Attestable Raises $20M Seed

Attestable, an Israeli cybersecurity startup based in Israel with operations in California, has raised $20 million in Seed funding to advance its cryptographic technology designed to verify the behavior of artificial intelligence systems. The company was founded in 2025 to address the growing need for accountability in AI-driven decision-making processes.

Investors

The funding round was led by TLV Partners and Altimeter Capital. Additional investors participating in the round include Netz Capital, Cerca Partners, and individual investors Assaf Rappaport, Yevgeny Dibrov, Nadir Izrael, Sharin Fisher Dibrov, and Charlie Songhurst.

Attestable Use of Funds

The company plans to use the new capital to expand its core team and continue the development of its mathematical zero-knowledge proof technology for AI security.

About Attestable

Founded in 2025 by mathematicians Yogev Bar-On, Shahar Papini, and Shahar Samocha, Attestable is a cybersecurity company developing technology that allows organizations to verify AI calculations and inputs without compromising model confidentiality or sensitive data. Their mission is to provide foundational infrastructure to secure AI models against hostile actors and ensure operational reliability for critical industries.

Funding Details

Company Website: https://attestable.com

Company: Attestable
Raised: $20M
Round: Seed
Funding Date: August 11, 2026
Lead Investor: TLV Partners and Altimeter Capital
Additional Investors: Netz Capital, Cerca Partners, Assaf Rappaport, Yevgeny Dibrov, Nadir Izrael, Sharin Fisher Dibrov, Charlie Songhurst
Software Category: Cybersecurity
Source: https://www.calcalistech.com/ctechnews/article/h1ddvrd8mg