Every new California business filing, every dayGyges Oncology
Gyges Oncology is a biotechnology company based in South San Francisco, California, focused on oncology therapeutics. The website provides contact and careers information, indicating an active business. The LLC filing lists a principal address in San Mateo, CA, which is consistent with the nearby South San Francisco location.
Filed January 6, 2026 · San Mateo, CA · San Mateo County
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California Secretary of State (bizfile Online) · Entity 20261023409 · Retrieved June 13, 2026
About Gyges Oncology
Gyges Oncology, Inc. filed in California on January 6, 2026, as a biotechnology corporation focused on oncology therapeutics. Its principal address is in San Mateo. The company has a modern website that matches its filing name and address, and we estimate revenue under $100,000 with 1 to 5 employees. No annual report or EIN on file yet.
- Filed in California on January 6, 2026.
- Principal location is San Mateo.
- Website confirmed to match filing name and address.
- We estimate revenue under $100,000 and 1 to 5 employees.
- No annual report or EIN on file yet.
Compiled from the state record, the company's public web presence, and our own research; revenue, employee, and footprint figures are estimates, not verified financials. Updated August 23, 2026.
One of 11 new businesses registered in San Mateo in January 2026, and the only biotechnology business registered there that month.
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Filing Details
Verified Business Profile
Contact Information
Verified Website Profile
We matched this business to its website and pulled the domain's registration (WHOIS) record. Domain age is one of the strongest signals that a filing is a truly new business and not a re-filing or paperwork change.
Frequently Asked Questions
When was Gyges Oncology registered?
Gyges Oncology was registered as Corp on January 6, 2026 in California.
Where is Gyges Oncology located?
Gyges Oncology is based in San Mateo, CA, 94402, in San Mateo County.
What type of business is Gyges Oncology?
Gyges Oncology is classified as a biotechnology business (oncology therapeutics).
Does Gyges Oncology have an EIN on file?
No EIN was found on file for Gyges Oncology at the time of registration.
Who Sells to This Business
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