Every new California business filing, every day4 biotechnology businesses recently registered in South San Francisco, California.
Updated August 19, 2026 · Most recent business filing Jul 7, 2026

Every new California filing, every day
See how it worksThis page lists new biotechnology businesses registered in South San Francisco, California. We currently track 4, sourced directly from the California Division of Corporations and refreshed daily as new biotechnology companies file.
Recent additions include IDEAYA Biosciences, Gyges Oncology, and Aligos Therapeutics. The most recent biotechnology business filing was on Jul 7, 2026.
Each entry shows the filing date and, where we can verify it, the owner name and contact details. If you sell to biotechnology businesses in South San Francisco, this is one of the freshest prospect lists in the market.
IDEAYA Biosciences is a precision oncology company based in South San Francisco, California, focused on developing targeted therapies for hard-to-treat cancers. The company's website describes its approach to targeting cancer vulnerabilities and provides contact information matching the LLC filing's address and officer names. The business operates in the biotechnology sector, specifically in oncology drug discovery and development.
Gyges Oncology is a biotechnology company based in South San Francisco, California, specializing in oncology. The company's website (gyges.bio) provides contact and career information, indicating an active business presence. The entity name and location align with the LLC filing, confirming it is the same business.
Aligos Therapeutics is a publicly traded biopharmaceutical company focused on discovering and developing targeted antiviral therapies for chronic hepatitis B (CHB), COVID-19, and nonalcoholic steatohepatitis (NASH). The company is headquartered at 1 Corporate Drive in South San Francisco, California, as listed on its website and the LLC filing. It trades on NASDAQ under the ticker ALGS.
Alumis Inc. is a precision immunology company headquartered in South San Francisco, CA, developing therapies for immune-mediated diseases. Multiple biotech industry profiles (Biospace) confirm its active operations and recent merger activity.
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