Denali Therapeutics Inc., a biopharmaceutical company, develops a portfolio of product candidates engineered to cross the blood-brain barrier for neurodegenerative diseases and lysosomal storage diseases in the United States. The company's transport vehicle (TV)-enabled programs include DNL310 ETV, an IDS enzyme replacement therapy program for MPS II; TAK-594/DNL593 which is in Phase 1/II for frontotemporal dementia-granulin; DNL126 program for MPS IIIA; and DNL622 for MPS I, as well as other preclinical programs that target amyloid beta and HER2. Its brain-penetrant small molecule programs comprise BIIB122/DNL151 LRRK2 inhibitor program for Parkinson's disease; SAR443820/DNL788 RIPK1 inhibitor program for CNS disease; DNL343 eIF2B Activator program for amyotrophic lateral sclerosis; and SAR443122/DNL758 RIPK1 inhibitor program for peripheral inflammatory diseases. It also provides early stage program include TAK-594/DNL593 program for FTD-GRN; DNL126 program for MPS IIIA, a Sanfilippo Syndrome A; DNL622 for MPS I which is Hurler syndrome; Antibody Transport Vehicle Amyloid beta program; Oligonucleotide Transport Vehicle platform, a novel class of biotherapeutics to address the root cause of diseases through modulation of gene expression; and other TV-enabled discovery programs. The company has collaboration agreements with Biogen MA Inc. and Biogen International GmbH; Genzyme Corporation; Takeda Pharmaceutical Company Limited; F-star Gamma Limited, F-star Biotechnologische Forschungs-und Entwicklungsges m.b.H, and F-star Biotechnology Limited; and Genentech, Inc. The company was formerly known as SPR Pharma Inc. and changed its name to Denali Therapeutics Inc. in March 2015. Denali Therapeutics Inc. was incorporated in 2013 and is headquartered in South San Francisco, California.

Amylyx Pharmaceuticals, Inc., a commercial-stage biotechnology company, engages in the discovery and development of treatment for amyotrophic lateral sclerosis (ALS) and neurodegenerative diseases. The company's products include RELYVRIO, a dual UPR-Bax apoptosis inhibitor composed of sodium phenylbutyrate and taurursodiol for the treatment of ALS in adults in the United States and marketed as ALBRIOZA for the treatment of ALS in Canada. It is also developing AMX0114 for other neurodegenerative diseases. Amylyx Pharmaceuticals, Inc. was founded in 2013 and is headquartered in Cambridge, Massachusetts.

Vigil Neuroscience, Inc., a clinical-stage biotechnology company, focuses on developing treatments for rare and common neurodegenerative diseases by restoring the vigilance of microglia, the sentinel immune cells of the brain. Its lead candidate is VGL101(Iluzanebart), a human monoclonal antibody agonist targeting human triggering receptor expressed on myeloid cells 2 and is in a Phase 2 trial in patients with adult-onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP), a rare and fatal neurodegenerative disease. The company is also developing VG-3927, an orally-available small molecule TREM2 agonist to treat common neurodegenerative diseases associated with microglial dysfunction, with an initial focus on Alzheimer's disease in genetically defined subpopulations, which is being evaluated in a Phase 1 clinical trial. It has license agreement with Amgen Inc. to commercially develop, manufacture, use, distribute, and sell therapeutic products containing compounds that bind to TREM2. The company was incorporated in 2020 and is headquartered in Watertown, Massachusetts.

Neurogene Inc., a biotechnology company, develops genetic medicines for rare neurological diseases. The company's product candidates include NGN-401 which is packaged in an adeno-associated virus 9 that is in Phase 1/2 clinical trial for the treatment of Rett syndrome; and NGN-101, a conventional gene therapy candidate that is in Phase 1/2 clinical trial to treat CLN5 Batten disease. It has a license agreement with The University of North Carolina, the University of Edinburgh, Virovek, Inc., and Sigma-Aldrich Co. LLC. The company is headquartered in New York, New York.

Alector, Inc., a clinical stage biopharmaceutical company, develops therapies for the treatment of neurodegeneration diseases. Its products include AL001, an immune activity in the brain with genetic links to multiple neurodegenerative disorders, which is in Phase III clinical trial for the treatment of frontotemporal dementia, Alzheimer's, Parkinson's, and amyotrophic lateral sclerosis diseases; and AL101 that is in Phase I clinical trial for the treatment of neurodegenerative diseases, including Alzheimer's and Parkinson's diseases. The company also offers AL002, a product candidate that is in Phase II clinical trial for the treatment of Alzheimer's disease. Alector, Inc. has a collaboration agreement with Adimab, LLC for the research and development of antibodies; and a strategic collaboration agreement with GlaxoSmithKline plc for the development and commercialization of monoclonal antibodies, such as AL001 and AL101 to treat neurodegenerative diseases. The company was founded in 2013 and is headquartered in South San Francisco, California.

Alzamend Neuro, Inc., a clinical-stage biopharmaceutical company, focuses on developing various products for the treatment of neurodegenerative and psychiatric disorders. Its pipeline includes AL001, which delivers a therapeutic combination of lithium, proline, and salicylate for the treatment of Alzheimer's, bi-polar disorder, post-traumatic stress disorder, major depressive disorder, other neurodegenerative diseases, and psychiatric disorders; and ALZN002 stage, which uses a method using a mutant-peptide sensitized cell as a cell-based therapeutic vaccine to restore the ability of a patient's immunological system to combat Alzheimer's disease. The company has partnership agreement with Massachusetts General Hospital for the Phase II clinical trial of AL001. Alzamend Neuro, Inc. was incorporated in 2016 and is headquartered in Atlanta, Georgia.

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.

Vaxxinity, Inc., a biotechnology company, focuses on developing product candidates for human use in the fields of neurology, cardiovascular diseases, and coronaviruses in the United States. Its product pipeline comprises UB-311, which is in phase 2 clinical trial that targets toxic forms of aggregated amyloid-b in the brain to fight alzheimer's disease; UB-312, which is in phase 1 clinical trial that targets toxic forms of aggregated a-synuclein in the brain to fight parkinson's disease and other synucleinopathies, such as Lewy body dementia and multiple system atrophy; and VXX-301, which is in preclinical trial, an anti-tau product candidate for various neurodegenerative conditions, including alzheimer's disease, traumatic brain injury, and chronic traumatic encephalopathy. It also develops VXX-401, which is phase 1 clinical trial that targets proprotein convertase subtilisin/kexin type 9 serine protease to lower low-density lipoprotein cholesterol and reduce the risk of cardiac events; UB-313 that targets calcitonin gene-related peptide to fight migraines; and UB-612, neutralizes the SARS-CoV-2 virus and is in phase 3 clinical trial. The company was incorporated in 2021 and is headquartered in Merritt Island, Florida.