United Kingdom

Top 53 largest UK Companies in the Biotechnology industry by Market Cap

This is the list of the largest public listed companies in the Biotechnology industry from the United Kingdom by market capitalization with links to their reference stock.

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Top Biotechnology Companies from the United Kingdom as of Jul. 01, 2025

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Rank Company Market Cap (USD) Country Sector Industry
1 Open Orphan plc $11.39 B United Kingdom UK Healthcare UK Biotechnology
2 Verona Pharma plc $7.78 B United Kingdom UK Healthcare UK Biotechnology
3 Abcam plc $3.58 B

(Dec. 1, 2022)

 United Kingdom UK Healthcare UK Biotechnology
4 Myovant Sciences Ltd. $2.61 B

(Jan. 1, 2023)

 United Kingdom UK Healthcare UK Biotechnology
5 Genus plc $1.92 B United Kingdom UK Healthcare UK Biotechnology
6 Centessa Pharmaceuticals Ltd $1.88 B United Kingdom UK Healthcare UK Biotechnology
7 Immunocore Holdings plc $1.65 B United Kingdom UK Healthcare UK Biotechnology
8 Autolus Therapeutics plc $630.7 M United Kingdom UK Healthcare UK Biotechnology
9 Silence Therapeutics plc $588.4 M

(Nov. 1, 2021)

 United Kingdom UK Healthcare UK Biotechnology
10 Bicycle Therapeutics plc $514.6 M United Kingdom UK Healthcare UK Biotechnology
11 Oxford Biomedica plc $488.1 M United Kingdom UK Healthcare UK Biotechnology
12 Mereo BioPharma Group plc $456.3 M United Kingdom UK Healthcare UK Biotechnology
13 Orchard Therapeutics plc $373.3 M

(Jan. 1, 2024)

 United Kingdom UK Healthcare UK Biotechnology
14 4basebio PLC $209.7 M United Kingdom UK Healthcare UK Biotechnology
15 Arix Bioscience plc $208.8 M

(Jan. 1, 2024)

 United Kingdom UK Healthcare UK Biotechnology
16 Bioventix plc $201.1 M United Kingdom UK Healthcare UK Biotechnology
17 Vaccitech plc $192.7 M

(Jan. 1, 2024)

 United Kingdom UK Healthcare UK Biotechnology
18 Avacta Group plc $172.9 M United Kingdom UK Healthcare UK Biotechnology
19 Scancell Holdings plc $139.0 M United Kingdom UK Healthcare UK Biotechnology
20 Diaceutics plc $135.4 M United Kingdom UK Healthcare UK Biotechnology
21 F-star Therapeutics, Inc. $123.7 M

(Jan. 1, 2023)

 United Kingdom UK Healthcare UK Biotechnology
22 Redx Pharma plc $108.9 M

(Jan. 1, 2024)

 United Kingdom UK Healthcare UK Biotechnology
23 Agronomics Limited $101.3 M United Kingdom UK Healthcare UK Biotechnology
24 e-therapeutics plc $83.6 M

(Jan. 1, 2024)

 United Kingdom UK Healthcare UK Biotechnology
25 Tiziana Life Sciences plc $77.1 M

(Oct. 1, 2021)

 United Kingdom UK Healthcare UK Biotechnology
26 Adaptimmune Therapeutics plc $66.3 M United Kingdom UK Healthcare UK Biotechnology
27 SkinBioTherapeutics plc $59.1 M United Kingdom UK Healthcare UK Biotechnology
28 C4X Discovery Holdings plc $57.3 M

(Jan. 1, 2024)

 United Kingdom UK Healthcare UK Biotechnology
29 Akari Therapeutics, Plc $37.6 M United Kingdom UK Healthcare UK Biotechnology
30 Sareum Holdings plc $37.3 M United Kingdom UK Healthcare UK Biotechnology

Top Biotechnology Companies from the United Kingdom as of Jul. 01, 2025

1. Open Orphan plc

Company Profile: Open Orphan plc
Market Cap (USD): $11.39 B
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

2. Verona Pharma plc

Company Profile: Verona Pharma plc
Market Cap (USD): $7.78 B
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

3. Abcam plc

Company Profile: Abcam plc
Market Cap (USD): $3.58 B (Dec. 1, 2022)
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

4. Myovant Sciences Ltd.

Company Profile: Myovant Sciences Ltd.
Market Cap (USD): $2.61 B (Jan. 1, 2023)
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

5. Genus plc

Company Profile: Genus plc
Market Cap (USD): $1.92 B
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

6. Centessa Pharmaceuticals Ltd

Company Profile: Centessa Pharmaceuticals Ltd
Market Cap (USD): $1.88 B
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

7. Immunocore Holdings plc

Company Profile: Immunocore Holdings plc
Market Cap (USD): $1.65 B
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

8. Autolus Therapeutics plc

Company Profile: Autolus Therapeutics plc
Market Cap (USD): $630.7 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

9. Silence Therapeutics plc

Company Profile: Silence Therapeutics plc
Market Cap (USD): $588.4 M (Nov. 1, 2021)
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

10. Bicycle Therapeutics plc

Company Profile: Bicycle Therapeutics plc
Market Cap (USD): $514.6 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

11. Oxford Biomedica plc

Company Profile: Oxford Biomedica plc
Market Cap (USD): $488.1 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

12. Mereo BioPharma Group plc

Company Profile: Mereo BioPharma Group plc
Market Cap (USD): $456.3 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

13. Orchard Therapeutics plc

Company Profile: Orchard Therapeutics plc
Market Cap (USD): $373.3 M (Jan. 1, 2024)
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

14. 4basebio PLC

Company Profile: 4basebio PLC
Market Cap (USD): $209.7 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

15. Arix Bioscience plc

Company Profile: Arix Bioscience plc
Market Cap (USD): $208.8 M (Jan. 1, 2024)
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

16. Bioventix plc

Company Profile: Bioventix plc
Market Cap (USD): $201.1 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

17. Vaccitech plc

Company Profile: Vaccitech plc
Market Cap (USD): $192.7 M (Jan. 1, 2024)
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

18. Avacta Group plc

Company Profile: Avacta Group plc
Market Cap (USD): $172.9 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

19. Scancell Holdings plc

Company Profile: Scancell Holdings plc
Market Cap (USD): $139.0 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

20. Diaceutics plc

Company Profile: Diaceutics plc
Market Cap (USD): $135.4 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

21. F-star Therapeutics, Inc.

Company Profile: F-star Therapeutics, Inc.
Market Cap (USD): $123.7 M (Jan. 1, 2023)
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

22. Redx Pharma plc

Company Profile: Redx Pharma plc
Market Cap (USD): $108.9 M (Jan. 1, 2024)
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

23. Agronomics Limited

Company Profile: Agronomics Limited
Market Cap (USD): $101.3 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

24. e-therapeutics plc

Company Profile: e-therapeutics plc
Market Cap (USD): $83.6 M (Jan. 1, 2024)
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

25. Tiziana Life Sciences plc

Company Profile: Tiziana Life Sciences plc
Market Cap (USD): $77.1 M (Oct. 1, 2021)
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

26. Adaptimmune Therapeutics plc

Company Profile: Adaptimmune Therapeutics plc
Market Cap (USD): $66.3 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

27. SkinBioTherapeutics plc

Company Profile: SkinBioTherapeutics plc
Market Cap (USD): $59.1 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

28. C4X Discovery Holdings plc

Company Profile: C4X Discovery Holdings plc
Market Cap (USD): $57.3 M (Jan. 1, 2024)
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

29. Akari Therapeutics, Plc

Company Profile: Akari Therapeutics, Plc
Market Cap (USD): $37.6 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

30. Sareum Holdings plc

Company Profile: Sareum Holdings plc
Market Cap (USD): $37.3 M
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

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