Soleno Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on the development and commercialization of novel therapeutics for the treatment of rare diseases. Its lead candidate is Diazoxide Choline Extended-Release tablets, a once-daily oral tablet, which is in Phase III clinical trials for the treatment of Prader-Willi Syndrome. The company was formerly known as Capnia, Inc. and changed its name to Soleno Therapeutics, Inc. in May 2017. Soleno Therapeutics, Inc. was incorporated in 1999 and is based in Redwood City, California.

Travere Therapeutics, Inc., a biopharmaceutical company, identifies, develops, and delivers therapies to people living with rare kidney and metabolic diseases. Its products include FILSPARI (sparsentan), a once-daily, oral medication designed to target two critical pathways in the disease progression of IgA Nephropathy (endothelin 1 and angiotensin-II); and Thiola and Thiola EC (tiopronin tablets) for the treatment of cystinuria, a rare genetic cystine transport disorder that causes high cystine levels in the urine and the formation of recurring kidney stones. The company's clinical-stage programs consist of Sparsentan, a novel investigational product candidate, which has been granted Orphan Drug Designation for the treatment of focal segmental glomerulosclerosis in the U.S. and Europe; and Pegtibatinase (TVT-058), a novel investigational human enzyme replacement candidate being evaluated for the treatment of classical homocystinuria. It has a cooperative research and development agreement with National Institutes of Health's National Center for Advancing Translational Sciences and Alagille Syndrome Alliance for the identification of potential small molecule therapeutics for Alagille syndrome. The company was formerly known as Retrophin, Inc. and changed its name to Travere Therapeutics, Inc. in November 2020. Travere Therapeutics, Inc. was incorporated in 2008 and is headquartered in San Diego, California.

Nurix Therapeutics, Inc., a clinical stage biopharmaceutical company, focuses on the discovery, development, and commercialization of small molecule and cell therapies for the treatment of cancer, inflammatory conditions, and other diseases. The company develops NX-2127, an orally bioavailable Bruton's tyrosine kinase (BTK) degrader for the treatment of relapsed or refractory B-cell malignancies; NX-5948, an orally bioavailable BTK degrader for the treatment of relapsed or refractory B-cell malignancies and autoimmune diseases; and NX-1607, an orally bioavailable Casitas B-lineage lymphoma proto-oncogene-B (CBL-B) inhibitor for immuno-oncology indications. It is also developing NX-0479/GS-6791, a IRAK4 degrader for the treatment of rheumatoid arthritis and other inflammatory diseases. The company has a strategic collaboration agreement with Gilead Sciences, Inc., Sanofi S.A., and Seagen Inc. co-development and co-commercialization for multiple drug candidates. The company was formerly known as Nurix Inc. and changed its name to Nurix Therapeutics, Inc. in October 2018. Nurix Therapeutics, Inc. was incorporated in 2009 and is headquartered in San Francisco, California.

aTyr Pharma, Inc., a biotherapeutics company, engages in the discovery and development of medicines based on novel immunological pathways in the United States. Its lead therapeutic candidate is efzofitimod, a selective modulator of NRP2 that is in Phase III clinical trial for pulmonary sarcoidosis; and in Phase 1b/2a clinical trial for treatment of other interstitial lung diseases (ILDs), such as chronic hypersensitivity pneumonitis and connective tissue disease related ILD. The company is developing ATYR0101, a fusion protein derived from a domain of aspartyl-tRNA synthetase that is in preclinical development for the treatment of fibrosis; and ATYR0750, a domain of alanyl-tRNA synthetase for the treatment of liver disorders. It has collaboration and license agreement with Kyorin Pharmaceutical Co., Ltd. for the development and commercialization of efzofitimod for ILDs in Japan. aTyr Pharma, Inc. was incorporated in 2005 and is headquartered in San Diego, California.

Cidara Therapeutics, Inc., a biotechnology company, focuses on developing targeted therapies for patients facing cancers and other serious diseases. The company's product includes rezafungin acetate, a novel molecule in the echinocandin class of antifungals for the treatment and prevention of invasive fungal infections, including candidemia and invasive candidiasis, which are fungal infections associated with high mortality rates. It also develops its Cloudbreak platform that enables development of novel drug-Fc conjugates, that includes CD388, a potent antiviral designed to deliver universal prevention and treatment of seasonal and pandemic influenza, which is in Phase 1 and Phase 2a clinical trials. The company was formerly known as K2 Therapeutics, Inc. and changed its name to Cidara Therapeutics, Inc. in July 2014. The company was incorporated in 2012 and is based in San Diego, California.

Rezolute, Inc., a late-stage rare disease company, focused on improving outcomes for individuals with hypoglycemia caused by hyperinsulinism in the United States. The company's lead product candidate is ersodetug, a human monoclonal antibody that is in Phase 3 clinical trial for the treatment of congenital hyperinsulinism, an ultra-rare pediatric genetic disorder. It also developing RZ402, an oral plasma kallikrein inhibitor, which is in Phase 2 clinical trial for the chronic treatment of diabetic macular edema. The company was formerly known as AntriaBio, Inc. and changed its name to Rezolute, Inc. in December 2017. Rezolute, Inc. was incorporated in 2010 and is headquartered in Redwood City, California.

Alumis Inc., a clinical stage biopharmaceutical company, focuses on the development and commercialization of medicines for autoimmune disorders. It develops ESK-001, an allosteric tyrosine kinase 2 (TYK2) inhibitor for the treatment of plaque psoriasis, systemic lupus erythematosus, and non-infectious uveitis; and A-005, a central nervous system-penetrant allosteric TYK2 inhibitor for neuroinflammatory and neurodegenerative diseases. The company was formerly known as Esker Therapeutics, Inc. and changed its name to Alumis Inc. in January 2022. The company was incorporated in 2021 and is headquartered in South San Francisco, California.

Talphera, Inc., a specialty pharmaceutical company, focuses on the development and commercialization of therapies for use in medically supervised settings. Its lead product candidate is Niyad, a lyophilized formulation of nafamostat, which is under an investigational device exemption as an anticoagulant for the extracorporeal circuit. It is also developing LTX-608, an anti-inflammatory and antiviral potential for the treatment of multiple conditions, including disseminated intravascular coagulation (DIC), acute respiratory distress syndrome (ARDS), and acute pancreatitis; Fedsyra, a pre-filled ephedrine syringe; and PFS-02, a pre-filled phenylephrine syringe. The company was formerly known as AcelRx Pharmaceuticals, Inc. and changed its name to Talphera, Inc. in January 2024. The company was incorporated in 2005 and is headquartered in San Mateo, California.