Every new Washington filing, every dayPharmaceuticalsBiotechnologyActiveVerified
Omeros
Greg Demopulos, Principal
Omeros Corporation is a pharmaceutical company based in Seattle, Washington, focused on discovering and developing novel therapeutics. The company's website describes it as breaking the mold in the pharmaceutical industry through novel discovery, strategic translational research, and vigorous clinical programs. The site lists officers including Greg and Diana, matching the filing's principals Greg Demopulos and Diana Perkinson. The business operates from 201 Elliott Avenue West in Seattle, as confirmed by both the filing and website.
Filed November 26, 2025 · Seattle, WA · King County
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See how it worksAbout Omeros
Omeros is a pharmaceuticals business (Corp) registered on November 26, 2025 with the Washington Division of Corporations. The business is located in Seattle, Washington 98119. King County is its county of record. The filing lists Greg Demopulos as Principal.
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Filing Details
Entity NameOmeros Corporation
Entity TypeCorp
Entity Number3329897
Filing DateNovember 26, 2025
Principal AddressLocked
City / State / ZipSeattle, WA 98119
CountyKing
TimezonePacific (PT)
EIN on FileNo
Verified Business Profile
SubcategoryBiotechnology
Contact Information
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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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Officers / Authorized Persons
G
P
R
D
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P
P
D
G
D
T
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D
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A
Document Timeline
Filing timeline will be available soon.
Frequently Asked Questions
When was Omeros registered?
Omeros was registered as Corp on November 26, 2025 in Washington.
Where is Omeros located?
Omeros is based in Seattle, WA, 98119, in King County.
What type of business is Omeros?
Omeros is classified as a pharmaceuticals business (biotechnology).
Does Omeros have an EIN on file?
No EIN was found on file for Omeros at the time of registration.
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