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.

Axsome Therapeutics, Inc., a biopharmaceutical company, engages in the development of novel therapies for central nervous system (CNS) disorders in the United States. The company's commercial product portfolio includes Auvelity (dextromethorphan-bupropion), a N-methyl-D-aspartate receptor antagonist with multimodal activity indicated for the treatment of major depressive disorder; and Sunosi (solriamfetol), a medication indicated to the treatment of excessive daytime sleepiness in patients with narcolepsy or obstructive sleep apnea. It is also developing AXS-05, which is in Phase III clinical trial to treat Alzheimer's disease agitation, as well as that has completed phase II clinical trial for the treatment of smoking cessation; AXS-07, an investigational medicine that has completed Phase III trials for the acute treatment of migraine; AXS-12, an investigational medicine, which is in Phase III trial to treat narcolepsy; AXS-14, a selective and potent norepinephrine reuptake inhibitor that has completed Phase III trial for the treatment of fibromyalgia and other conditions; and solriamfetol, a dual-acting dopamine and norepinephrine reuptake inhibitor, which has completed a Phase 2 trial for treating attention-deficit/hyperactivity disorder, and is in phase 2 major depressive, binge eating, and shift work disorder. Axsome Therapeutics, Inc. has a research collaboration agreement with Duke University for evaluating AXS-05 in smoking cessation. The company was incorporated in 2012 and is based in New York, New York.

Anavex Life Sciences Corp., a clinical stage biopharmaceutical company, engages in the development of therapeutics for the treatment of central nervous system diseases. Its lead product candidate is ANAVEX 2-73 for the treatment of Alzheimer's disease and Parkinson's disease, as well as other central nervous system diseases, including rare diseases, such as Rett syndrome, a rare severe neurological monogenic disorder; and infantile spasms, Fragile X syndrome, and Angelman syndrome. The company's drug candidate also comprises ANAVEX 3-71, which is in clinical trial for the treatment of schizophrenia, frontotemporal dementia, and Alzheimer's disease. Its preclinical drug candidates include ANAVEX 1-41 for the treatment of depression, stroke, and neurogenerative disease; ANAVEX 1066 for the potential treatment of neuropathic and visceral pain; and ANAVEX 1037 to treat prostate and pancreatic cancer. The company was incorporated in 2004 and is headquartered in New York, New York.

Bright Minds Biosciences Inc., a biotechnology company, develops therapeutics to improve the lives of patients with severe and life-altering diseases in the United States. Its portfolio of selective 5-HT receptor agonists includes 5-HT2C, 5-HT2A, and 5-HT2C/A for the treatment of epilepsy, pain, and neuropsychiatry; and BMB-101 which completes phase 1 trial for undisclosed seizure disorder. The company also developing BMB-202 for the treatment of depression, anxiety, and PTSD; and BMB-201 for the treatment of anxiety. It has collaboration with National Institutes of Health for the treatment of epilepsy; University of Texas Medical Branch to treat impulse control disorders, such as binge eating; and Medical College of Wisconsin. Bright Minds Biosciences Inc. was founded in 2017 and is headquartered in New York, New York.

Cingulate Inc., a biopharmaceutical company, focuses on the development of pharmaceutical products for the treatment of attention deficit/hyperactivity disorder and anxiety in the United States. The company's stimulant medications are CTx-1301 (dexmethylphenidate), which is in phase 3 clinical trial, as well as CTx-1302 (dextroamphetamine), which is in investigational new drug application development for the treatment of attention deficit/hyperactivity disorder intended for children, adolescents, and adults. It also focuses on developing CTx-2103 that is in a formulation stage for the treatment of anxiety. The company was founded in 2012 and is headquartered in Kansas City, Kansas.

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.

Protagenic Therapeutics, Inc., a biopharmaceutical company, engages in the discovery and development of therapeutics to treat stress-related neuropsychiatric and mood disorders. Its lead compound comprises PT00114, a synthetic form of teneurin carboxy-terminal associated peptide, an endogenous brain signaling peptide that can dampen overactive stress responses. Protagenic Therapeutics, Inc. is headquartered in New York, New York.

Seelos Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on the development and commercialization of therapeutics for the treatment of central nervous system and other disorders. The company's lead programs are SLS-002, an intranasal racemic ketamine for the treatment of acute suicidal ideation and behavior in patients with major depressive disorders; SLS-004, an gene therapy targeting gene and alpha synuclein; SLS-005, a protein stabilizer for the treatment of amyotrophic lateral sclerosis and Sanfilippo syndrome; SLS-007, a peptidic inhibitor for NACore Parkinson disease; and SLS-009, a protein targeted autophagy for Alzheimer disease. Seelos Therapeutics, Inc. was founded in 2016 and is headquartered in New York, New York. On November 16, 2024, Seelos Therapeutics, Inc. filed a voluntary petition for reorganization under Chapter 11 in the U.S. Bankruptcy Court for the Southern District of New York.