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Top 20 Immunology Companies of 2025

Shots: 

  • Immunology continues to be a key focus area, with biopharmaceutical companies rigorously advancing innovative therapies including drugs, vaccines, and antibodies to address evolving patient needs and improve disease outcomes 
  • In 2024, the global immunology market size was valued at $109.4B and expected to reach $254.23B by 2032, with a CAGR of 11.8% from 2024 to 2032. AbbVie with $26.68B reported segment revenue ranks first in our list followed by Johnson & Johnson and Sanofi 
  • PharmaShots brings a concise report on the Top 20 Immunology Companies of 2025. 
Rank Company Immunology Revenue (2024 $B) Immunology Revenue (2023 $B) Percentage Change (%) 
AbbVie 26.68 26.13 2.10 
Johnson & Johnson 17.82 18.05 -1.27 
Sanofi 13.61 12.21 11.47 
Novartis 9.29 7.79 19.26 
AstraZeneca 7.41 6.39 15.96 
Amgen 7.29   6.45 12.92 
Roche 5.66 7.64 -25.92 
Takeda 5.4 5.58 -3.23 
Biogen 5.1 5.4 -5.56 
10 Bristol-Myers Squibb 4.49 4.2 6.90 
11 Incyte 3.34 3.09 8.09 
12 UCB 2.85 2.53    12.64 
13 Eli Lilly 2.45 2.05 19.51 
14 Pfizer 2.36 3.02 -21.85 
15 argenx 2.2 1.19 84.87 
16 GSK 1.87 1.71 9.36 
17 Astellas 1.35 1.43 -5.59 
18 Organon & Co. 0.76 0.65 16.92 
19 Mitsubishi Tanabe Pharma  0.66 1.71 -61.40 
20 Merck & Co. 0.65 0.89 -26.97 

Note: Columns 1 and 2 represent ranks and companies, while Columns 3, 4, and 5 showcase the total immunology revenue of 2024, the total immunology revenue of 2023, and the percentage change. 

20. Merck & Co.  

Immunology Segment Revenue: $0.65B 

Founded Year: 1891 

Market Cap: $210.88B 

Total Employees: 75,000 

Headquarters: Rahway, New Jersey. 

Stock Exchange: NYSE 

  • Merck delivers innovative therapies across human and animal health through its pharmaceutical and animal health segments, focusing on medicines, vaccines, biologics, and related products 
  • Under its pharmaceutical segment, Merck markets Simponi and Remicade for autoimmune diseases. In 2024, immunology revenue declined by 26.97% due to lower sales of both products 
  • In October 2024, Mestag Therapeutics partnered with MSD in a licensing and research collaboration to discover new targets for inflammatory diseases. 

19. Mitsubishi Tanabe Pharma (Bain Capital) 

Immunology Segment Revenue: $0.66B 

Founded Year: 1993 

Market Cap: $1B 

Total Employees: ~3,000 

Headquarters: Osaka, Japan 

Stock Exchange: TYO 

  • Mitsubishi Tanabe Pharma Corporation (MTPC) is a part of Bain Capital that manufactures and commercializes pharmaceutical drugs for various diseases  
  • The total immunology revenue generated by autoimmune products Stelara, Simponi & Gilenya (Royalty revenue) sales decreased by 61.40% in 2024 as compared to 2023, owing to the lower sales of each product 
  • In February 2025, Bain signed a definitive agreement to acquire Mitsubishi Tanabe Pharma Corporation. 

18. Organon & Co.  

Immunology Segment Revenue: $0.76B 

Founded Year: 2020 

Market Cap: $2.63B 

Total Employees: 10,000 

Headquarters: New Jersey, United States 

Stock Exchange: NYSE 

  • Organon is a research-based global healthcare company that discovers, develops, and commercializes medicinal products for women’s health  
  • In immunology, the company develops Arcoxia (etoricoxib) and three biosimilars Hadlima (adalimumab-bwwd), Brenzys (etanercept), & Renflexis (infliximab-abda). In 2024, the immunology revenue increased by 16.92% as compared to 2023, mainly driven by increased sales of Hadlima and Arcoxia  
  • In October 2024, Organon completed the acquisition of Dermavant, a company developing and commercializing innovative therapeutic solutions in immuno-dermatology. 

17. Astellas 

Immunology Segment Revenue: $1.35B 

Founded Year: 1923 

Market Cap: $18.42B 

Total Employees: ~13,600 

Headquarters: Tokyo, Japan 

Stock Exchange: TYO 

  • Astellas is a multinational pharmaceutical company that focuses on genetic regulation, immuno-oncology, blindness & regeneration, and targeted protein degradation   
  • Astellas’ only immunology product Prograf (tacrolimus), comes in different formulations, including Advagraf, Graceptor, and ASTAGRAF XL. In 2024, segment revenue dipped by 5.59% as compared to 2023 sales, owing to the lower sales of Prograf  
  • In February 2024, Astellas and Kelonia Therapeutics entered into a research and license agreement to develop novel immuno-oncology therapeutics.  

16. GSK 

Immunology Segment Revenue: $1.87B 

Founded Year: 2000 

Market Cap: $76.57B 

Total Employees: ~68,600 

Headquarters: London, United Kingdom 

Stock Exchange: LON 

  • GSK is a British multinational biopharma company that researches, discovers, manufactures, and commercializes therapies for infectious diseases, HIV, immunology, respiratory, and cancer  
  • GSK’s only immunology asset is Benlysta, which contributed to the total immunology sales of the company and showed an increment of 9.36% in 2024 as compared to 2023, due to strong demand for Benlysta in the US, Europe, and international markets  
  • In October 2024, GSK signed an agreement to acquire CMG1A46 from Chimagen Biosciences to expand its immunology pipeline. 

15. argenx 

Immunology Segment Revenue: $2.2B 

Founded Year: 2008 

Market Cap: $35.06B 

Total Employees: ~1,600 

Headquarters: Amsterdam, Netherlands 

Stock Exchange: EBR 

  • argenx is a commercial-stage biopharmaceutical company developing and commercializing antibody-based therapies for the treatment of autoimmune diseases  
  • argenx’s immunology portfolio comprises VYVGART and VYVGART Hytrulo. In 2024, immunology sales increased by 84.87% as compared to 2023, owing to increased sales of VYVGART   
  • In November 2024, Steritas collaborated with argenx to advance evidence for novel steroid-sparing therapeutics. 

14. Pfizer 

Immunology Segment Revenue: $2.36B 

Founded Year: 1849 

Market Cap: $144.18B 

Total Employees: 81,000 

Headquarters: New York, United States 

Stock Exchange: NYSE 

  • Pfizer is an American multinational company that develops, manufactures, and markets medicines and vaccines. The company operates in three segments: Biopharma, PC1 and Pfizer Ignite 
  • Xeljanz, Enbrel, and Inflectra/Remsima are the products that fall under immunology portfolio. In 2024, Pfizer’s immunology revenue decreased by 21.85% as compared to 2023, owing to the reduced sales of Xeljanz and Enbrel  
  • In October 2024, Pfizer’s HYMPAVZI received the US FDA approval for the treatment of adults and adolescents with hemophilia A or B without inhibitor. 

13. Eli Lilly & Company 

Immunology Segment Revenue: $2.45B 

Founded Year: 1876 

Market Cap: $757.14B 

Total Employees: 47,000 

Headquarters: Indianapolis, United States 

Stock Exchange: NYSE 

  • Eli Lilly is an American pharmaceutical company that specializes in bone and joint disease, cancer, cardiovascular disease, diabetes, endocrine illness, immunology, neurodegeneration, neurology, and pain management 
  • The immunology segment of Eli Lilly includes drugs like Taltz and Olumiant among others. In 2024, the immunology segment showed an increase of 19.51% in revenue as compared to 2023, majorly driven by increased sales of Taltz   
  • In September 2024, the US FDA approved Lilly’s EBGLYSS for adults and children 12 years and older with moderate-to-severe atopic dermatitis. 

12. UCB 

Immunology Segment Revenue: $2.85B 

Founded Year: 1928 

Market Cap: $40.91B 

Total Employees: 9,400 

Headquarters: Brussels, Belgium 

Stock Exchange: EBR 

  • A multinational biopharma company, UCB, develops, manufactures, and commercializes therapies in neurology, immunology, and rare diseases  
  • In immunology, UCB has three products Cimzia, Bimzelx, and Evenity. UCB reported an increase of 12.64% in the segment revenue in 2024 as compared to 2023, owing to increased sales of Bimzelx and Evenity 
  • In September 2024, UCB and Biogen reported the positive topline data from P-III study of Dapirolizumab Pegol in Systemic Lupus Erythematosus. 

11. Incyte 

Immunology Segment Revenue: $3.34B 

Founded Year: 2002 

Market Cap: $13.68B 

Total Employees: ~2,600 

Headquarters: Delaware, United States 

Stock Exchange: NASDAQ 

  • A global biopharmaceutical company, Incyte discovers, develops, and commercializes proprietary therapeutics. The company works in areas of Hematology/Oncology and Inflammation & Autoimmunity 
  • Incyte’s Jakafi, Olumiant, and Jakavi (royalty revenue) are the products approved for autoimmune indications. In 2024, the company reported an increase of 8.09% in its segment revenue as compared to 2023, owing to the increased sales of Jakafi 
  • In August 2024, Incyte and Syndax reported the US FDA approval of Niktimvo to treat chronic graft-versus-host disease (GVHD). 

10. Bristol-Myers Squibb 

Immunology Segment Revenue: $4.49B 

Founded Year: 1887 

Market Cap: $99.68B 

Total Employees: 34,100 

Headquarters: New Jersey, United States 

Stock Exchange: NYSE 

  • BMS is an American biopharma company that discovers, develops, licenses, manufactures, markets, and distributes biopharmaceutical products on a global basis 
  • The company has three autoimmune products: Orencia, Sotyktu, and Zeposia. Orencia contributed the most to the total immunology revenue. The company’s immunology revenue in 2024 increased by 6.9% as compared to 2023, owing to the overall increased sales of autoimmune products   
  • In April 2024, Repertoire Immune Medicines and BMS entered in a multi-year strategic collaboration to develop tolerizing vaccines for autoimmune diseases. 

09. Biogen 

Immunology Segment Revenue: $5.1B 

Founded Year: 1978 

Market Cap: $19.19B 

Total Employees: ~7,600 

Headquarters: Massachusetts, United States 

Stock Exchange: NASDAQ 

  • Biogen is a biopharmaceutical company that discovers, develops, and delivers innovative treatments for Alzheimer’s, lupus, multiple sclerosis, and other therapy areas 
  • Tysabri, Flixabi, Tecfidera, Vumerity, Avonex, Plegridy, Fampyra, Benepali, and Imraldi are the approved products of Biogen for autoimmune indications. In 2024, the immunology segment faced a decline of 5.56% as compared to 2023, due to low sales of most of the immunological products 
  • In October 2024, Biogen received the US FDA’s BTD for Felzartamab for the treatment of antibody-mediated rejection in kidney transplant recipients. 

08. Takeda 

Immunology Segment Revenue: $5.4B 

Founded Year: 1781 

Market Cap: $47.2B 

Total Employees: 47,000 

Headquarters: Tokyo, Japan 

Stock Exchange: TYO 

  • Takeda is a multinational pharmaceutical company that focuses on five key business areas, including Gastrointestinal, Rare diseases, PDT Immunology, Oncology, and Neuroscience   
  • The company’s PDT Immunology segment includes immunoglobulin products and Albumin products. In 2024, the segment revenue decreased by 3.23% compared to 2023, owing to the lower sales of the PDT Immunology products 
  • In May 2024, AC Immune and Takeda entered into an exclusive option and license agreement for active immunotherapy targeting amyloid beta for Alzheimer’s disease. 

07. Roche 

Immunology Segment Revenue: $5.66B 

Founded Year: 1896 

Market Cap: $305.09B 

Total Employees: ~103,200 

Headquarters: Basel, Switzerland 

Stock Exchange: SWX 

  • Roche is a global multinational healthcare company that discovers, develops, and commercializes therapeutic and diagnostic products. The company operates under two business segments, i.e. Pharmaceuticals and Diagnostics    
  • Actemra/RoActemra, Xolair, and MabThera/Rituxan are the products under the immunology segment of Roche. In 2024, immunology showed a 25.92% decrease in its revenue compared to 2023, due to lower sales of MabThera/Rituxan 
  • In February 2024, the US FDA approved Xolair as the first and only medicine for children and adults with one or more food allergies. 

06. Amgen 

Immunology Segment Revenue: $7.29B 

Founded Year: 1980 

Market Cap: $158.49B 

Total Employees: 28,000 

Headquarters: California, United States 

Stock Exchange: NASDAQ 

  • Amgen is a global biotech company that discovers, develops, manufactures, and delivers innovative therapies. The company focuses on cardiovascular diseases, oncology, bone health, neuroscience, nephrology, and inflammation 
  • Enbrel, Otezla, Tavneos, Tepezza, Uplizna and Amjevita (biosimilar to Humira) are the company’s key autoimmune products. In 2024, the immunology revenue increased 12.92% as compared to 2023, predominantly due to the overall increased sales of all the autoimmune products 
  • In 2024, the US FDA accepted the regulatory submission for the P-III MITIGATE study of Uplizna under priority review with a PDUFA action date of April 3, 2025. 

05. AstraZeneca 

Immunology Segment Revenue: $7.41B 

Founded Year: 1999 

Market Cap: $228.18B 

Total Employees: ~94,300 

Headquarters: Cambridge, United Kingdom 

Stock Exchange: LON 

  • AstraZeneca discovers, develops, and commercializes medicines in oncology, cardiovascular, renal, metabolic, respiratory, and immunology, vaccines and immune therapies, and rare diseases   
  • Saphnelo, Soliris, and Ultomiris are AstraZeneca’s immunology products. In 2024, the company’s immunology revenue increased by 15.96% as compared to 2023, majorly driven by the increased sales of Ultomiris  
  • In September 2024, AstraZeneca started a P-III study for SAPHNELO in cutaneous lupus (LAVENDER) and idiopathic inflammatory myopathies (JASMINE). 

04. Novartis 

Immunology Segment Revenue: $9.29B 

Founded Year: 1996 

Market Cap: $246.35B 

Total Employees: ~27,100 

Headquarters: Basel, Switzerland 

Stock Exchange: SWX 

  • Novartis discovers, develops, and commercializes products in cardiovascular, renal, metabolic (CRM), immunology, neuroscience, and oncology   
  • Cosentyx, Xolair, Ilaris, Gilenya, Kesimpta, Mayzent, and Jakavi (GvHD) are the company’s immunology products. In 2024, the total immunology revenue increased by 19.26% as compared to 2023, owing to the higher sales of immunology medicines   
  • In March 2024, IFM Therapeutics reported that Novartis exercised its option to acquire all of the outstanding capital stock of IFM Due, a subsidiary company of IFM, to develop the STING antagonist program targeting the innate immune system. 

03. Sanofi 

Immunology Segment Revenue: $13.61B 

Founded Year: 1956 

Market Cap: $121.96B 

Total Employees: ~82,900 

Headquarters: Paris, France 

Stock Exchange: NASDAQ 

  • Sanofi is a global French pharmaceutical and healthcare company that researches, develops, manufactures, and markets pharmaceutical products in immunology and inflammation, neurology, oncology, rare blood disorders, rare diseases, and vaccines    
  • Dupixent and Kevzara are Sanofi’s immunology products. In 2024, the segment revenue increased by 11.47% as compared to 2023, owing to increased sales of Dupixent 
  • In October 2024, Recordati enters into an agreement with Sanofi to acquire the global rights to Enjaymo, strengthening its rare diseases franchise. 

02. Johnson & Johnson 

Immunology Segment Revenue: $17.82B 

Founded Year: 1886 

Market Cap: $406.87B 

Total Employees: ~139,800 

Headquarters: New Jersey, United States 

Stock Exchange: NYSE 

  • J&J is a global healthcare company that provides new medications and MedTech solutions in oncology, immunology, neuroscience, cardiology, pulmonary hypertension, and ophthalmology  
  • Remicade, Simponi/Simponi Aria, Stelara, and Tremfya, among others are the company’s immunology products. In 2024, the immunology segment revenue decreased by 1.27% as compared to 2023, owing to the lower sales of Stelara and Remicade  
  • In July 2024, J&J acquired Yellow Jersey Therapeutics, strengthening its pipeline to lead in atopic dermatitis. 

01. AbbVie 

Immunology Segment Revenue: $26.68B 

Founded Year: 2013 

Market Cap: 6.45 

Total Employees: 55,000 

Headquarters: Illinois, United States 

Stock Exchange: NYSE 

  • AbbVie discovers, manufactures, and commercializes products in oncology, immunology, neuroscience, eye care, aesthetics, and other chronic and complex diseases  
  • Humira, Skyrizi, and Rinvoq are the three products in AbbVie’s immunology segment. In 2024, AbbVie’s revenue increased by 2.1% compared to 2023, due to high sales of Skyrizi and Rinvoq 
  • In December 2024, AbbVie entered into a definitive agreement under which AbbVie acquired Nimble to strengthen its immunology pipeline. 

Sources:     

  • Annual reports   
  • SEC Filings   
  • Press releases   
  • Company websites   

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