HiddenLayer in the News
See how our research, leadership, and innovations are shaping the global conversation on AI security.


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HiddenLayer Raises $100M Series B to Advance Trustworthy AI
HiddenLayer raises $100M in Series B funding to advance AI security, expand agentic runtime protection, and meet growing enterprise demand.
The investment comes as enterprises race to secure a rapidly expanding AI attack surface, from foundation models to the autonomous agents now writing and shipping code on their behalf.
September 2, 2026 – Austin, TX – HiddenLayer, the leading AI security company that secures agentic, generative, and predictive AI applications, today announced a $100 million Series B funding round led by Delta-v Capital, with participation from Ten Eleven Ventures, Morgan Stanley, M12, Microsoft's Venture Fund, and Booz Allen Ventures.
The company will 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.
"We set out to pioneer trusted, secure use of AI for enterprises, long before most organizations saw the urgency we do today. This funding lets us keep growing the purpose-built team and platform required to meet that moment as agentic AI becomes core to how enterprises operate,” said Chris Sestito, CEO and Co-Founder of HiddenLayer.
The raise follows a standout year: HiddenLayer's annual recurring revenue grew more than 10x, and the company signed more than 50 new platform customers, including some of the largest names in securities brokerage, banking, insurance, accounting, government, technology, IT services, pharmaceuticals, airlines, and the US defense and intelligence communities. Internationally, new customers included one of the world's largest pharmaceutical companies, along with several premium automotive brands and food and beverage providers. HiddenLayer also supports a leading frontier model provider in securing more than 700 million weekly users.
This growth is underpinned by a world-class research team that has directly influenced how leading organizations protect their AI systems. HiddenLayer's researchers hold 39 granted patents and 65 pending patents spanning adversarial detection, model protection, and AI threat analysis. The team developed the first comprehensive Adversarial Prompt Engineering (APE) Taxonomy and continues to research emerging threats across generative, predictive, and agentic AI, identifying dozens of vulnerabilities across the AI ecosystem, from foundation models to the tools and infrastructure that support them. HiddenLayer's researchers also contribute to the broader AI security community through work with organizations and initiatives including CISA/JCDC, MITRE, NIST, OWASP, and OpenSSF, improving red teaming methodologies and informing global discussions on AI governance and safety.
"Traditional security tools were built for code and infrastructure, not for models that can be poisoned, hijacked, or manipulated through their own inputs,” said Dan Williams, Partner at Delta-v Capital. "HiddenLayer built a platform from the ground up to secure AI across its full lifecycle, from the model at its core to the agentic systems being layered on top and whatever architecture comes next. We’ve watched this team turn deep adversarial-AI research into a product CISOs actually rely on, and we're proud to partner with them."
The funding allows HiddenLayer to focus on the three fronts where enterprises are most exposed: Agentic Runtime Security, giving organizations visibility into how their AI agents behave in production, flagging and stopping manipulation, tool misuse, and unauthorized actions as they happen, and securing Agentic Harnesses and Autonomous Coding Agents that write, review, and ship code with much less human oversight than traditional development tools. As AI cannot be made trustworthy through design-time principles alone, there is no trustworthy AI without end-to-end AI-native security. Trust has to be continuously tested and proven at runtime. These capabilities are designed to give enterprises the confidence to trust their AI, with 96% of organizations already considering AI critical to their core operations, but nearly a third unable to say with certainty whether they've experienced an AI-related breach, according to HiddenLayer’s 2026 AI Threat Landscape Report.
“Enterprises don't shift budgets at this pace unless a problem is urgent. HiddenLayer's growth over the past year across defense, financial services, and some of the most sensitive AI deployments in the world demonstrates that security teams have concluded that AI needs its own category of protection,” said Mark Hatfield, Co-Founder and Partner at Ten Eleven Ventures. “We expect that conviction to continue to grow as autonomous systems become more and more integral to the enterprise."
“HiddenLayer was early to recognize that enterprise security is critical to the safe deployment of AI, and its buildout of an end-to-end platform to enable compliant AI adoption is an important contribution to addressing this market need,” said Zheng Wang, Head of Strategic Investments at Morgan Stanley. “We are delighted to be investing in HiddenLayer to foster its next phase of growth and innovation.”
HiddenLayer is also strengthening its leadership team, recently naming Mike Gesnaldo as Chief Revenue Officer. More hires are on the way as the company deepens its channel relationships, keeps pace with enterprise customer demand, and pushes further into international markets, beginning with Europe and the wider EMEA region.
About HiddenLayer
HiddenLayer secures agentic, generative, and predictive AI applications across the entire AI lifecycle, from discovery and AI supply chain security to attack simulation and runtime protection. Backed by patented technology and industry-leading adversarial AI research, our platform is purpose-built to defend AI systems against evolving threats. HiddenLayer protects intellectual property, helps ensure regulatory compliance, and enables organizations to safely adopt and scale AI with confidence.
About Delta-v Capital
Delta-v Capital (“Delta-v”) partners with visionary leaders of technology companies to accelerate their next phase of growth. Delta-v is a sector-focused investor with expertise in infrastructure software, cloud services, vertical software, and digital infrastructure. The firm provides flexible growth capital to support organic growth, strategic acquisitions, and shareholder liquidity, partnering with management teams and existing investors as companies scale. Delta-v currently manages over $1.6B in assets on behalf of institutional and individual investors. For more information, please visit www.deltavcapital.com or follow Delta-v Capital on LinkedIn.
Contact
SutherlandGold for HiddenLayer
hiddenlayer@sutherlandgold.com

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HiddenLayer Recognized as a Gartner Cool Vendor for AI Security in 2024
HiddenLayer’s proactive solutions ensure organizations can rely on comprehensive and resilient AI systems in an era of accelerated AI adoption. Gartner's recognition underscores the company’s expertise and leadership in the AI security space, setting a benchmark for the industry as enterprises increasingly turn to cutting-edge solutions to protect sensitive AI systems and data.
Austin, TX – October 30, 2024 – HiddenLayer, a leader in security for AI solutions, is honored to be recognized as a Cool Vendor for AI Security in Gartner’s 2024 report. This prestigious distinction highlights HiddenLayer's innovative approaches to safeguarding artificial intelligence models, data, and workflows against a rapidly evolving threat landscape.
HiddenLayer’s proactive solutions ensure organizations can rely on comprehensive and resilient AI systems in an era of accelerated AI adoption. Gartner's recognition underscores the company’s expertise and leadership in the AI security space, setting a benchmark for the industry as enterprises increasingly turn to cutting-edge solutions to protect sensitive AI systems and data.
“Being named a Gartner Cool Vendor for AI Security validates our vision and the critical work our team has undertaken to provide organizations with sophisticated tools that address real-world AI threats,” said Chris Sestito, CEO of HiddenLayer. “This acknowledgment strengthens our commitment to staying ahead of adversarial attacks and ensuring safe AI deployment for our clients and partners.”
HiddenLayer’s innovative solutions encompass capabilities tailored to address unique security challenges in machine learning and artificial intelligence. HiddenLayer empowers businesses to fortify their AI assets without compromising on performance or innovation by focusing on AI integrity and model protection.
The Cool Vendor recognition reinforces HiddenLayer’s momentum as a leader in AI security, following recent achievements such as receiving the SINET16 Innovators award and being recognized as an AI Standout at the A-List Austin awards. These honors reflect HiddenLayer's continued dedication to advancing AI security standards and ensuring secure AI adoption on a global scale.
For organizations looking to safeguard their AI models and tools, HiddenLayer offers an unparalleled solution grounded in resilience and adaptability to modern security demands.
About HiddenLayer
HiddenLayer is the leading provider of Security for AI. Its security platform helps enterprises safeguard the machine learning models behind their most important products. HiddenLayer is the only company to offer turnkey security for AI that does not add unnecessary complexity to models and does not require access to raw data and algorithms. Founded by a team with deep roots in security and ML, HiddenLayer aims to protect enterprise AI from inference, bypass, extraction attacks, and model theft. The company is backed by a group of strategic investors, including M12, Microsoft's Venture Fund, Moore Strategic Ventures, Booz Allen Ventures, IBM Ventures, and Capital One Ventures.
Contact
Maia Gryskiewicz
SutherlandGold for HiddenLayer
hiddenlayer@sutherlandgold.com

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HiddenLayer Announces New Features to Safeguard Enterprise AI Models with Improved Risk Detection
HiddenLayer today announced the launch of several new features to its AISec Platform and Model Scanner, designed to enhance risk detection, scalability, and operational control for enterprises deploying AI at scale. As the pace of AI adoption accelerates, so do the threats targeting these systems, necessitating security measures that stay ahead of increasingly sophisticated adversaries. These updates to HiddenLayer’s platform allow organizations to deploy AI models more securely across diverse environments while mitigating critical risks.
Austin, TX – October 8, 2024 – HiddenLayer today announced the launch of several new features to its AISec Platform and Model Scanner, designed to enhance risk detection, scalability, and operational control for enterprises deploying AI at scale. As the pace of AI adoption accelerates, so do the threats targeting these systems, necessitating security measures that stay ahead of increasingly sophisticated adversaries. These updates to HiddenLayer’s platform allow organizations to deploy AI models more securely across diverse environments while mitigating critical risks.
“It’s vital that security providers keep pace with the bad actors–especially in enterprise environments, where we bear the responsibility of safeguarding our customers’ most critical assets,” said Chris Sestito, CEO and Co-Founder of HiddenLayer. “These new capabilities increase risk detection across the board and enable us to better serve and protect customers with more flexible and scalable options.”
AISec Platform: Enterprise-Ready Security and User Management
In addition to enhanced detection capabilities, HiddenLayer’s AISec Platform, which provides detection and response for AI models, is now equipped with advanced tools for managing large-scale enterprise deployments. These include comprehensive user management features and secure integration with existing enterprise infrastructure:
- User Management: Enterprises can now easily manage tenant users, including creating, editing, and deleting user accounts. This capability strengthens internal control and access management across large organizations.
- SAML SSO: A fully integrated Single Sign-On (SSO) and Role-Based Access Control (RBAC) experience ensures administrators can securely and efficiently assign roles and permissions. The SSO integration further enhances enterprise readiness by streamlining access for larger teams.
Enterprises are facing increased pressure to adopt AI technologies while simultaneously navigating a growing landscape of digital threats. HiddenLayer’s new features allow companies to confidently scale their AI initiatives without sacrificing security or efficiency, providing a competitive edge in industries where trust and innovation are key.
“The security frameworks established by organizations like ATLAS and NIST are invaluable resources—some of which we’ve had the privilege to help shape. By integrating well-established security frameworks into our solutions, we’re able to provide even stronger, more adaptable protection to our customers. In a world where AI plays a crucial role in day-to-day business operations, safeguarding these models is mission-critical.” said Malcolm Harkins, Chief Security & Trust Officer of HiddenLayer.
Model Scanner: Increased Scalability and Risk Detection
As AI continues to become an integral part of the digital supply chain, enterprises must ensure that every component of AI-driven systems is secure from development to deployment. HiddenLayer’s Model Scanner reduces the risk of adversarial attacks, with new updates offering enhanced deployment options and seamless integration into continuous integration/continuous deployment (CI/CD) pipelines.
Introducing Model Risk Context: Heightened Detection Risk Context
These updates include Model Risk Context, which enhances the depth of risk detection by mapping identified threats to widely recognized industry frameworks such as OWASP, ATLAS, and NIST. This level of visibility equips organizations with a holistic understanding of potential risks, enabling them to make informed security decisions based on the risk profile of AI models. Other updates include:
- Static Analysis Results Interchange Format (SARIF): The platform now outputs SARIF from its API, allowing integration with tools like GitHub Advanced Security that support the Static Analysis Results Interchange Format (SARIF).
- Local Model Scanning: Users can now conduct ad-hoc scans on local models, offering greater flexibility for proprietary or offline AI assets.
- CLI Object Storage Support: This feature allows enterprises to scan models stored in AWS S3 and Azure Blob, enhancing versatility for organizations operating across multiple cloud environments.
With new integrations such as JFrog Artifactory and GitHub Actions, and the ability to scan models directly from the terminal, the Model Scanner ensures that security is embedded into every phase of AI development. Enterprises using Google Cloud Platform (GCP) can also benefit from a fully self-hosted deployment option, giving them complete control over their AI security infrastructure.
HiddenLayer’s platform signals a fundamental shift in how enterprises secure their AI environments. With risk detection that maps to industry standards, seamless integration into existing workflows, and tools for flexible deployment, HiddenLayer is setting the new standard for AI security. To see how HiddenLayer's Security for AI solutions can protect your enterprise, visit the Microsoft Azure Marketplace or explore our latest Product Blog.

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HiddenLayer Announces Mike Bruchanski as Chief Product Officer
“Mike’s breadth of experience across the B2B enterprise software lifecycle will be critical as HiddenLayer executes on its mission to protect the machine learning models behind today’s most important products,” said Chris Sestito, CEO and Co-founder of HiddenLayer. “His expertise will play a key role in accelerating our product roadmap and enhancing our ability to defend enterprises’ AI models against various threats.”
Austin, TX - August 27, 2024 – HiddenLayer today announced the appointment of Mike Bruchanski as Chief Product Officer. Bruchanski brings over two decades of product and engineering experience to HiddenLayer, where he will drive the company’s product strategy and pipeline, and accelerate its mission to support customers’ adoption of generative and predictive AI.
“Mike’s breadth of experience across the B2B enterprise software lifecycle will be critical as HiddenLayer executes on its mission to protect the machine learning models behind today’s most important products,” said Chris Sestito, CEO and Co-founder of HiddenLayer. “His expertise will play a key role in accelerating our product roadmap and enhancing our ability to defend enterprises’ AI models against various threats.”
Bruchanski joins HiddenLayer from Elementary, where he was Vice President of Product, driving the advancement of the company's offerings and market growth. Previously, he held similar roles at Blue Lava, Inc., where he shaped the product vision and strategy, and at Cylance, where he managed the company’s portfolio of OEM products and partners.
With a strong foundation in engineering, holding degrees from Villanova University and Embry-Riddle Aeronautical University, Mike combines a technical background with experience in scaling organizations’ product strategies. His leadership will be invaluable as HiddenLayer continues to innovate and protect AI-driven systems.
“The acceleration of AI has introduced new vulnerabilities and risks in cybersecurity. I’m excited to join the talented team at HiddenLayer to develop solutions that meet the complex challenges facing enterprise customers today,”
said Bruchanski.
About HiddenLayer
HiddenLayer is the leading provider of security for AI. Its security platform helps enterprises safeguard the machine learning models behind their most important products. HiddenLayer is the only company to offer turnkey security for AI that does not add unnecessary complexity to models and does not require access to raw data and algorithms. Founded by a team with deep roots in security and ML, HiddenLayer aims to protect enterprise AI from inference, bypass, extraction attacks, and model theft. The company is backed by a group of strategic investors, including M12, Microsoft’s Venture Fund, Moore Strategic Ventures, Booz Allen Ventures, IBM Ventures, and Capital One Ventures.

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HiddenLayer Joins the Coalition for Secure AI
“AI has never been easier to develop, use, and implement within organizations. As deployment continues to surge, so does the need to adopt common security standards and best practices in AI security,” said Malcolm Harkins, Chief Security & Trust Officer, HiddenLayer. “HiddenLayer is proud to join the CoSAI in our shared mission to support the widespread adoption of AI security principles.”
Austin, TX - August 06, 2024 – HiddenLayer today announced it has joined the Coalition for Secure AI (CoSAI), a new initiative aimed at tackling the cybersecurity risks associated with artificial intelligence (AI). Hosted by the OASIS global standards body, CoSAI is an open-source initiative designed to give all practitioners and developers the guidance and tools they need to create Secure-by-Design AI systems. HiddenLayer will be engaged in all of CoSAI’s priority initiatives, and an active part of its ecosystem to share open-source methodologies, standardized frameworks, and tools.
“AI has never been easier to develop, use, and implement within organizations. As deployment continues to surge, so does the need to adopt common security standards and best practices in AI security,” said Malcolm Harkins, Chief Security & Trust Officer, HiddenLayer. “HiddenLayer is proud to join the CoSAI in our shared mission to support the widespread adoption of AI security principles.”
The coalition’s initial focus will be on three main areas:
- Software supply chain security for AI systems: enhancing composition and provenance tracking to secure AI applications.
- Preparing defenders for a changing cybersecurity landscape: addressing investments and integration challenges in AI and classical systems.
- AI security governance: developing best practices and risk assessment frameworks for AI security.
Housed under OASIS Open, the international standards and open source consortium, CoSAI includes founding members such as Amazon, Anthropic, Chainguard, Cisco, Cohere, GenLab, IBM, Intel, Microsoft, NVIDIA, OpenAI, PayPal, and Wiz.
“As a founding member and co-chair of CoSAI, I am thrilled to have HiddenLayer join us,” said Omar Santos, Security & Trust Organization, Cisco Systems. “With HiddenLayer’s technical expertise and collaboration, we are eager to help organizations around the world to address emerging threats more effectively.”
For more information about CoSAI, visit https://www.coalitionforsecureai.org/.
About HiddenLayer
HiddenLayer is the leading provider of security for AI. Its security platform helps enterprises safeguard the machine learning models behind their most important products. HiddenLayer is the only company to offer turnkey security for AI that does not add unnecessary complexity to models and does not require access to raw data and algorithms. Founded by a team with deep roots in security and ML, HiddenLayer aims to protect enterprise AI from inference, bypass, extraction attacks, and model theft. The company is backed by a group of strategic investors, including M12, Microsoft’s Venture Fund, Moore Strategic Ventures, Booz Allen Ventures, IBM Ventures, and Capital One Ventures.

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HiddenLayer Joins Center for Threat-Informed Defense in Research Initiative to Secure AI Systems
HiddenLayer is proud to announce its participation in the Secure AI project, a new research initiative by the Center for Threat-Informed Defense. Through this collaborative project, HiddenLayer will advance its mission to protect AI-enabled systems by contributing technical expertise and resources to the MITRE ATLAS™.
HiddenLayer is proud to announce its participation in the Secure AI project, a new research initiative by the Center for Threat-Informed Defense. Through this collaborative project, HiddenLayer will advance its mission to protect AI-enabled systems by contributing technical expertise and resources to the MITRE ATLAS™.
"We are excited to be part of this project and contribute to the expansion of the ATLAS framework,” said Tom Bonner, Vice President of Research at HiddenLayer. “Community-driven knowledge bases like ATLAS are essential resources for securing AI-enabled systems and supply chains against attacks."
MITRE ATLAS is a knowledge base of adversarial machine learning tactics, techniques, and case studies designed to help cybersecurity professionals, data scientists, and their companies stay up to date on the latest attacks and defenses against adversarial machine learning. The ATLAS matrix is modeled after and complementary to the MITRE ATT&CK framework, which is well-known and used in the cybersecurity industry to understand attack chains and adversary behaviors.
HiddenLayer joins a diverse group of industry leaders from communications, finance, healthcare, and technology sectors, such as Microsoft Corporation, Booz Allen Hamilton, Intel, and JPMorgan Chase Bank, N.A., who are contributing their expertise and resources to develop this vital community resource.
The Secure AI project aims to:
- Expand the ATLAS knowledge base through incident sharing metrics and mechanisms.
- Document new case studies within ATLAS that address vulnerabilities in industry-relevant systems, including generative AI.
- Describe new relevant mitigations based on documented AI incidents.
- Align ATLAS tactics, techniques, and procedures (TTPs) with the current version of MITRE ATT&CK TTPs.
"We welcome HiddenLayer to the Secure AI project and know their deep expertise in AI model security research will be invaluable in enhancing the ATLAS and addressing the unique challenges posed by AI-enabled systems,” said Jon Baker, Director of the Center for Threat-Informed Defense.
HiddenLayer's participation in this initiative aligns with its core mission to secure AI models and contribute to collaborative research communities. By joining forces with MITRE and other industry leaders, HiddenLayer aims to bolster the defenses of AI systems globally.
For more information about the Secure AI research project, visit the Center for Threat-Informed Defense.
About HiddenLayer
HiddenLayer is the leading provider of security for AI. Its security platform helps enterprises safeguard the machine learning models behind their most important products. HiddenLayer is the only company to offer turnkey security for AI that does not add unnecessary complexity to models and does not require access to raw data and algorithms. Founded by a team with deep roots in security and ML, HiddenLayer aims to protect enterprise AI from inference, bypass, extraction attacks, and model theft. The company is backed by a group of strategic investors, including M12, Microsoft’s Venture Fund, Moore Strategic Ventures, Booz Allen Ventures, IBM Ventures, and Capital One Ventures.
About the Center for Threat-Informed Defense
The Center is a non-profit, privately funded research and development organization operated by MITRE Engenuity. The Center’s mission is to advance the state of the art and the state of the practice in threat-informed defense globally. Comprised of participant organizations from around the globe with highly sophisticated security teams, the Center builds on MITRE ATT&CK®, an important foundation for threat-informed defense used by security teams and vendors in their enterprise security operations. Because the Center operates for the public good, outputs of its research and development are available publicly and for the benefit of all.

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HiddenLayer Collaborates with Microsoft Azure AI to Enhance Model Security
"We strongly advocate for the parallel acceleration of AI innovation and security solutions," said Chris Sestito, CEO and Co-founder of HiddenLayer. "With the integration of our Model Scanner into the Azure AI catalog, we're dedicated to establishing a secure avenue for the broad adoption of AI technologies."
Microsoft Azure AI Deploys HiddenLayer Model Scanner to Protect Customers Using Open Source Models
Austin, TX - May 21, 2024 — HiddenLayer, the leading security provider for artificial intelligence (AI) models and assets, today announced Microsoft Azure AI as a new user of its Model Scanner. The Model Scanner will scan third-party and open-source models in the model collection curated by Azure AI, providing verification that they are free from cybersecurity vulnerabilities, malware, and other signs of tampering.
"We strongly advocate for the parallel acceleration of AI innovation and security solutions," said Chris Sestito, CEO and Co-founder of HiddenLayer. "With the integration of our Model Scanner into the Azure AI catalog, we're dedicated to establishing a secure avenue for the broad adoption of AI technologies."
Open-source models are favored for their affordability and flexibility, but they can be susceptible to malicious exploitation. By validating that open-source models have been scanned by Model Scanner, Azure AI can help security teams streamline AI deployment processes and empower development teams to fine-tune or deploy open models safely and with greater confidence.
“We see a need for proactive security solutions that allow developers to deploy AI models safely–and feel confident fine-tuning these models with their own proprietary data,” said Sarah Bird, Chief Product Officer of Responsible AI at Microsoft. “Integrating HiddenLayer into our model onboarding process is the validation that our customers need as they drive competitive differentiation with AI.”
HiddenLayer Model Scanner recognizes all major machine learning model formats and frameworks and analyzes their structure, layers, tensors, functions, and modules to identify suspicious or malicious code, vulnerabilities, and integrity issues. Key capabilities enabled by HiddenLayer in the Azure AI model catalog include:
- Malware Analysis: Scans AI models for embedded malicious code that could serve as an infection vector and launchpad for malware
- Vulnerability Assessment: Scans for common vulnerabilities and exposures (CVEs) and zero-day vulnerabilities targeting AI models
- Backdoor detection: Scans model functionality for evidence of supply chain attacks and backdoors such as arbitrary code execution and network calls
- Model Integrity: Analyzes an AI model’s layers, components and tensors to detect tampering or corruption
Read more about the benefits for Azure AI customers in the Microsoft Blog.
View HiddenLayer Model Scanner on the Microsoft Azure Marketplace.
About HiddenLayer
HiddenLayer is the leading provider of security for AI. Its security platform helps enterprises safeguard the machine learning models behind their most important products. HiddenLayer is the only company to offer turnkey security for AI that does not add unnecessary complexity to models and does not require access to raw data and algorithms. Founded by a team with deep roots in security and ML, HiddenLayer aims to protect enterprise AI from inference, bypass, extraction attacks, and model theft. The company is backed by a group of strategic investors, including M12, Microsoft's Venture Fund, Moore Strategic Ventures, Booz Allen Ventures, IBM Ventures, and Capital One Ventures.
Contact
Maia Gryskiewicz
SutherlandGold for HiddenLayer
hiddenlayer@sutherlandgold.com
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