Gossamer Bio
Gossamer Bio

Gossamer Bio

Measured by AhrefsDR49Ahrefs DR: 49/100. Above median. Measured by Ahrefs. Median 44.Measured by StartupHub.aiAgent47Agent Readiness: 47/100. Above median. Measured by StartupHub.ai. Median 41.Measured by Google PageSpeedSpeed62Site Speed: 62/100. Above median. Measured by Google PageSpeed. Median 62.Measured by StartupHub.aiTrust88Data Trust: 88/100. Top 25%. Measured by StartupHub.ai. Median 61.

A biopharmaceutical company focused on the development and commercialization of seralutinib for the treatment of pulmonary arterial hypertension.

2017Active154San Diego, USA

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.

Key facts

Website
gossamerbio.com
Headquarters
San Diego, California, USA
Founded
2017
Employees
154
Total funding
$150M (Series B)
Business model
B2B

Funding rounds

Funding rounds raised by Gossamer Bio
DateRoundAmountLead investors
1 Jan 2019Series B$150MArch Venture Partners, Deerfield Management

Tech stack

Detected on gossamerbio.com, last scanned 25 Oct 2026.

Frontend
jQuery
Analytics
Google Tag Manager
SEO
Yoast SEO
CMS / Builders
WordPress
CDN
Cloudflare
Email provider
Microsoft 365
Video / media
Vimeo

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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