
Gossamer Bio
A biopharmaceutical company focused on the development and commercialization of seralutinib for the treatment of pulmonary arterial hypertension.
About
Gossamer Bio is a clinical-stage biopharmaceutical company focused on developing its investigational drug product, seralutinib, for the treatment of pulmonary arterial hypertension (PAH) and pulmonary hypertension associated with interstitial lung disease (PH-ILD). Seralutinib is an inhaled inhibitor designed to enhance the lives of people living with these rare diseases. The company is committed to advancing new therapies and supporting patient communities.
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Key facts
- Website
- gossamerbio.com
- Headquarters
- San Diego, California, USA
- Founded
- 2017
- Employees
- 154
- Total funding
- $150M (Series B)
- Business model
- B2B
Funding rounds
| Date | Round | Amount | Lead investors |
|---|---|---|---|
| 1 Jan 2019 | Series B | $150M | Arch Venture Partners, Deerfield Management |
Tech stack
Detected on gossamerbio.com, last scanned 25 Oct 2026. Run your own scan
- Frontend
- jQuery
- Analytics
- Google Tag Manager
- SEO
- Yoast SEO
- CMS / Builders
- WordPress
- CDN
- Cloudflare
- Email provider
- Microsoft 365
- Video / media
- Vimeo
Gossamer Bio scores 49. Does yours?
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Frequently asked
Is Gossamer Bio trustworthy and reputable?
StartupHub's Data Trust & Reputation score for Gossamer Bio is 88 out of 100, a trusted rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.
How much funding has Gossamer Bio raised?
Gossamer Bio has raised a total of $150M in funding. The most recent round on record is Series B.
How many employees does Gossamer Bio have?
Gossamer Bio has approximately 154 people on record.
Public record
SEC filings, insider activity, nonprofit links and pay benchmarks for Gossamer Bio


