthcare | alliance-healthcare.com | 10,000+ |
| 14 | Qinecsa Solutions | qinecsa.com | 1,001–5,000 |
| 15 | Fishawack Health | avalerehealth.com | 1,001–5,000 |
| 16 | Dechra | dechra.com | 1,001–5,000 |
| 17 | Almac Group | almacgroup.com | 5,001–10,000 |
| 18 | Isomorphic Labs | isomorphiclabs.com | 201–500 |
| 19 | Star People | earestarpeople.com | 501–1,000 |
| 20 | Hertility | hertilityhealth.com | 11–50 |
| 21 | Abcam | abcam.com | 1,001–5,000 |
| 22 | PrimeVigilance | primevigilance.com | 1,001–5,000 |
| 23 | Reuters Events Pharma | reutersevents.com | 11–50 |
| 24 | Cell and Gene Therapy Catapult | catapult.org.uk | 201–500 |
| 25 | ERGOMED | ergomedcro.com | 1,001–5,000 |
| 26 | Genomics England | genomicsengland.co.uk | 201–500 |
| 27 | Orchard Therapeutics - U.S. | orchard-tx.com | 51–200 |
| 28 | Adaptimmune | adaptimmune.com | 201–500 |
| 29 | ADVANZ PHARMA | advanzpharma.com | 501–1,000 |
| 30 | Exscientia | recursion.com | 501–1,000 |
| 31 | OXB | oxb.com | 501–1,000 |
| 32 | Theramex | theramex.com | 201–500 |
| 33 | TOPRA - The Organisation for Professionals in Regulatory Affairs | topra.org | 11–50 |
| 34 | Perceptive Inc. | perceptive.com | 1,001–5,000 |
| 35 | Syngene | synoptics.co.uk | 11–50 |
| 36 | Bicycle Therapeutics | bicycletherapeutics.com | 201–500 |
| 37 | Novogene Europe | novogene.com | 1,001–5,000 |
| 38 | Clintec | clintec.com | 501–1,000 |
| 39 | Immunocore | immunocore.com | 201–500 |
| 40 | European Pharmaceutical Review | europeanpharmaceuticalreview.com | 51–200 |
| 41 | Clinigen | clinigen.com | 1,001–5,000 |
| 42 | The Association of the British Pharmaceutical Industry (ABPI) | abpi.org.uk | 51–200 |
| 43 | Kinapse | kinapse.com | 501–1,000 |
| 44 | Kyowa Kirin International plc. | kyowakirininternational.com | 501–1,000 |
| 45 | CALYX | calyx.ai | 1,001–5,000 |
| 46 | Envision Pharma Group | envisionpharmagroup.com | 1,001–5,000 |
| 47 | Touchlight | touchlight.com | 51–200 |
| 48 | Phastar | phastar.com | 201–500 |
| 49 | Autolus Therapeutics | autolus.com | 501–1,000 |
| 50 | Sygnature Discovery | sygnaturediscovery.com | 501–1,000 |
Need the full list with verified decision-maker contacts? Book a meeting.
The largest sub-industry is manufacture of basic pharmaceutical products with 1,245 companies, which is where most pharmaceutical manufacturing outbound in the UK ends up pointed. The tail below it is usually less contested and worth a separate sequence.
Geographically it concentrates in London (437 companies), followed by Birmingham, Manchester, Cardiff. If your reps work by territory, that split is the fastest way to divide the list.
By headcount, 229 are micro companies of 1–9 people and 41 sit in the 10–249 range — usually the sweet spot for outbound, since they are large enough to have a budget holder and small enough that the decision maker answers.
Pharmaceutical Manufacturing by sub-industry
| Sub-industry | Companies |
|---|---|
| Manufacture of basic pharmaceutical products | 1,245 |
| Manufacture of pharmaceutical preparations | 564 |
| Manufacture of cartons, boxes & cases of corrugated paper & paperboard | 26 |
| Manufacture of paper stationery | 18 |
| Manufacture of paper & paperboard | 11 |
| Manufacture of paper & paperboard goods | 10 |
| Manufacture of wallpaper | 1 |
| Manufacture of pulp | 1 |
Where pharmaceutical manufacturing companies are based
| City | Companies |
|---|---|
| London | 437 |
| Birmingham | 43 |
| Manchester | 39 |
| Cardiff | 32 |
| Cambridge | 26 |
| Liverpool | 23 |
| Leeds | 20 |
| Ruislip | 20 |
| Glasgow | 18 |
| Nottingham | 18 |
Pharmaceutical Manufacturing by company size
| Employees | Companies |
|---|---|
| 1–9 | 229 |
| 10–49 | 30 |
| 50–249 | 11 |
Headcount is published for 428 of these companies; the rest are in the database without a size band.
Frequently asked questions
How many pharmaceutical manufacturing companies are there in the UK?
Our data covers 1,876 pharmaceutical manufacturing companies in the UK, sourced from Companies House and refreshed continuously.
Can I get decision-maker contacts for pharmaceutical manufacturing companies?
Yes. Every company record can be paired with verified decision-maker contacts — names, job titles, verified email addresses and direct phone numbers. Book a meeting and we will scope the list against your ICP.
How is the pharmaceutical manufacturing segment defined?
Companies are classified using official industry codes from the business register, not keyword guesses on company names, so the segment boundaries match what the company actually registered as.