Addition Therapeutics
Addition Therapeutics is a startup headquartered in South San Francisco, United States, founded in 2021. It has raised at least $28.0m in outside funding, according to its filings with the US Securities and Exchange Commission (Form D), which puts it at the early stage.
Part of the 311 Institute Global Startups Directory (311institute.com). Last updated .
Funding
Addition Therapeutics has raised at least $28.0m in outside funding, according to its Form D filings with the US Securities and Exchange Commission. Form D figures are a minimum: not every round is filed.
R&D ecosystem
Addition Therapeutics sits inside the Silicon Valley and the Bay Area R&D ecosystem in the Global R&D Labs Directory.
Other startups in South San Francisco
- Asher Biotherapeutics
- Burnbot
- Dualitas Therapeutics
- Firefly Bio
- Kamau Therapeutics
- Long Bridge Medical
- Lycia Therapeutics
- Mahzi Therapeutics
- Moonwalk Biosciences
- NewLimit
- NGM Bio Holdings
Related
- Innovation profile of South San Francisco
- United States: economy and key statistics
- Global Investors Directory
- All 311 Indexes
Questions and answers
What does Addition Therapeutics do?
Addition Therapeutics is classed in biotechnology in its filings with the US Securities and Exchange Commission.
How much has Addition Therapeutics raised?
At least $28.0m, according to its Form D filings with the US Securities and Exchange Commission.
Where is Addition Therapeutics based?
Addition Therapeutics is headquartered in South San Francisco, United States.
When was Addition Therapeutics founded?
Addition Therapeutics was founded in 2021.
Source record: SEC EDGAR (Form D filings).
© 311 Institute 2026. Facts from the official sources linked on this page. The selection, classification and links are the proprietary work of the 311 Institute, protected by copyright and database rights.