Gilead Sciences, Inc., a biopharmaceutical company, discovers, develops, and commercializes medicines in the areas of unmet medical need in the United States, Europe, and internationally. The company provides Biktarvy, Genvoya, Descovy, Odefsey, Truvada, Complera/ Eviplera, Stribild, Sunlencs, and Atripla products for the treatment of HIV/AIDS; Veklury, an injection for intravenous use, for the treatment of COVID-19; and Epclusa, Harvoni, Vemlidy, and Viread for the treatment of viral hepatitis. It also offers Yescarta, Tecartus, and Trodelvy products for the treatment of oncology; Letairis, an oral formulation for the treatment of pulmonary arterial hypertension; and AmBisome, a liposomal formulation for the treatment of serious invasive fungal infections. The company has collaboration agreements with Arcus Biosciences, Inc.; Merck Sharp & Dohme Corp.; Pionyr Immunotherapeutics Inc.; Tizona Therapeutics, Inc.; Galapagos NV; Janssen Sciences Ireland Unlimited Company; Japan Tobacco, Inc.; Dragonfly Therapeutics, Inc.; Arcellx, Inc.; Everest Medicines; Merck & Co, Inc.; Tentarix Biotherapeutics Inc.; Marengo Therapeutics; and Assembly Biosciences, Inc. It also has research collaboration, option, and license agreement with Merus N.V. for the discovery of novel dual tumor-associated antigens (TAA) targeting trispecific antibodies. The company was incorporated in 1987 and is headquartered in Foster City, California.

Vir Biotechnology, Inc., an immunology company, develops therapeutic products to treat and prevent serious infectious diseases. Its clinical development pipeline consists of product candidates targeting hepatitis delta virus (HDV), hepatitis B virus (HBV), and human immunodeficiency virus (HIV). The company's preclinical candidates include those targeting influenza A and B, coronavirus disease 2019, respiratory syncytial virus (RSV) and human metapneumovirus (MPV), and human papillomavirus (HPV). The company has grant agreements with Bill & Melinda Gates Foundation and National Institutes of Health; an option and license agreement with Brii Biosciences Limited; a collaboration and license agreement with Alnylam Pharmaceuticals, Inc.; license agreements with MedImmune, LLC; collaboration with WuXi Biologics (Hong Kong) Limited and Glaxo Wellcome UK Ltd.; and a collaborative research agreement with GlaxoSmithKline Biologicals S.A, as well as license agreement with Sanofi for three clinical-stage masked T-cell engagers (TCEs) and exclusive use of the protease-cleavable masking platform for oncology and infectious diseases. It also has a manufacturing agreement with Samsung Biologics Co.,Ltd. The company was incorporated in 2016 and is headquartered in San Francisco, California.

Arbutus Biopharma Corporation, a biopharmaceutical company, develops novel therapeutics for chronic Hepatitis B virus (HBV) infection in the United States. Its HBV product pipeline consists of imdusiran (AB-729), a proprietary subcutaneously-delivered RNAi therapeutic product candidate that suppresses all HBV antigens, including HBsAg expression. The company's research and development programs include AB-101, an oral PD-L1 inhibitor to reawaken patients' HBV-specific immune system; and small molecule antiviral medicines to treat coronaviruses, including COVID-19. It has licensing agreements with Gritstone Oncology, Inc; Alnylam Pharmaceuticals, Inc.; Qilu Pharmaceuticals Co, Ltd; Assembly Biosciences, Inc.; Acuitas Therapeutics, Inc.; and Antios Therapeutics, Inc. Arbutus Biopharma Corporation also has a clinical collaboration agreement with Barinthus Biotherapeutics plc to evaluate VTP-300. The company was formerly known as Tekmira Pharmaceuticals Corporation and changed its name to Arbutus Biopharma Corporation in July 2015. Arbutus Biopharma Corporation is headquartered in Warminster, Pennsylvania.

Enanta Pharmaceuticals, Inc., a biotechnology company, discovers and develops small molecule drugs for the treatment of viral infections and liver diseases. Its product pipeline comprises EDP-514, which is in phase 1b clinical development for the treatment of chronic infection with hepatitis B virus or HBV; EDP-938 and EDP-323, which is in phase II clinical development for the treatment of respiratory syncytial virus; EDP-235, which is in phase II clinical development for the treatment of human coronaviruses; and Glecaprevir, which is in the market for the treatment of chronic infection with hepatitis C virus or HCV. The company has a collaborative development and license agreement with Abbott Laboratories to develop, manufacture, and commercialize HCV NS3 and NS3/4A protease inhibitor compounds, including paritaprevir and glecaprevir. Enanta Pharmaceuticals, Inc. was incorporated in 1995 and is headquartered in Watertown, Massachusetts.

Vaxart, Inc., a clinical-stage biotechnology company, discovers and develops oral recombinant protein vaccines based on its proprietary oral vaccine platform. The company's product pipeline includes norovirus vaccine, a bivalent oral tablet vaccine in Phase 2 clinical trial for the GI.1 and GII.4 norovirus strains; coronavirus vaccine, which is in Phase 2 clinical trial, for the treatment of SARS-CoV-2 infection; seasonal influenza vaccine, which is in Phase 2 clinical trial, to treat H1 influenza infection; and human papillomavirus therapeutic vaccine, which is in preclinical stage, that targets HPV-16 and HPV-18 for cervical cancers and precancerous cervical lesions. It has a license agreement with Altesa Biosciences, Inc. to develop and commercialize Vapendavir, a capsid-binding broad-spectrum antiviral. Vaxart, Inc. is headquartered in South San Francisco, California.

Aligos Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on the development of novel therapeutics to address unmet medical needs in viral and liver diseases. Its drug candidate, ALG-055009, a small molecule THR-ß agonist that is in the Phase 2a clinical trial for the treatment of non-alcoholic steatohepatitis (NASH). The company also develops ALG-000184, a capsid assembly modulator, which is completed Phase 1b clinical trial to treat chronic hepatitis B (CHB); and ALG-125755, a siRNA drug candidate, which is in Phase I clinical trial for the treatment of CHB. In addition, it develops ALG-097558, which is in Phase 2 clinical trial for the treatment of coronavirus. The company has entered into license and research collaboration agreement with Merck to discover, research, optimize, and develop oligonucleotides directed against a NASH; license agreement with Emory University to provide hepatitis B virus capsid assembly modulator technology; license agreement with Luxna Biotech Co., Ltd. to develop and commercialize products containing oligonucleotides targeting hepatitis B virus genome; and research, licensing, and commercialization agreement with Katholieke Universiteit Leuven to develop coronavirus protease inhibitors. It also has a clinical collaboration with Xiamen Amoytop Biotech Co., Ltd. Aligos Therapeutics, Inc. was incorporated in 2018 and is headquartered in South San Francisco, California.

HOOKIPA Pharma Inc., a clinical stage biopharmaceutical company, develops immunotherapeutics targeting infectious diseases and cancers based on its proprietary arenavirus platform. The company's lead infectious disease product candidate is HB-200 for the treatment of pembrolizumab which is in Phase 2 of clinical trial; HB-700, a preclinical development for treatment of KRAS mutated cancers, including lung, colorectal, and pancreatic cancers. Its lead product candidates are HB-400 for the treatment of Hepatitis B which is in Phase I of clinical trial and HB-500 for the treatment of HIV which is in Phase I of clinical trial. The company's preclinical stage products include HB-300 program for prostate cancer. It has a collaboration with Gilead Sciences, Inc. to collaborate on preclinical research programs to evaluate potential vaccine products using or incorporating its replicating and non-replicating technology platforms for the treatment, cure, diagnosis, or prevention of Hepatitis B Virus. HOOKIPA Pharma Inc. was incorporated in 2011 and is headquartered in New York, New York.

VBI Vaccines Inc., a commercial-stage biopharmaceutical company, develops and sells vaccines to treat immuno-oncology and infectious disease. It offers hepatitis B (HBV) vaccine under the PreHevbrio, PreHevbri, and Sci-B-Vac brand names. The company also develops VBI-2601, a protein based immunotherapeutic candidate for the treatment of chronic HBV infection; VBI-1901, a glioblastoma cancer vaccine immunotherapeutic candidate; VBI-1501, a prophylactic cytomegalovirus vaccine candidate; and VBI-2501 to treat Zika virus. In addition, it develops coronavirus vaccine candidates that include VBI-2902, VBI-2901, and VBI-2905. The company has collaboration and license agreements with Brii Biosciences Limited, the National Research Council of Canada, and Coalition for Epidemic Preparedness Innovations. The company was formerly known as SciVac Therapeutics Inc. and changed its name to VBI Vaccines Inc. in May 2016. VBI Vaccines Inc. is based in Cambridge, Massachusetts.