# HiddenLayer

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/hiddenlayer

- Industry: IT Security/Cybersecurity
- Headquarters: Texas City, US
- Website: www.hiddenlayer.com
- Total disclosed funding: $155M
- Latest round: Series B (Sep 2, 2026)
- Investors on record: 10

## About

Based in, Texas, US, and founded in 2022 by its CEO Christopher Sestito, and co-founders James Ballard, and Tanner Burns, HiddenLayer, Inc. operates as a developer of a security platform to safeguard the machine learning models. In September 2026, HiddenLayer, Inc. raised USD 100 million in series B funding led by Delta-v Capital, with participation from Morgan Stanley Investment Management, Booz Allen Ventures, M12, and Ten Eleven Ventures. 

HiddenLayer, Inc. offers machine learning detection and response (MLDR), a software-based platform that monitors the inputs and outputs of machine learning algorithms for anomalous activity. It detects and responds to attacks against ML models to protect intellectual property and trade secrets. It also protects enterprises and their customers from this emerging attack vector.

HiddenLayer generates revenue primarily through subscription fees for its AI security platform, which helps enterprises discover, monitor, test, and protect machine learning and generative AI systems throughout their lifecycle. The platform provides capabilities such as AI asset discovery, model scanning, supply chain security, attack simulation, runtime protection, and threat detection against risks including prompt injection, adversarial attacks, model theft, and data poisoning. The company also derives revenue from related AI security assessment, consulting, and training services that help organizations strengthen the security posture of their AI deployments.

The company plans to use the funding to deepen its enterprise platform, including its Agentic Runtime Security capabilities, and Agent Harness Security, a new solution that extends the Runtime Security module to secure AI coding agents at runtime and protect enterprises adopting autonomous coding agents into their stack.

## Funding rounds

- Series B, Sep 2, 2026, $100M — Morgan Stanley Investment Management, Delta-v Capital, M12, Ten Eleven Ventures, Booz Allen Ventures
- Series A, Sep 22, 2023, $18M — IBM Ventures, M12, Capital One Ventures, Ten Eleven, Moore Strategic Ventures, Booz Allen Ventures
- Series A, Jul 21, 2023, $32M — IBM Ventures, M12, Capital One Ventures, Ten Eleven, Moore Strategic Ventures, Booz Allen Ventures
- Seed, May 12, 2022, $4.8M — Ten Eleven, Secure Octane

## Investors

- Ten Eleven — Seed, Series A
- Secure Octane (https://capitalatlas.ai/funds/secure-octane) — Seed
- IBM Ventures (https://capitalatlas.ai/funds/ibm-ventures) — Series A
- M12 (https://capitalatlas.ai/funds/m12) — Series A, Series B
- Capital One Ventures (https://capitalatlas.ai/funds/capital-one-ventures) — Series A
- Moore Strategic Ventures (https://capitalatlas.ai/funds/moore-strategic-ventures) — Series A
- Booz Allen Ventures (https://capitalatlas.ai/funds/booz-allen-ventures) — Series A, Series B
- Morgan Stanley Investment Management — Series B
- Delta-v Capital (https://capitalatlas.ai/funds/delta-v-capital) — Series B
- Ten Eleven Ventures (https://capitalatlas.ai/funds/ten-eleven-ventures) — Series B