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Attestable

Category: AI Safety

An AI trust-layer platform that provides a 'truth layer' for large language models, ensuring model outputs, prompts, and system integrity are verifiable and tamper-proof. Attestable was founded in 2025. The company is led by Yogev Bar-On. Based in Tel Aviv, Israel. Team size: 1-10. Total funding raised: $18.5M. Latest round: Seed. Key investors include ["TLV Partners"].

Founded
2025
Headquarters
Tel Aviv, Israel
Team size
1-10
Total funding
$18.5M

Value proposition

Eliminates the 'black box' problem of AI by providing cryptographic and mathematical proof of model reliability, enabling secure and compliant AI adoption in regulated industries.

Products and solutions

["Attestable Audits (Verifiable AI safety benchmarks)","AI Trust Layer (Real-time output and prompt verification)","Remote Attestation Service (Cryptographic proof of model provenance)","Secure Enclave Execution (Confidential computing for AI models)"]

Unique value

Founded by former SSI engineer Shahar Papini and CEO Yogev Bar-On (ex-Meta, RAND), applying advanced cryptographic techniques like Zero Knowledge Proofs (ZKP) to AI safety.

Target customer

Enterprise organizations deploying LLMs in production, AI safety and compliance teams, AI model developers, and third-party auditors.

Industries served

["Artificial Intelligence","Cybersecurity","Financial Services","Healthcare","Legal & Compliance"]

Technology advantage

Utilizes Trusted Execution Environments (TEEs) and Remote Attestation to issue unforgeable proofs that a model has adhered to specific safety or compliance properties without exposing proprietary model weights.

How they differentiate

Utilizes cryptographic 'Remote Attestation' and Trusted Execution Environments (TEEs) to provide mathematical proof of model integrity, moving beyond simple statistical monitoring to a verifiable 'truth layer.'

Main competitors

["Modulus Labs","Robust Intelligence","Arthur AI"]

Key partnerships

["TLV Partners (Lead Seed Investor)","Academic and research collaborations (ICML, University of Cambridge)","Cloud infrastructure providers (AWS Nitro/Intel SGX integration)"]

Notable customers

["Early design partners in regulated industries (Financial Services, Healthcare)"]

Major milestones

["Founded in July 2025 by former SSI engineer Shahar Papini and team","Closed $18.5M Seed round led by TLV Partners in early 2025","Company operating in stealth mode as of Feb 2026"]

Growth metrics

Rapidly scaling engineering team with elite talent from Safe Superintelligence (SSI) and Starkware; valuation estimated at ~$71M.

Market positioning

Deep-tech AI safety infrastructure provider for high-stakes enterprise deployments.

Geographic focus

Global (Headquartered in Israel with primary market focus on North America and Europe).

Patents and IP

Formal patents not yet publicly disclosed.

About Yogev Bar-On

PhD in Computer Science from Tel Aviv University; former Software Engineer at Meta and Researcher at the RAND Corporation.

Official website: