Intra-Cellular Therapies, Inc., a biopharmaceutical company, focuses on the discovery, clinical development, and commercialization of small molecule drugs that address medical needs primarily in neuropsychiatric and neurological disorders by targeting intracellular signaling mechanisms in the central nervous system (CNS) in the United States. The company offers CAPLYTA for the treatment of schizophrenia and bipolar depression in adults. It is also involved in developing Lumateperone, which is in Phase 3 clinical trial for the treatment of various depressive disorders, as well as additional neuropsychiatric indications. In addition, the company is developing Lenrispodun (ITI-214) for the treatment of Parkinson's disease, CNS, and other disorders; ITI-1284 for the treatment of neuropsychiatric disorders and behavioral disturbances in dementia; and ITI-333 for substance use disorders, pain, and psychiatric comorbidities, including depression, anxiety, and sleep disorders. Intra-Cellular Therapies, Inc. was founded in 2002 and is headquartered in New York, New York.

Neurocrine Biosciences, Inc. discovers, develops, and markets pharmaceuticals for neurological, neuroendocrine, and neuropsychiatric disorders in the United States and internationally. The company's products include INGREZZA for tardive dyskinesia and chorea associated with Huntington's disease; ALKINDI for adrenal insufficiency; Efmody capsules for classic congenital adrenal hyperplasia; Orilissa tablets for endometriosis; and Oriahnn capsules to treat uterine fibroids. Its product candidates in clinical development include valbenazine to treat dyskinetic cerebral palsy in pediatrics and adults; NBI-921352 to treat developmental and epileptic encephalopathy syndrome in pediatrics and adults; NBI-827104 to treat epileptic encephalopathy with continuous spike-and-wave during sleep; NBI-1076986 to treat movement disorders; crinecerfront to treat congenital adrenal hyperplasia in adults and children; EFMODY to treat congenital adrenal hyperplasia and adrenal insufficiency in adults; valbenazine for the adjunctive treatment of schizophrenia; NBI-1065845 for the treatment of inadequate response to treatment in major depressive disorder; luvadaxistat to treat cognitive impairment related to schizophrenia; NBI-1117568 for the treatment of schizophrenia; NBI-1070770 to treat major depressive disorder; NBI-1117570 for the treatment of symptoms of psychosis and cognition in neurological and neuropsychiatric conditions; and NBI-1117569, NBI-1117567, and NBI-1065890 to treat CNS indications. The company also has license and collaboration agreements with Heptares Therapeutics Limited; Takeda Pharmaceutical Company Limited; Idorsia Pharmaceuticals Ltd; Xenon Pharmaceuticals Inc.; Voyager Therapeutics, Inc.; BIAL – Portela & Ca, S.A.; Mitsubishi Tanabe Pharma Corporation; and AbbVie Inc. The company was incorporated in 1992 and is headquartered in San Diego, California.

Praxis Precision Medicines, Inc., a clinical-stage biopharmaceutical company, engages in the development of therapies for central nervous system disorders characterized by neuronal excitation-inhibition imbalance. It is developing ulixacaltamide, a small molecule inhibitor of T-type calcium channels that is in Phase III clinical trial for the treatment of essential tremor; PRAX-562 for the treatment of pediatric patients with developmental and epileptic encephalopathies (DEE); and PRAX-628 to treat focal epilepsy. The company also develops PRAX-222 for the treatment of pediatric patients with early-onset SCN2A-DEE; PRAX-020 to treat KCNT1 related epilepsies; PRAX-080 for the treatment of PCDH19; and PRAX-090 and PRAX-100 for SYNGAP1 and SCN2A-LoF. It has a license agreement with RogCon Inc.; a research collaboration and license agreement with Ionis Pharmaceuticals, Inc.; a strategic collaboration and license agreement with UCB Biopharma SRL; and collaboration with The Florey Institute to develop three novel ASOs. The company was incorporated in 2015 and is based in Boston, Massachusetts.

Sage Therapeutics, Inc., a biopharmaceutical company, develops and commercializes brain health medicines. Its product candidates include ZULRESSO, a CIV injection for the treatment of postpartum depression (PPD) in adults; and ZURZUVAE, a neuroactive steroid, a positive allosteric modulator of GABAA receptors, targeting both synaptic and extrasynaptic GABAA receptors, for the treatment of postpartum depression. Its product pipeline also comprises SAGE-324, a compound that is in Phase II clinical trial to treat essential tremors, as well as has completed Phase I clinical trial for epilepsy and Parkinson's diseases; and SAGE-718, an oxysterol-based positive allosteric modulator of the NMDA receptor, which is in Phase II clinical trial for the treatment of depression, Huntington's disease, Parkinson's diseases, Alzheimer's disease, attention deficit hyperactivity disorder, schizophrenia, and neuropathic pain. The company has a strategic collaboration with Shionogi & Co., Ltd. for the development and commercialization of zuranolone in Japan, Taiwan, and South Korea; and a collaboration and license agreement with Biogen MA Inc. to jointly develop and commercialize SAGE-217 and SAGE-324 products. The company was formerly known as Sterogen Biopharma, Inc. and changed its name to Sage Therapeutics, Inc. in September 2011. Sage Therapeutics, Inc. was incorporated in 2010 and is headquartered in Cambridge, Massachusetts.

Neumora Therapeutics, Inc., a clinical-stage biopharmaceutical company, engages in developing therapeutic treatments for brain diseases, neuropsychiatric disorders, and neurodegenerative diseases. The company develops navacaprant (NMRA-140), a novel once-daily oral kappa opioid receptor antagonist, which is in phase 3 clinical trials for the treatment of major depressive disorder. It also develops NMRA-511 that is in phase 1 clinical trials in patients with agitation associated with dementia due to Alzheimer's disease; and NMRA-266, which is in the phase 1 clinical trial for the treatment of schizophrenia and other neuropsychiatric disorders. In addition, its preclinical phase product includes NMRA-NMDA for the treatment of schizophrenia; NMRA-CK1d, a CK1d inhibitor program for the treatment of amyotrophic lateral sclerosis; NMRA-NLRP3 for the treatment of certain neurodegenerative conditions; and NMRA-GCase for the treatment of Parkinson's disease. The company was formerly known as RBNC Therapeutics, Inc. and changed its name to Neumora Therapeutics, Inc. in October 2021. Neumora Therapeutics, Inc. was incorporated in 2019 and is headquartered in Watertown, Massachusetts.

CervoMed Inc., a biotechnology company, engages in the development and commercialization of treatments for age-related neurologic disorders. Its lead drug candidate is neflamapimod, an orally administered small molecule brain penetrant for the treatment of dementia with Lewy bodies (DLB), Alzheimer's diseases, frontotemporal dementia, and ischemic stroke recovery. The company also develops EIP200 for central nervous system which is in preclinical trials. CervoMed Inc. was founded in 2010 and is headquartered in Boston, Massachusetts.

Reviva Pharmaceuticals Holdings, Inc., a biopharmaceutical company, discovers, develops, and commercializes next-generation therapeutics for diseases targeting unmet medical needs in the areas of central nervous system, respiratory, inflammatory, and cardiometabolic diseases. The company's lead product candidate comprises brilaroxazine (RP5063) for the treatment of various neuropsychiatric indications, including schizophrenia, bipolar disorder, major depressive disorder, attention–deficit/hyperactivity disorder, behavioral and psychotic symptoms of dementia and Alzheimer's disease, and Parkinson's disease psychosis; in clinical development respiratory indications, such as pulmonary arterial hypertension and idiopathic pulmonary fibrosis; and in preclinical development for the treatment of psoriasis. It is also developing RP1208 for the treatment of depression and obesity. Reviva Pharmaceuticals Holdings, Inc. was founded in 2018 and is headquartered in Cupertino, California.

Relmada Therapeutics, Inc., a clinical-stage biotechnology company, focuses on developing various products for the treatment of central nervous system diseases (CNS) and other disorders in the United States. Its lead product candidate is Esmethadone (d-methadone, dextromethadone, and REL-1017), a N-methyl-D-aspartate receptor antagonist which is in phase 3 clinical trial for the adjunctive or monotherapy treatment of major depressive disorder. The company is headquartered in Coral Gables, Florida.