Vaxcyte, Inc., a clinical-stage biotechnology vaccine company, develops novel protein vaccines to prevent or treat bacterial infectious diseases. Its lead vaccine candidate is VAX-24, a 24-valent investigational pneumococcal conjugate vaccine for the prevention of invasive pneumococcal disease. The company also develops VAX-31 to protect against emerging strains and to help address antibiotic resistance; VAX-A1, a novel conjugate vaccine candidate to prevent disease caused by Group A Streptococcus; VAX-PG, a novel protein vaccine candidate targeting keystone pathogen responsible for periodontitis; and VAX-GI to prevent Shigella, a bacterial illness. The company was formerly known as SutroVax, Inc. and changed its name to Vaxcyte, Inc. in May 2020. Vaxcyte, Inc. was incorporated in 2013 and is headquartered in San Carlos, 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.

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.

Inovio Pharmaceuticals, Inc., a biotechnology company, focuses on the discovery, development, and commercialization of DNA medicines to treat and protect people from diseases associated with human papillomavirus (HPV), cancer, and infectious diseases. Its DNA medicines platform uses precisely designed SynCon that identify and optimize the DNA sequence of the target antigen, as well as CELLECTRA smart devices technology that facilitates delivery of the DNA plasmids. Its products in pipeline include VGX-3100 for the treatment of HPV-related cervical high-grade dysplasia; INO-3107 for HPV-related recurrent respiratory papillomatosis and is under Phase 1/2 trial; INO-3112 for the treatment of HPV-related Oropharyngeal Squamous Cell Carcinoma and is under Phase 2 trial; INO-5401 for the treatment of glioblastoma multiforme and is under Phase 2 trial; INO-4201 for Ebola Virus Disease and is under Phase 1b trial; INO-4800 for COVID-19 and is under Phase 3 trial; and INO-6160 for the treatment of human immunodeficiency virus and is under Phase 1 trial. Its partners and collaborators include Advaccine Biopharmaceuticals Suzhou Co, ApolloBio Corporation, AstraZeneca, The Bill & Melinda Gates Foundation, Coalition for Epidemic Preparedness Innovations, Defense Advanced Research Projects Agency, The U.S. Department of Defense, HIV Vaccines Trial Network, International Vaccine Institute, Kaneka Eurogentec, National Cancer Institute, National Institutes of Health, National Institute of Allergy and Infectious Diseases, the Parker Institute for Cancer Immunotherapy, Plumbline Life Sciences, Regeneron Pharmaceuticals, Richter-Helm BioLogics, Thermo Fisher Scientific, the University of Pennsylvania, the Walter Reed Army Institute of Research, and The Wistar Institute. The company was incorporated in 1983 and is headquartered in Plymouth Meeting, Pennsylvania.

PDS Biotechnology Corporation, a clinical-stage biopharmaceutical company, developing a pipeline of targeted cancer immunotherapies in the United States. The company's lead product candidate is PDS0101 (HPV16), which is in Phase II clinical trial provides a first line treatment for the recurrent/metastatic head and neck cancer, and human papillomavirus associated malignancies. It also develops various product candidates, which are in preclinical trials, including PDS0102, an investigational immunotherapy utilizing tumor-associated and immunologically active T cell receptor gamma alternate reading framed protein (TARP) for treating prostate and breast cancers; and PDS0103 for ovarian, colorectal, lung, and breast cancers. In addition, the company is developing PDS01ADC, a novel investigational Interleukin 12 fused antibody-drug conjugate that enhances the proliferation, potency, and longevity of T cells in the tumor microenvironment; and PDS0104, a novel investigational Tyrosinase-related Protein 2 targeted immunotherapy that stimulates a potent targeted T cell attack against melanoma. Further, the company provides PDS0202, a novel investigational influenza vaccine that generates broad and robust antibody and T cell responses that provide protection against continually evolving strains of seasonal flu and potentially emerging pandemic flu. It has a license and collaboration agreements with National Institutes of Health, Merck Eprova AG, The U.S. Department of Health and Human Services, and MSD International GmbH. The company was founded in 2005 and is based in Princeton, New Jersey.

Barinthus Biotherapeutics plc, a clinical-stage biopharmaceutical company, engages in development of novel T cell immunotherapeutic candidates designed to guide the immune system to overcome chronic infectious diseases, autoimmunity, and cancer. The company's development pipeline includes VTP-300, an immunotherapeutic candidate under phase 2 studies as a potential component of a functional cure for chronic hepatitis B virus (HBV) infection; VTP-200, a non-surgical product candidate under phase 2 studies for treating persistent high-risk human papillomavirus (HPV) infection; VTP-1000, an autoimmune preclinical candidate designed to treat patients with celiac disease; VTP-1100 product candidate to target HPV16+ cancers; and VTP-850/850, a second-generation immunotherapeutic candidate under phase 2 studies to treat recurrent prostate cancer. It is also involved in the development of partnered candidates, such as AB-729-202, which is under phase 2a studies for the treatment of patients with chronic HBV infection; VTP-600, an immunotherapy candidate under phase 1 studies as a potential treatment for NSCLC in combination with standard of care treatment, chemotherapy, and pembrolizumab; VTP-500, a prophylactic vaccine product candidate under phase 1 studies to prevent infection and subsequent disease caused by the MERS coronavirus; and VTP-400, a prophylactic vaccine candidate under phase 1 studies to prevent shingles in adults aged 50 years and older. In addition, the company offers Vaxzevria (formerly VTP-900 and AZD1222), a prophylactic vaccine for the prevention of COVID-19 Infection. Further, it has license, research and development, and collaboration agreements with OUI, NIH, IMC, CanSino, CRUK; VOLT; and Arbutus. The company was formerly known as Vaccitech plc and changed its name to Barinthus Biotherapeutics plc in November 2023. Barinthus Biotherapeutics plc was founded in 2016 and is headquartered in Didcot, the United Kingdom.

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.

Vaccinex, Inc., a clinical-stage biotechnology company, engages in the discovery and development of targeted biotherapeutics to treat cancer, neurodegenerative diseases, and autoimmune disorders. The company's lead drug candidate, pepinemab, a humanized monoclonal antibody that binds and blocks the activity of SEMA4D. It is developing Pepinemab, which is in phase 2 study for treatment of Alzheimer's disease and has completed phase 2 study for treatment of Huntington's disease; Pepinemab in combination with Pembrolizumab in phase 2 study for head and neck cancer, Avelumab in phase 2 study for pancreatic cancer, and completed phase 2 study with Avelumab for non-small cell lung cancer; and Pepinemab in combination with Nivolumab completed phase 2 study for melanoma, and trastuzumab and DC vaccine in phase 2 study for breast cancer. The company has also developed ActivMAb, an antibody drug discovery platform based on a novel method for complex targets, such as multi-pass membrane receptors or large and diverse libraries of full-length human monoclonal antibodies on the surface of pox viruses. It has collaborations with Merck Sharp & Dohme; Ares Trading S.A.; The Children's Hospital of Philadelphia; Emory University; Huntington Study Group; H. Lee Moffitt Cancer Center and Research Institute, Inc; Catalent Pharma Solutions, LLC; Surface Oncology, Inc.; and Pharmaceutical and Biotech Co. The company was incorporated in 2001 and is headquartered in Rochester, New York.