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Attestable raises $20 million in Seed funding led by TLV Partners and Altimeter Capital to develop AI behavior verification technology.

PRIVATEAug 11, 2026•about 2 hours ago

Amount Raised

$20 Million

Round Type

Seed

Tel AvivArtificial IntelligenceNetwork Security

Investors

Charlie SonghurstSharin Fisher DibrovNadir IzraelYevgeny DibrovAssaf RappaportCerca PartnersNetz CapitalAltimeter CapitalTlv Partners

Description

Attestable, an Israeli cybersecurity startup, has secured $20 million in Seed funding. The company aims to enhance AI verification capabilities, ensuring that AI systems are operating as intended. This funding round was led by TLV Partners and Altimeter Capital, with participation from various private investors. The technology addresses the growing need for security and reliability in AI applications across various sectors.

Company Information

Company

Attestable

Location

Tel Aviv, Tel Aviv District, Israel

About

Attestable is a Tel Aviv-based startup co-founded by Shahar Papini, Yogev Bar-On, and Shahar Samocha, focusing on developing an 'AI trust-layer' to ensure system integrity by verifying AI models, prompts, and outputs. The company aims to secure AI usage and prevent malicious tampering in response to growing concerns over the reliability of generative AI systems. Still operating in stealth mode, Attestable has raised $18.5 million in Seed funding to advance its mission. The company takes a different approach compared to larger firms by addressing the brittleness and manipulation risks of current AI technologies.

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