Every new California business filing, every dayRythm Health
Rythm Health offers at-home blood testing services, described as the world's easiest blood test. The company operates from San Francisco, California, at 2261 Market Street. Their website provides information about blood testing and customer support.
Filed June 30, 2026 · San Francisco, CA · San Francisco County
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California Secretary of State (bizfile Online) · Entity 20261809749 · Retrieved July 3, 2026
About Rythm Health
Rythm Health, Inc. filed in California on June 30, 2026, with a principal address in San Francisco. Its domain was registered on April 8, 2024, over two years before the filing, through NameCheap. The website, built with Framer, is modern and its identity was confirmed. No annual report or EIN on file yet. We estimate revenue between $10M and $50M and 26 to 100 employees.
- Domain registered 813 days before the filing date.
- Website built with Framer and identity confirmed.
- We estimate revenue of $10M-$50M and 26-100 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 387 new businesses registered in San Francisco in June 2026, one of 2 healthcare businesses.
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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 Rythm Health registered?
Rythm Health was registered as Corp on June 30, 2026 in California.
Where is Rythm Health located?
Rythm Health is based in San Francisco, CA, 94114, in San Francisco County.
What type of business is Rythm Health?
Rythm Health is classified as a healthcare business (at-home blood testing).
Does Rythm Health have an EIN on file?
No EIN was found on file for Rythm Health at the time of registration.
Who Sells to This Business
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