COMPANY PROFILE

Tinfoil

End-to-end encrypted AI infrastructure with secure aggregation and Prometheus-compatible metrics for privacy-focused analytics

San Francisco, United StatesFounded 2024Cybersecurity

Valuation <$5M Last recorded · 2025

Headcount <100 Current team size

Total funding $0–10M Disclosed equity funding

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About Tinfoil

Tinfoil.sh operates in the AI security sector, providing end-to-end encrypted solutions for monitoring and debugging applications. The company offers a platform that integrates seamlessly with existing tools and workflows, ensuring privacy through secure aggregation protocols. Tinfoil.sh serves clients who require robust security measures for their AI infrastructure, particularly those concerned with data privacy and integrity. The business model revolves around offering a secure API compatible with OpenAI's Chat Completions API, allowing for easy integration while maintaining data confidentiality. Revenue is generated through platform subscriptions and personalized demos that showcase the security benefits of their solutions. The market focus is on organizations that prioritize data security and require verifiable privacy measures in their AI operations. Key personnel include advisors and engineers with experience from industry leaders like Cloudflare, Apple, Microsoft Research, and NVIDIA, highlighting the company's strong foundation in research and development.

MoreLess Source: Dealroom company data

At a glance

Status: Operational
Founded: 2024
Headquarters: San Francisco, United States
Employees: 8
Open positions: None listed
Dealroom signal: 73.1/100
Industry: Security
Sub-industry: Cloud & Infrastructure
Sector: Cybersecurity, Core AI, Spinout, Novel AI, Confidential Computing, Privacy-Enhancing Technologies, YC X25, DT and LS
Technology: Artificial Intelligence, Deep Tech
Business model: SaaS
Client focus: b2b
Links: Website LinkedIn X

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Funding history

3 recorded events

Company financing events and reported valuations.

Deal type	Date	Amount	Valuation	Investors	Source
EARLY VC✓Equity / VC	May 2026	$0	—	Tekedia Capital	↗
SEED✓Equity / VC	May 2025	$125K	$500K	Y Combinator	—

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Growth signals

Tinfoil website traffic

Latest recorded traffic for Tinfoil is 16K monthly website visits, down 44.8% over the last three months. Tinfoil's team grew 33.3% over the past year.

Latest monthly visits16K 3-month web change-44.8% 1-year team growth+33.3%

Monthly website visitsJun 2025–Jul 2026

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DEDecentriqA Switzerland-based enterprise SaaS platform providing data clean rooms and a founding member of the Confidential Computing Consortium including Microsoft, Google, Facebook and Intel	Zurich, Switzerland	Operational
MSMithril SecurityOpen-source tools for confidential AI deployment	Paris, France	Acquired
ESEdgeless SystemsBuilding a high-performance platform for the provably secure and accountable storing and processing of data	Bochum, Germany	Operational
LILinksightProvides a platform for privacy-proof decentralized data analysis	Utrecht, Netherlands	Operational
ASAstranConfidential Data Cloud	Paris, France	Operational
LTLeapYear TechnologiesLeapYear integrates the latest advances in machine learning and cryptography to protect data in use	San Francisco, United States	Acquired
INInpherPrivacy-preserving computation for secure AI and machine learning	New York City, United States	Acquired