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.

Syndax Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, develops therapies for the treatment of cancer. Its lead product candidates are revumenib, a potent, selective, small molecule inhibitor of the menin-MLL binding interaction for the treatment of KMT2A rearranged, acute leukemias, and solid tumor; and SNDX-6352 or axatilimab, a monoclonal antibody that blocks the colony stimulating factor 1, or CSF-1 receptor for the treatment of patients with chronic graft versus host disease (cGVHD) and idiopathic pulmonary fibrosis (IPF). The company is also developing Entinostat. It has an agreement with Eddingpharm International Company Limited for licensing, development, and commercialization of Entinostat. Syndax Pharmaceuticals, Inc. was incorporated in 2005 and is headquartered in Waltham, Massachusetts.

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.

Atea Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, discovers, develops, and commercializes antiviral therapeutics for patients with viral infections. Its lead product candidate is AT-527, an oral antiviral candidate that is in Phase 3 SUNRISE-3 clinical trial for the treatment of patients with COVID-19. The company also develops bemnifosbuvir in combination with ruzasvir, which is in Phase 2 clinical trial, for the treatment of hepatitis C virus (HCV); and a protease inhibitor for the treatment of COVID-19. It has a license agreement with MSD International GmbH for the development, manufacture, and commercialization of Ruzasvir, an NS5A inhibitor, for the treatment of HCV. Atea Pharmaceuticals, Inc. was incorporated in 2012 and is headquartered in Boston, Massachusetts.

Assembly Biosciences, Inc., a biotechnology company, develops therapeutic candidates for the treatment of viral diseases. It develops ABI-5366, a long-acting herpes simplex virus (HSV) helicase-primase inhibitor that is in Phase 1a/1b clinical trial to treat recurrent genital herpes; ABI-1179, which is in Phase 1a/1b clinical trial for the treatment of recurrent genital herpes; and ABI-6250, a small molecule orally bioavailable hepatitis delta virus entry inhibitor that is in Phase 1a clinical trial. The company also develops ABI-4334, a next-generation capsid assembly modulator, which is in Phase 1b clinical trial for the treatment of hepatitis B virus (HBV). In addition, it develops an oral non-nucleoside polymerase inhibitor targeting transplant-related herpesviruses; and a small molecule interferon-a receptor agonist targeting HBV and HDV. The company has collaboration agreements with Gilead Sciences, Inc. and BeiGene, Ltd. The company was formerly known as Ventrus Biosciences, Inc. and changed its name to Assembly Biosciences, Inc. in June 2014. Assembly Biosciences, Inc. was incorporated in 2005 and is headquartered in South San Francisco, California.

Cocrystal Pharma, Inc., a biotechnology company, focuses on the discovery and development of antiviral therapeutic treatments for serious and/or chronic viral diseases. It employs structure-based technologies to create antiviral drugs primarily to treat hepatitis C virus (HCV), influenza virus, coronavirus, norovirus, and respiratory virus infections. The company develops CC-31244, a HCV non-nucleoside polymerase inhibitor that has completed Phase II a clinical trial to treat HCV infection; and CC-42344, a PB2 inhibitor that has completed Phase I clinical trial for treating influenza infection. It is also involved in identifying and developing non-nucleoside polymerase inhibitors for norovirus infections. Cocrystal Pharma, Inc. has a license and research collaboration agreement with Merck Sharp & Dohme Corp. to discover and develop proprietary influenza A/B antiviral agents; and a license agreement with Kansas State University Research Foundation to develop antiviral compounds for the treatment of norovirus and coronavirus infections. The company is headquartered in Bothell, Washington.

Hepion Pharmaceuticals, Inc., a biopharmaceutical company, focuses on the development of drug therapy treatment for chronic liver diseases in the United States. It develops Rencofilstat, a cyclophilin inhibitor is in Phase 2b clinical trial to target multiple pathologic pathways involved in the progression of liver disease and treat non-alcoholic steatohepatitis (NASH), as well as preclinical studies of Rencofilstat shows reduction in liver fibrosis, liver inflammation, liver tumor burden, and titers of HBV, HCV, HDV, and HIV-1, and has demonstrated antiviral activities for hepatitis B, C, and D viruses through several mechanisms. The company was formerly known as ContraVir Pharmaceuticals, Inc. and changed its name to Hepion Pharmaceuticals, Inc. in July 2019. Hepion Pharmaceuticals, Inc. was incorporated in 2013 and is headquartered in Edison, New Jersey.