AnaptysBio, Inc., a clinical-stage biotechnology company, focuses in delivering immunology therapeutics. Its products include Rosnilimab, an IgG1 antibody that targets PD-1+ T cells, resulting in their agonism or depletion, broadly impacting pathogenic drivers of autoimmune and inflammatory diseases; and ANB032, a non-depleting antibody that binds to the BTLA checkpoint receptor and inhibits activated T cell proliferation; ANB033, a novel anti-CD122 antagonist antibody that targets the shared common beta subunit of the receptors for IL-15 and IL-2; ANB101, a BDCA2 modulator antibody that specifically targets plasmacytoid dendritic cells (pDCs); and Imsidolimab, an antibody that inhibits the interleukin-36 receptor, which is in the Phase 3 development for the treatment of generalized pustular psoriasis. The company also focuses on developing various antibody programs that are advanced to preclinical and clinical milestones under its collaborations. It has a collaboration and license agreement with GlaxoSmithKline, Inc. The company was formerly known as Anaptys Biosciences, Inc. and changed its name to AnaptysBio, Inc. in July 2006. AnaptysBio, Inc. was incorporated in 2005 and is based in San Diego, 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.

RAPT Therapeutics, Inc., a clinical-stage immunology-based biopharmaceutical company, focuses on discovery, development, and commercialization of oral small molecule therapies for patients with unmet needs in oncology and inflammatory diseases in the United States. The company's lead inflammation drug candidate is zelnecirnon (RPT193), a C-C motif chemokine receptor 4 (CCR4) antagonist that selectively inhibit the migration of type 2 T helper cells into inflamed tissues. Its lead oncology drug candidate is tivumecirnon (FLX475), an oral small molecule CCR4 antagonist that is in the Phase 1/2 clinical trial to investigate as a monotherapy and in combination with pembrolizumab in patients with advanced cancer. The company was formerly known as FLX Bio, Inc. and changed its name to RAPT Therapeutics, Inc. in May 2019. RAPT Therapeutics, Inc. was incorporated in 2015 and is headquartered in South San Francisco, California.

Corvus Pharmaceuticals, Inc., a clinical stage biopharmaceutical company, focuses on the development and commercialization of immune modulator product candidates to treat solid cancers, T cell lymphomas, autoimmune, allergic, and infectious diseases. Its lead product candidate is soquelitinib (CPI-818), a selective covalent inhibitor of interleukin 2 inducible T cell kinase (ITK), which is in a multi-center Phase 1/1b clinical trial for the treatment of peripheral T cell lymphoma, solid tumors, and atopic dermatitis. The company is also developing ciforadenant (CPI-444), an oral small molecule antagonist of the A2A receptor that is in Phase 2 clinical trial for the treatment of metastatic renal cell cancer; and mupadolimab (CPI-006), a humanized monoclonal antibody, which is in Phase 1b clinical trial for the treatment of non-small cell lung cancer and head and neck cancer. In addition, it is developing CPI-182, an antibody designed to block inflammation and myeloid suppression that is in investigational new drug application-enabling studies, as well as CPI-935, an adenosine A2B receptor antagonist to prevent fibrosis. Corvus Pharmaceuticals, Inc. has a license afreemnt with Monash University to research, develop, and commercialize certain antibodies directed to CXCR2 for the treatment of human diseases; and Vernalis (R&D) Limited to develop, manufacture, and commercialize products containing certain adenosine receptor antagonists, including ciforadenant, as well as strategic collaboration with Angel Pharmaceuticals Co. Ltd. for the development and commercialization of mupadolimab. Corvus Pharmaceuticals, Inc. was incorporated in 2014 and is based in Burlingame, California.

Ventyx Biosciences, Inc., a clinical-stage biopharmaceutical company, develops small molecule product candidates to address a range of inflammatory diseases. The company's lead clinical product candidate is VTX958, a selective allosteric tyrosine kinase type 2 inhibitor for psoriasis, psoriatic arthritis, and Crohn's disease. It is also developing VTX002, a sphingosine 1 phosphate receptor modulator that is in Phase II clinical trials for the treatment of ulcerative colitis; and VTX2735, a peripheral-targeted NOD-like receptor protein 3 inflammasome inhibitor to treat patients with cryopyrin-associated periodic syndrome. In addition, the company develops VTX3232, a CNS-penetrant NLRP3 inhibitor. Ventyx Biosciences, Inc. was incorporated in 2018 and is based in San Diego, California.

CalciMedica, Inc., a clinical-stage biopharmaceutical company, focuses on developing therapeutics for illnesses caused by inflammatory and immunologic processes and direct cellular damage. The company's lead product candidate comprises Auxora, an intravenous formulated small molecule calcium release-activated (CRAC) channel inhibitors, which is in phase 2 clinical trials for the treatment of acute pancreatitis, asparaginase induced pancreatic toxicity, and acute kidney injury, as well as severe COVID-19 pneumonia. It also develops CM6336, an oral CRAC channel inhibitors for chronic inflammatory indications; and Auxora, for the treatment of acute ulcerative colitis and allergic asthma. The company is based in La Jolla, California.

Equillium, Inc., a clinical-stage biotechnology company, develops and sells products to treat severe autoimmune and inflammatory, or immuno-inflammatory disorders with unmet medical need. The company's lead product candidate is itolizumab (EQ001), a first-in-class monoclonal antibody that targets the immune checkpoint receptor CD6, which is in Phase III clinical trials for the treatment of acute graft-versus-host disease; completed Phase I clinical trial for the treatment of ulcerative colitis; and Phase I clinical trial for the treatment of lupus nephritis. It also develops EQ101 completed phase 1/2 for treatment of cutaneous T cell lymphoma and alopecia areata; and EQ302 to treat gastrointestinal indications. In addition, it serves dermatology, gastroenterology, rheumatology, hematology, transplant science, oncology, and pulmonology area. Equillium, Inc. has a research collaboration agreement with Vivtex Corporation to develop GI-targeted formulations for Bi-specific peptide therapy. The company was formerly known as Attenuate Biopharmaceuticals, Inc. and changed its name to Equillium, Inc. in May 2017. Equillium, Inc. was incorporated in 2017 and is headquartered in La Jolla, California.

BioAtla, Inc., a clinical-stage biopharmaceutical company, develops specific and selective antibody-based therapeutics for the treatment of solid tumor cancer. The company's lead clinical stage product candidates include mecbotamab vedotin (BA3011), a conditionally active biologic (CAB) antibody-drug conjugate (ADC), which is in Phase II clinical trial for treating undifferentiated pleomorphic sarcoma and non-small cell lung cancer (NSCLC); and ozuriftabmab vedotin (BA3021), a CAB ADC that is in Phase II clinical trial for the treatment of melanoma and squamous cell cancer of the head and neck. It is also developing Evalstotug (BA3071), a CAB anti-cytotoxic T-lymphocyte-associated antigen 4 antibody, which is in Phase II clinical trial for treating melanoma, carcinomas, and NSCLC; and BA3182, a bispecific candidate that is in Phase 1 study for the treatment of adenocarcinomas, as well as BA3361, which is in preclinical studies for treating multiple tumor types. The company was founded in 2007 and is headquartered in San Diego, California.