What is Attestable?
Attestable operates at the intersection of cybersecurity and artificial intelligence, providing a software-only zero-trust infrastructure designed to ensure AI system integrity. The company utilizes zero-knowledge proofs (ZKPs) to enable organizations to cryptographically verify that AI outputs are derived accurately from specific models and inputs. This methodology guarantees data privacy, mitigates tamper-risk, and protects proprietary model weights without the need to rely on specific hardware vendor enclaves. By decoupling security from hardware, Attestable offers a flexible, scalable solution for enterprises seeking to deploy AI with verifiable accountability.
How much funding has Attestable raised?
Attestable has raised a total of $20M across 1 funding round:
Seed
$20M
Seed (2026): $20M with participation from Altimeter Capital, TLV Partners, and Cerca Partners
Key Investors in Attestable
Altimeter Capital
Altimeter Capital is an investment firm that partners with technology companies from early growth through public markets, managing concentrated, long-term portfolios to support durable value creation.
TLV Partners
TLV Partners is an Israeli venture capital firm that invests in early-stage startups, focusing on exceptional teams poised to shape the future across sectors including AI and application security.
Cerca Partners
Cerca Partners is a prominent co-investment venture capital fund that specializes in identifying and investing in promising Israeli tech startups, leveraging a strong network of successful entrepreneurs.
What's next for Attestable?
With this major enterprise-level funding, Attestable is poised to accelerate its product development roadmap and expand its market reach. The strategic focus will likely center on enhancing the scalability of its ZKP-based verification engine to support increasingly complex AI architectures. As organizations face mounting regulatory pressure to demonstrate the provenance and accuracy of their AI models, Attestable's infrastructure is positioned to become a critical component of the enterprise AI stack. The company will likely prioritize strategic partnerships with cloud service providers and large-scale AI model developers to integrate its verification layer directly into the deployment pipeline, ensuring that trust is built into the foundation of the AI lifecycle.
See full Attestable company page
