Attestable
The Trust Layer for AI
San Francisco, United States · Founded 2021 · $18.5M raised
- Headquarters
- San Francisco, California
- Employees
- 11–50
- Founded
- 2021
- Business Model
- B2B
- Website
- attestable.com
- Total Funding
- $18.5M
- Last Round
- $18.5M SeedFeb 2026
- Rounds
- 1
About
Attestable is an AI trust layer company that ensures the integrity of AI systems by verifying models, prompts, and outputs. Founded in 2021 and headquartered in San Francisco, Attestable provides enterprises with infrastructure to make AI deployments auditable, verifiable, and trustworthy. The company raised 18.5M USD in funding and has a team of 11-50 employees. Attestable addresses the critical challenge of establishing provable trust in AI agents and generative AI applications, sitting as an independent verification layer between organizations and their AI systems to detect tampering, drift, and compliance failures.
Summary
Attestable is an Artificial Intelligence company based in San Francisco, United States, founded in 2021. It has raised $18.5M in total across 1 round, most recently a $18.5M Seed round in Feb 2026. Investors include TLV Partners.
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Funding History
Feb 2026
Investors
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