Every new Connecticut business filing, every dayYarrow Bioscience
MONICA ASHIYA, Principal
Yarrow Bioscience is a biotechnology company based in New Haven, Connecticut, focused on developing treatments for Graves' disease and thyroid eye disease (TED). The company's website describes its mission as 'bringing life into balance' and 'rapidly and directly disrupting the central mechanism' of these autoimmune conditions. The site lists multiple contact emails and names of key personnel, including Rebecca, Peter, Payton, Ashiya, Frey, Alford, Lori, and Rachael, aligning with the LLC's registered principals.
Filed January 28, 2026 · New Haven, CT · New Haven County
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Connecticut Secretary of the State (business.ct.gov) · Entity 3366353 · Retrieved July 27, 2026
About Yarrow Bioscience
YARROW BIOSCIENCE, INC. was filed in Connecticut on January 28, 2026, as a biotechnology company focused on autoimmune disease therapeutics. The company registered its domain on November 13, 2025, 76 days before filing, and the website is a modern site built with view-transitions that matches the filing name and address. The company has six principals: MONICA ASHIYA, LORI PAYTON, PETER FONG, RACHAEL ALFORD, and REBECCA FREY. No annual report or EIN is on file yet. We estimate the company's revenue range is $1M-$10M and its employee range is 6-25, with a brick-and-mortar footprint. The company shares its address with one other entity.
- Domain registered 76 days before the filing date.
- Filed in Connecticut as a biotechnology company.
- Website is modern with view-transitions and confirms the business identity.
- Six principals are listed, all with the title Principal.
- Shares its address with one other entity.
- 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 134 new businesses registered in New Haven in January 2026, and the only biotechnology business registered there that month.
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Filing Details
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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.
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Frequently Asked Questions
When was Yarrow Bioscience registered?
Yarrow Bioscience was registered as Corp on January 28, 2026 in Connecticut.
Where is Yarrow Bioscience located?
Yarrow Bioscience is based in New Haven, CT, 06513, in New Haven County.
What type of business is Yarrow Bioscience?
Yarrow Bioscience is classified as a biotechnology business (autoimmune disease therapeutics).
Does Yarrow Bioscience have an EIN on file?
No EIN was found on file for Yarrow Bioscience at the time of registration.
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