Attestable

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.