Weave Bio
Weave Bio is an artificial intelligence company in San Francisco, United States, founded in 2023. It has raised $30.0M across 2 rounds, most recently a $20.0M Series A in October 2025.
The AI platform built for drug development
- Headquarters
- San Francisco, California
- Employees
- 11–50
- Founded
- 2023
- Business Model
- B2B
- Website
- weave.bio
- Total Funding
- $30.0M
- Last Round
- $20.0M Series AOct 2025
- Rounds
- 2
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 2 funding rounds and 6 investors for this company. The full record is or through the API.
About
Weave Bio is an AI-native regulatory automation platform built for drug development. Founded in 2023 and headquartered in San Francisco, Weave supports the entire regulatory content lifecycle — from authoring and data extraction to submission publishing and response management. The platform helps pharmaceutical companies, biotech firms, and CROs automate IND filings, HAQ management, and global regulatory submissions. Weave's AI infuses intelligence into every step of the workflow, including data verification, document drafting, and review, enabling regulatory teams to navigate evolving frameworks from agencies such as the FDA faster and with greater confidence. Co-founded by Brandon Rice (CEO) and Ari Caroline (CSO), the company's mission is to equip human regulatory experts with AI tools that reduce time-to-submission without sacrificing quality, ultimately helping life-saving therapies reach patients sooner. Partners include Parexel, and the platform is backed by leading life science investors.
Summary
It lists 11–50 employees. It has raised $30.0M in total across 2 rounds, most recently a $20.0M Series A round in Oct 2025. Investors include Innovation Endeavors, US Venture Partners and Magnetic.
Tech & App Stack
6 technologies & apps tracked
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Funding History
Oct 2025
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Funding: Seed through Series A. Amounts, valuations, and investors where available.
Investors
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