HiddenLayer
hiddenlayer.com
Actively hiring
Application Security
Information Security
Cybersecurity AI
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Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$155M
6 rounds on record
Latest round
$100M
Venture round · Sep 2026 · 1 mo ago
Team
201-500
employees, estimated range
Hiring now
15
+7 posted in 30 days
Grants
$3.1M
3 grants · CORDIS
Backers
1
1011vc
The money's age
Fresh money
1 months since the last round · and hiring
Momentum
64/100
hiring for its size, a new city, in the news, fresh money
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Sep 2
Raised a round Venture round $100M · TechCrunch
Jul 17, 2025
New executive HiddenLayer Appoints Chelsea Strong as Chief Revenue Officer to Accelerate Global Growth and Customer Expansion · YahooFinance
Apr 25, 2025
On the Hacker News front page The Policy Puppetry Attack: Novel bypass for major LLMs · 313 points
Feb 6, 2024
Won a grant $1.8M · CORDIS
Sep 22, 2023
Won a grant $1.2M · CORDIS
May 5, 2023
Won a grant $75k · CORDIS
Jul 19, 2022
Launched HiddenLayer emerges from stealth to protect AI models from attacks · TechCrunch
May 12, 2022
Raised a round Venture round $4.7M · SEC Form D
2022
Founded
Tractionpublic signals, read monthly
Web presence
top 0.02%
of 133.2M domains by links, Common Crawl
Hacker News stories
14
best: 313 points
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Venture round | Sep 2026 | $100M | — | TechCrunch |
| Grant | Feb 2024 | $1.8M | — | CORDIS |
| Grant | Sep 2023 | $1.2M | — | CORDIS |
| Series A | Jul 2023 | $50.2M | — | SEC Form D |
| Grant | May 2023 | $75k | — | CORDIS |
| Venture round | May 2022 | $4.7M | — | SEC Form D |
Registers and programsofficial lists and records that name the company
| Legal entity | HiddenLayer, Inc. | SEC Form D |
Founders and leadersfrom filings, registers and the company's site
James BallardExecutive OfficerSEC Form D
Tanner BurnsExecutive OfficerSEC Form D
Christopher SestitoExecutive Officer, DirectorSEC Form D
Backed byfrom the funds' portfolios and accelerator catalogs
1011vc Investors in similar startupsfunds that back the companies most like this one
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How HiddenLayer hires
Truth index
B 80/100
Median time to fill
52 days
Ghost roles
33%
Stale roles
0%
Reposted roles
0%
HiddenLayer scores B on the Alion truth index (A is best, E worst), measured over 15 open roles re-checked against its own hiring board: 33% look like ghost listings, 0% have gone stale and 0% are the same role posted again. Its roles close in a median of 52 days. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
Overview
HiddenLayer is an Austin company founded in 2022 that secures machine learning models against adversarial attack. Its products scan model artefacts for malicious code, detect inference-time attacks such as extraction and evasion, and give security teams visibility into the AI assets running in their environment. The company grew out of research into attacks on production security models.
News
HiddenLayer nabs $100M as enterprises rush to secure their AI deployments
Security companies are scrambling to build products that can monitor not just agents but also the tools and add-ons they use.
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Report
HiddenLayer Joins Databricks Unity AI Gateway Ecosystem to Bring AI-Native Security to Enterprise AI Workloads
Read more
Report
Malware Found in Trending Hugging Face Repository "Open-OSS/privacy-filter"
HiddenLayer researchers identified a malicious Hugging Face repository typosquatting OpenAI's Privacy Filter release, distributing infostealer malware through loader.py and start.bat. Learn the indicators of compromise and recommended response actions.
Read more
Report
HiddenLayer Releases the 2026 AI Threat Landscape Report, Spotlighting the Rise of Agentic AI and the Expanding Attack Surface of Autonomous Systems
HiddenLayer, the leading AI security company protecting enterprises from adversarial machine learning and emerging AI-driven threats, today released its 2026 AI Threat Landscape Report, a comprehensive analysis of the most pressing risks facing organizati
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Report
HiddenLayer Selected as Awardee on $151B Missile Defense Agency SHIELD IDIQ Supporting the Golden Dome Initiative
/PRNewswire/ -- HiddenLayer, the leading provider of Security for AI, today announced it has been selected as an awardee on the Missile Defense Agency
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Report
HiddenLayer Announces AWS GenAI Integrations, AI Attack Simulation Launch, and Platform Enhancements to Secure Bedrock and AgentCore Deployments
HiddenLayer, the leading AI security platform for agentic, generative, and predictive AI applications, today announced expanded integrations with Amazon Web Services (AWS) Generative AI offerings and a major platform update debuting at AWS re:Invent 2025.
Read more
Report
HiddenLayer Announces AWS GenAI Integrations, AI Attack Simulation Launch, and Platform Enhancements to Secure Bedrock and AgentCore Deployments
/PRNewswire/ -- HiddenLayer, the leading AI security platform for agentic, generative, and predictive AI applications, today announced expanded integrations...
Read more
Report
Report
EchoGram: Bypassing AI Guardrails via Token Flip Attacks
HiddenLayer unveils EchoGram, a new attack technique that manipulates AI guardrails protecting LLMs like GPT-4, Claude, and Gemini.
Read more
Report
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Tech stack
Technologies named in job postings at HiddenLayer over the last 12 months, by layer, with the share of postings for each.
Technologies in use
39
Postings analysed
17
Stack modernity
77/100AI adopter
Languages
Python29%
Bash6%
Go6%
Java6%
Frameworks & libraries
LangChain18%
LangGraph18%
AutoGen6%
OpenAI Agents SDK6%
Cloud & platforms
Kubernetes24%
AWS18%
Azure12%
GitHub6%
AI & ML
LLM6%
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Full HiddenLayer tech stack
39 technologies · by team · pay by technology · changes · similar stacks
People
James Ballard
Executive Officer
Tanner Burns
Executive Officer
Christopher Sestito
Executive Officer, Director
Todd Weber
Director
Mark Hatfield
Director
Todd Graham
Director
Joshua Lemos
Director
Alan Freedman
Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data
Growth
Hiring Momentum
83/100
Scaling fast
Open positions
16
6 opened / 5 closed in 30 days
Median time-to-fill
47 days
faster than 29% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Marketing
31% ▲
Sales
15% ▼
Solutions
15% ▲
AI/ML
8% ▼
Security
8% ▲
Leadership
8% ▼
Actively hiring for Marketing (+4 in 30 days)
Activity Timeline
New location: Seattle
Oct 2026
New location: Nashville
Oct 2026
New location: Denver
Oct 2026
New location: United Kingdom
Oct 2026
New location: West
Sep 2026
Added ITIL to stack
Sep 2026
Added Microsoft Office to stack
Sep 2026
Added Linux to stack
Sep 2026
Added OWASP to stack
Sep 2026
Added Machine Learning to stack
Sep 2026
Added Agile to stack
Sep 2026
Added Tool Use to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
Austin
United States
HQ
200-500 est. staff
Jobs
≈ $114k – $210k per year (Estimated) • Remote (United States) • Secret • 5+ years exp
Apache Kafka
OpenSearch
DevOps
Terraform
Helm
GitHub Actions
Loki
Prometheus
Azure
CI/CD
ArgoCD
AWS
Kubernetes
Grafana
Amazon EKS
Azure AKS
Linux
DNS
Cybersecurity
NIST 800-53
FedRAMP
SBOM
SLSA
Apply
≈ $83k – $148k per year (Estimated) • Remote (United Kingdom) • United Kingdom
Python
Bash
LangGraph
LangChain
DevOps
CI/CD
Kubernetes
Linux
Apply
≈ $165k – $327k per year (Estimated) • Remote (United States)
Python
Docker
Kubernetes
Apply
≈ $87k – $155k per year (Estimated) • Remote (United Kingdom) • United Kingdom
Python
LangGraph
LangChain
DevOps
GCP
Azure
AWS
Docker
Kubernetes
Apply
≈ $124k – $260k per year (Estimated) • Remote (United States) • Bachelor's Degree
AI Agents
Machine Learning
Management
Agile
Apply
≈ $132k – $252k per year (Estimated) • Remote (United States) • Top Secret • 5+ years exp
Python
Computer Vision
AI Agents
GGUF
ONNX
Safetensors
PyTorch
LLM
Hugging Face
NIST AI RMF
Machine Learning
DevOps
OpenShift
Helm
VMWare
Azure
CI/CD
AWS
Docker
Kubernetes
Proxmox VE
GitHub
Cybersecurity
OWASP Top 10
Apply
≈ $130k – $249k per year (Estimated) • Remote (United States)
Python
Bash
LangGraph
LangChain
DevOps
CI/CD
Kubernetes
Linux
Apply
Financials
Total raised
$158.1M
Latest round
Venture - Series Unknown
Funding rounds
6