HiddenLayer
HiddenLayer is a cybersecurity company based in Leander, Texas, that specializes in AI security solutions. Founded in 2022, the company has quickly established itself as a leader in safeguarding enterprise AI models from various threats, including inference and model theft. HiddenLayer has been recognized as a Gartner Cool Vendor for AI Security, highlighting its innovative approach in the field. The company's primary offering is the Machine Learning Detection and Response (MLDR) system, which provides a non-invasive method for monitoring AI algorithms. This platform includes real-time defense features such as alerting, isolation, and profiling to protect against adversarial attacks. In addition to MLDR, HiddenLayer offers consulting services, threat modeling, and training to help enterprises manage AI-related security risks. HiddenLayer has raised $56 million in funding, including a notable $50 million Series A round in September 2023. The company is supported by strategic investors like M12 (Microsoft’s Venture Fund) and IBM Ventures, indicating its strong potential in the AI security landscape.
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Headcount trend
HiddenLayer went from 37 employees in Jul 2023 to 128 in Jun 2025. Jan to Jun 2025: 14 people joined, 11 left.
Headcount data through Jun 2025
Org structure
Headcount by department
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All salaries1 salary profiles in the US
H-1B sponsorship
The department split adds up all the years listed above. FY2026 alone: 1 filings.
Funding
- Sep 2023 · Venture
- Jul 2023 · Series A · $50M · M12, Capital One Ventures, Ten Eleven Ventures
- Jul 2022 · Seed · $6M · Ten Eleven Ventures, Secure Octane Investments
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HiddenLayer FAQ
How many employees does HiddenLayer have?
HiddenLayer has about 128 employees, up 4.1% over the 3 months to Jun 2025.
Does HiddenLayer sponsor H1B visas?
Yes. HiddenLayer filed 1 H1B (LCA) application in FY2026, according to the latest U.S. Department of Labor disclosures. It was for a Engineering role.
What is HiddenLayer's revenue per employee?
HiddenLayer makes about $78K in revenue per employee, based on $10M annual revenue and 128 employees.
How much does HiddenLayer pay?
6figr has 1 salary profile for HiddenLayer in the US, with pay broken down by role, level, gender and ethnicity on the HiddenLayer salaries page. See HiddenLayer salaries
How much funding has HiddenLayer raised?
HiddenLayer has raised $56M in total funding.
Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.