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.

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.

Atai Life Sciences N.V., a clinical-stage biopharmaceutical company, develops and invests in various therapeutics to treat depression, anxiety, addiction, and other mental health disorders. Its product candidates include COMP360, a proprietary psilocybin which is in Phase 3 program; BPL-003, an intranasal formulation that is in Phase 2a and 2b clinical studies; TRD; VLS-01, an transmucosal film in Phase 1b clinical studies; and ELE-101, a serotonergic psychedelic that is in Phase 1/2a study, for the treatment of treatment resistant depression. The company also develop IBX-210, an intravenous formulation of ibogaine, and DMX-1002, an oral formulation of ibogaine indicated for the treatment of opioid use disorder; EMP-01, an oral formulation of an R-MDMA derivative being developed for the treatment of post-traumatic stress disorder; and EGX-A and EGX-B, psychedelic-like with novel, non-tryptamine structures with differentiated 5-HT receptor pharmacology. In addition, it offers RL-007, an orally bioavailable compound, which is a pro-cognitive neuromodulator for cognitive impairment associated with schizophrenia; and GRX-917, a deuterated etifoxine for the treatment of generalize anxiety disorder. Further, the company develops PCN-101, a subcutaneous formulation of R-ketamine, as a therapy for psychiatric indications initially focused on TRD; KUR-101, a formulation of deuterated mitragynine for the treatment of OUD; and RLS-01, indicated for treatment resistant depression. ATAI Life Sciences N.V. was founded in 2018 and is headquartered in Berlin, Germany with offices in New York and London.

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.

NRx Pharmaceuticals, Inc., a clinical-stage bio-pharmaceutical company, develops novel therapeutics for the treatment of central nervous system disorders, including suicidal depression, post-traumatic stress disorder, and chronic pain. Its products include NRX-101 (D-cycloserine/Lurasidone), an oral, fixed dosed combination of D-cycloserine and lurasidone that earned food and drug administration-designated breakthrough therapy for suicidal treatment-resistant bipolar depression; and NRX-100 (ketamine), which has been awarded FDA fast track designation for the treatment of severe bipolar depression with acute suicidal ideation and behavior. The company has a partnership with Alvogen Inc. and Lotus Pharmaceutical Company; development and manufacturing agreement with Nephron Pharmaceuticals, Inc. and Alcami; license agreement with Apkarian Technologies; development and license agreement with Glytech; license agreement with Sarah Herzog Memorial Hospital. The company was founded in 2015 and is based in Wilmington, Delaware.

Enveric Biosciences, Inc., a biotechnology company, engages in the development of small-molecule therapeutics for the treatment of anxiety, depression, and addiction disorders. Its lead product candidates are EB-002, an active metabolite of psilocybin, which is in preclinical development stage for the treatment of anxiety disorders; and EB-003 that is in preclinical development stage for the treatment mental health. The company also focuses on the development of cannabinoid conjugate molecules for the treatment of pain and cancer. Enveric Biosciences, Inc. is headquartered in Naples, Florida.

SciSparc Ltd., a clinical-stage pharmaceutical company, develops drugs based on cannabinoid therapies. Its drug development programs include SCI-110 for the treatment of Tourette syndrome and Alzheimer's disease and agitation; SCI-160 for the treatment of pain; SCI-210 for the treatment of autism spectrum disorder and status epilepticus; and CannAmide, an anti-inflammatory and chronic pain solution. The company has an agreement with Procaps to develop and commercially manufacture SCI-110 and CannAmide, a palmitoylethanolamide oral tablet in softgel capsule form. It also has an agreement with The Israeli Medical Center for Alzheimer's to conduct a phase IIa clinical trial to evaluate the safety, tolerability, and efficacy of SCI-110 in patients with Alzheimer's disease and agitation; and a collaboration with Clearmind Medicine Inc. The company was formerly known as Therapix Biosciences Ltd. and changed its name to SciSparc Ltd. in January 2021. SciSparc Ltd. was incorporated in 2004 and is headquartered in Tel Aviv-Yafo, Israel.

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.