Company lists · Data refreshed September 2026
Top 22 Biotherapeutics companies based in Seattle, United States
RevenueBase identified 48 company matches for biotherapeutics companies associated with Seattle, United States as of September 2026 and tracks 2,526 professional contacts across them, including 1,116 with verified work emails. Across the United States, San Diego is the largest hub for this category (187 companies); Seattle has 48.
This list covers company matches for biotherapeutics companies associated with Seattle, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 22 largest biotherapeutics companies based in Seattle, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 678 contacts → | ||||
Exact match “Adaptive Biotechnologies is a pioneer and leader in immune-driven medicine that aims to improve people’s lives by learning from the wisdom of their adaptive immune systems.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 218 contacts → | ||||
Exact match “Omeros is a Seattle-based biopharmaceutical company committed to discovering, developing, and commercializing small-molecule and protein therapeutics for large-market as well as…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 205 contacts → | ||||
Exact match “Umoja is developing a new approach to cancer therapy that retools a patient’s immune system in vivo, enhancing the body’s natural capacity to fight cancer.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 99 contacts → | ||||
Exact match “We have merged with Bristol Myers Squibb creating a leading biopharma company, ideally positioned to discover, develop and deliver innovative medicines for patients fighting…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 61 contacts → | ||||
Exact match “HDT Bio is a vaccine and immunotherapy Biotechnology company developing drugs for immunotherapy of cancers and infectious diseases with next-generation approaches designed to…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 49 contacts → | ||||
Exact match “Alpine Immune Sciences is now part of Vertex Pharmaceuticals.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 30 contacts → | ||||
Exact match “Atossa Therapeutics, Inc.(Nasdaq: ATOS) is a biopharmaceutical company developing innovative therapeutics to fight breast cancer, one of the most common and devastating diseases…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 24 contacts → | ||||
Exact match “Bonum Therapeutics is focused on a proven technology that utilizes regulation to create targeted, highly active, and less toxic medicines.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 24 contacts → | ||||
Exact match “Archon is a biotechnology company developing computationally designed proteins to unlock powerful therapeutic targets that lie beyond the reach of existing modalities and to…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 24 contacts → | ||||
Exact match “Cyrus Biotechnology is a pre-clinical-stage biotech company combining protein design and screening to create novel biologics for serious unmet medical needs.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 21 contacts → | ||||
Exact match “Moonlight Bio is a Seattle-based, preclinical stage biotech company pioneering the development of cutting-edge cell therapies for the treatment of cancer.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 18 contacts → | ||||
Exact match “Immusoft is a cell therapy company focused on developing novel therapies for rare diseases using sustained delivery of therapeutic proteins from a patient’s own cells.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 18 contacts → | ||||
Exact match “The company's lead drug AVM0703, a proprietary innovative formulation of dexamethasone, when given at supra-pharmacologic doses has a novel mechanism of action to mobilize the…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 17 contacts → | ||||
Exact match “In 2022, we became part of Absolute Biotech, a new company that unites multiple life science brands into one organization specializing in antibody reagents and services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 13 contacts → | ||||
Exact match “OncoResponse is a privately held biotech company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 8 contacts → | ||||
Exact match “The Cascadia Drug Development Group was founded by seasoned industry experts who are passionate about immunology and drug development.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 4 contacts → | ||||
Exact match “PAI Life Sciences is a biotechnology company located in Seattle, WA, specialized in the developmental and translational research necessary to bring products from the laboratory to…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 4 contacts → | ||||
Exact match “Who we are: At Ice Bear Therapeutics, we’re pioneering a new era in biologic drug manufacturing by using mammalian cell lines in a fully continuous process to produce insulin.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 4 contacts → | ||||
Exact match “Orlance, Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 3 contacts → | ||||
Exact match “Zeroarc builds specialized software for Pharmaceutical companies to automate, modernize, and boost collaboration for their Biometrics workflows.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “Intrinsic Medicine is a patient solutions-focused biotechnology company with a platform and culture built to efficiently and ethically bring transformative new medicines to people…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 2 contacts → | ||||
Exact match “Neoleukin Therapeutics emerged from the University of Washington Institute for Protein Design in January of 2019.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “biotherapeutics companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 22 of 48 biotherapeutics companies based in Seattle, United States
See the full list, filter by size, metro and specialty, and access 1,116 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Biotherapeutics companies based in Seattle, United States at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 48 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with Seattle, United States whose business descriptions match “biotherapeutics companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 1,116 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Biotherapeutics companies by metro in the United States
- Biotherapeutics companies in San Diego187
- Biotherapeutics companies in Cambridge154
- Biotherapeutics companies in Boston111
- Biotherapeutics companies in New York84
- Biotherapeutics companies in San Francisco61
- Biotherapeutics companies in South San Francisco55
- Biotherapeutics companies in Houston47
- Biotherapeutics companies in Waltham40
- Biotherapeutics companies in Philadelphia37
- Biotherapeutics companies in Durham35
- Biotherapeutics companies in Chicago34
- Biotherapeutics companies in Rockville31
- Biotherapeutics companies in Los Angeles29
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “biotherapeutics companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many biotherapeutics companies are there based in Seattle, United States?
RevenueBase identified 48 company matches for biotherapeutics companies associated with Seattle, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Adaptive Biotechnologies Corp tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in the United States has the most biotherapeutics companies?
San Diego leads the United States with 187 company records, followed by Cambridge (154) and Boston (111). Seattle has 48.
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,116 professional contacts with verified work emails tracked across these 48 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 48 biotherapeutics companies based in Seattle, United States. Start with a free account, no credit card.
Download this list →Related lists
Biotherapeutics companies by geography
- Biotherapeutics companies based in the United States
- Biotherapeutics companies based in the United Kingdom
- Biotherapeutics companies based in France
- Biotherapeutics companies based in Germany
- Biotherapeutics companies based in Canada
- Biotherapeutics companies based in Switzerland
- Biotherapeutics companies based in Spain
- Biotherapeutics companies based in Brazil
- Biotherapeutics companies based in Italy
- Biotherapeutics companies based in Australia
- Biotherapeutics companies based in the Netherlands
- Biotherapeutics companies based in Israel
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Biotherapeutics companies based in the United States
- Biotherapeutics companies based in the United Kingdom
- Biotherapeutics companies based in France
- Biotherapeutics companies based in Germany
- Biotherapeutics companies based in Canada
- Biotherapeutics companies based in Switzerland
Company intelligence · public preview
Top 22 biotherapeutics companies based in Seattle, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 48 matching company records for biotherapeutics companies based in Seattle, United States, with 2,526 tracked contacts and 1,116 verified work emails.
This public preview shows 22 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 22 biotherapeutics companies based in Seattle, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Adaptive Biotechnologies Corpadaptivebiotech.comHQ: Seattle, WA, United StatesReported employees: 501-1,000 | Seattle, WA, United States | 501-1,000 | Exact match | 678 contacts → |
“Adaptive Biotechnologies is a pioneer and leader in immune-driven medicine that aims to improve people’s lives by learning from the wisdom of their adaptive immune systems.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Omeros Corporationomeros.comHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 218 contacts → |
“Omeros is a Seattle-based biopharmaceutical company committed to discovering, developing, and commercializing small-molecule and protein therapeutics for large-market as well as…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Umoja Biopharmaumoja-biopharma.comHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 205 contacts → |
“Umoja is developing a new approach to cancer therapy that retools a patient’s immune system in vivo, enhancing the body’s natural capacity to fight cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Juno Therapeutics, INCbms.comHQ: Seattle, WA, United StatesReported employees: 501-1,000 | Seattle, WA, United States | 501-1,000 | Exact match | 99 contacts → |
“We have merged with Bristol Myers Squibb creating a leading biopharma company, ideally positioned to discover, develop and deliver innovative medicines for patients fighting…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  HDT BIOhdt.bioHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 61 contacts → |
“HDT Bio is a vaccine and immunotherapy Biotechnology company developing drugs for immunotherapy of cancers and infectious diseases with next-generation approaches designed to…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Alpine Immune Sciences, INCalpineimmunesciences.comHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 49 contacts → |
“Alpine Immune Sciences is now part of Vertex Pharmaceuticals.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Atossa Therapeutics, INCatossatherapeutics.comHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 30 contacts → |
“Atossa Therapeutics, Inc.(Nasdaq: ATOS) is a biopharmaceutical company developing innovative therapeutics to fight breast cancer, one of the most common and devastating diseases…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Bonum Therapeuticsbonumtx.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 24 contacts → |
“Bonum Therapeutics is focused on a proven technology that utilizes regulation to create targeted, highly active, and less toxic medicines.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Archon Biosciencesarchon.bioHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 24 contacts → |
“Archon is a biotechnology company developing computationally designed proteins to unlock powerful therapeutic targets that lie beyond the reach of existing modalities and to…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Cyrus Biotechnologycyrusbio.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 24 contacts → |
“Cyrus Biotechnology is a pre-clinical-stage biotech company combining protein design and screening to create novel biologics for serious unmet medical needs.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Moonlight BIOmoonlightbio.usHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 21 contacts → |
“Moonlight Bio is a Seattle-based, preclinical stage biotech company pioneering the development of cutting-edge cell therapies for the treatment of cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Immusoftimmusoft.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 18 contacts → |
“Immusoft is a cell therapy company focused on developing novel therapies for rare diseases using sustained delivery of therapeutic proteins from a patient’s own cells.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  AVM Biotechnologyavmbiotech.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 18 contacts → |
“The company's lead drug AVM0703, a proprietary innovative formulation of dexamethasone, when given at supra-pharmacologic doses has a novel mechanism of action to mobilize the…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Lsbio Lifespan Biosciences, INClsbio.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 17 contacts → |
“In 2022, we became part of Absolute Biotech, a new company that unites multiple life science brands into one organization specializing in antibody reagents and services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Oncoresponseoncoresponse.comHQ: Seattle, United StatesReported employees: 1-10 | Seattle, United States | 1-10 | Exact match | 13 contacts → |
“OncoResponse is a privately held biotech company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Cascadia Drug Development Groupthecddg.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 8 contacts → |
“The Cascadia Drug Development Group was founded by seasoned industry experts who are passionate about immunology and drug development.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  PAI Life Sciences INCpailifesciences.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 4 contacts → |
“PAI Life Sciences is a biotechnology company located in Seattle, WA, specialized in the developmental and translational research necessary to bring products from the laboratory to…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  ICE Bear Therapeutics SPCicebeartx.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 4 contacts → |
“Who we are: At Ice Bear Therapeutics, we’re pioneering a new era in biologic drug manufacturing by using mammalian cell lines in a fully continuous process to produce insulin.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Orlance INCorlance.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 4 contacts → |
“Orlance, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Zeroarczeroarc.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“Zeroarc builds specialized software for Pharmaceutical companies to automate, modernize, and boost collaboration for their Biometrics workflows.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Intrinsic Medicine, INCintrinsicmedicine.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“Intrinsic Medicine is a patient solutions-focused biotechnology company with a platform and culture built to efficiently and ethically bring transformative new medicines to people…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Neoleukin Therapeuticsneurogene.comHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 2 contacts → |
“Neoleukin Therapeutics emerged from the University of Washington Institute for Protein Design in January of 2019.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 22 of 48 company matches
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Biotherapeutics companies: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
48 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 48 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Biotherapeutics companies by metro in the United States
- Biotherapeutics companies in San Diego187
- Biotherapeutics companies in Cambridge154
- Biotherapeutics companies in Boston111
- Biotherapeutics companies in New York84
- Biotherapeutics companies in San Francisco61
- Biotherapeutics companies in South San Francisco55
- Biotherapeutics companies in Houston47
- Biotherapeutics companies in Waltham40
- Biotherapeutics companies in Philadelphia37
- Biotherapeutics companies in Durham35
- Biotherapeutics companies in Chicago34
- Biotherapeutics companies in Rockville31
- Biotherapeutics companies in Los Angeles29
Questions about this company list
What does Exact match mean for biotherapeutics companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many biotherapeutics companies did RevenueBase find based in Seattle, United States?
The saved snapshot records 48 matching company records, 2,526 tracked contacts and 1,116 verified emails. The public preview displays 22 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Biotherapeutics companies by geography
- Biotherapeutics companies based in the United States
- Biotherapeutics companies based in the United Kingdom
- Biotherapeutics companies based in France
- Biotherapeutics companies based in Germany
- Biotherapeutics companies based in Canada
- Biotherapeutics companies based in Switzerland
- Biotherapeutics companies based in Spain
- Biotherapeutics companies based in Brazil
- Biotherapeutics companies based in Italy
- Biotherapeutics companies based in Australia
- Biotherapeutics companies based in the Netherlands
- Biotherapeutics companies based in Israel
Cite this list
RevenueBase Data Team. Top 22 biotherapeutics companies based in Seattle, United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/biotherapeutics-companies/united-states/seattle.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Biotherapeutics companies based in the United States
- Biotherapeutics companies based in the United Kingdom
- Biotherapeutics companies based in France
- Biotherapeutics companies based in Germany
- Biotherapeutics companies based in Canada
- Biotherapeutics companies based in Switzerland
Company intelligence · public preview
Top 22 biotherapeutics companies based in Seattle, United States
RevenueBase records 48 matching company records for biotherapeutics companies based in Seattle, United States, with 2,526 tracked contacts and 1,116 verified work emails.
This public preview shows 22 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 22 biotherapeutics companies based in Seattle, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Adaptive Biotechnologies Corpadaptivebiotech.com HQ: Seattle, WA, United StatesReported employees: 501-1,000 | Seattle, WA, United States | 501-1,000 | Exact match | 678 contacts → |
“Adaptive Biotechnologies is a pioneer and leader in immune-driven medicine that aims to improve people’s lives by learning from the wisdom of their adaptive immune systems.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Omeros Corporationomeros.com HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 218 contacts → |
“Omeros is a Seattle-based biopharmaceutical company committed to discovering, developing, and commercializing small-molecule and protein therapeutics for large-market as well as…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Umoja Biopharmaumoja-biopharma.com HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 205 contacts → |
“Umoja is developing a new approach to cancer therapy that retools a patient’s immune system in vivo, enhancing the body’s natural capacity to fight cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Juno Therapeutics, INCbms.com HQ: Seattle, WA, United StatesReported employees: 501-1,000 | Seattle, WA, United States | 501-1,000 | Exact match | 99 contacts → |
“We have merged with Bristol Myers Squibb creating a leading biopharma company, ideally positioned to discover, develop and deliver innovative medicines for patients fighting…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HDT BIOhdt.bio HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 61 contacts → |
“HDT Bio is a vaccine and immunotherapy Biotechnology company developing drugs for immunotherapy of cancers and infectious diseases with next-generation approaches designed to…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Alpine Immune Sciences, INCalpineimmunesciences.com HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 49 contacts → |
“Alpine Immune Sciences is now part of Vertex Pharmaceuticals.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Atossa Therapeutics, INCatossatherapeutics.com HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 30 contacts → |
“Atossa Therapeutics, Inc.(Nasdaq: ATOS) is a biopharmaceutical company developing innovative therapeutics to fight breast cancer, one of the most common and devastating diseases…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Bonum Therapeuticsbonumtx.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 24 contacts → |
“Bonum Therapeutics is focused on a proven technology that utilizes regulation to create targeted, highly active, and less toxic medicines.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Archon Biosciencesarchon.bio HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 24 contacts → |
“Archon is a biotechnology company developing computationally designed proteins to unlock powerful therapeutic targets that lie beyond the reach of existing modalities and to…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Cyrus Biotechnologycyrusbio.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 24 contacts → |
“Cyrus Biotechnology is a pre-clinical-stage biotech company combining protein design and screening to create novel biologics for serious unmet medical needs.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Moonlight BIOmoonlightbio.us HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 21 contacts → |
“Moonlight Bio is a Seattle-based, preclinical stage biotech company pioneering the development of cutting-edge cell therapies for the treatment of cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Immusoftimmusoft.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 18 contacts → |
“Immusoft is a cell therapy company focused on developing novel therapies for rare diseases using sustained delivery of therapeutic proteins from a patient’s own cells.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | AVM Biotechnologyavmbiotech.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 18 contacts → |
“The company's lead drug AVM0703, a proprietary innovative formulation of dexamethasone, when given at supra-pharmacologic doses has a novel mechanism of action to mobilize the…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Lsbio Lifespan Biosciences, INClsbio.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 17 contacts → |
“In 2022, we became part of Absolute Biotech, a new company that unites multiple life science brands into one organization specializing in antibody reagents and services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Oncoresponseoncoresponse.com HQ: Seattle, United StatesReported employees: 1-10 | Seattle, United States | 1-10 | Exact match | 13 contacts → |
“OncoResponse is a privately held biotech company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Cascadia Drug Development Groupthecddg.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 8 contacts → |
“The Cascadia Drug Development Group was founded by seasoned industry experts who are passionate about immunology and drug development.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | PAI Life Sciences INCpailifesciences.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 4 contacts → |
“PAI Life Sciences is a biotechnology company located in Seattle, WA, specialized in the developmental and translational research necessary to bring products from the laboratory to…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | ICE Bear Therapeutics SPCicebeartx.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 4 contacts → |
“Who we are: At Ice Bear Therapeutics, we’re pioneering a new era in biologic drug manufacturing by using mammalian cell lines in a fully continuous process to produce insulin.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Orlance INCorlance.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 4 contacts → |
“Orlance, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Zeroarczeroarc.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“Zeroarc builds specialized software for Pharmaceutical companies to automate, modernize, and boost collaboration for their Biometrics workflows.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Intrinsic Medicine, INCintrinsicmedicine.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“Intrinsic Medicine is a patient solutions-focused biotechnology company with a platform and culture built to efficiently and ethically bring transformative new medicines to people…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Neoleukin Therapeuticsneurogene.com HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 2 contacts → |
“Neoleukin Therapeutics emerged from the University of Washington Institute for Protein Design in January of 2019.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 22 of 48 company matches
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Biotherapeutics companies: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
48 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 48 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Biotherapeutics companies by metro in the United States
- Biotherapeutics companies in San Diego187
- Biotherapeutics companies in Cambridge154
- Biotherapeutics companies in Boston111
- Biotherapeutics companies in New York84
- Biotherapeutics companies in San Francisco61
- Biotherapeutics companies in South San Francisco55
- Biotherapeutics companies in Houston47
- Biotherapeutics companies in Waltham40
- Biotherapeutics companies in Philadelphia37
- Biotherapeutics companies in Durham35
- Biotherapeutics companies in Chicago34
- Biotherapeutics companies in Rockville31
- Biotherapeutics companies in Los Angeles29
Questions about this company list
What does Exact match mean for biotherapeutics companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many biotherapeutics companies did RevenueBase find based in Seattle, United States?
The saved snapshot records 48 matching company records, 2,526 tracked contacts and 1,116 verified emails. The public preview displays 22 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Biotherapeutics companies by geography
- Biotherapeutics companies based in the United States
- Biotherapeutics companies based in the United Kingdom
- Biotherapeutics companies based in France
- Biotherapeutics companies based in Germany
- Biotherapeutics companies based in Canada
- Biotherapeutics companies based in Switzerland
- Biotherapeutics companies based in Spain
- Biotherapeutics companies based in Brazil
- Biotherapeutics companies based in Italy
- Biotherapeutics companies based in Australia
- Biotherapeutics companies based in the Netherlands
- Biotherapeutics companies based in Israel
Cite this list
RevenueBase Data Team. Top 22 biotherapeutics companies based in Seattle, United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/biotherapeutics-companies/united-states/seattle.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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