Seattle, WA · Founded 2009 · Privately Held (backing)
Developer of novel therapies designed for the treatment of rare diseases. Immusoft is based in Seattle, WA and was founded in 2009. It was valued at $65.2 million at its later-stage round in Mar 2025, the last priced event on record. It has raised $54.8 million across 6 recorded rounds; the latest was a $4.6 million seed round in May 2024.
PMV mark · valuation
$65.2M
Oct 2026
Priced at
its later-stage round
Mar 2025
Total raised
$54.8M
Last round
Seed Round
May 2024
Cap table — not yet on record
Immusoft's share-class structure hasn't surfaced in our sources yet. Cap tables are assembled from certificates of incorporation, round filings, and disclosures as they land.
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·The complete investor list: 29 names
·Watch Immusoft: the Monday email on marks, rounds and moves