Hilt, a cybersecurity startup developing real-time data security technology, has raised $4.2 million in seed funding to expand its team, advance product development and grow its presence in the enterprise security market.
The round was led by Array Ventures, with participation from Verdict Capital, Base10 Partners, Brickyard, Liquid 2 Ventures, Sequel, the Sarah Smith Fund and Alumni Ventures. The latest investment brings Hilt’s total funding to $4.7 million, including a $500,000 pre-seed round led by Pear VC in October 2025.
Hilt is building software that monitors how data moves across cloud infrastructure, computer systems and networks. Its technology aims to identify unusual activity in real time, including potential security threats that may not trigger traditional security alerts.
The company plans to use the new funding to hire employees, improve its platform and expand into industries that manage sensitive information.
What Does Hilt Do?
Traditional cybersecurity systems often look for known attack patterns, suspicious login attempts or other signs of unauthorized access. However, some threats involve legitimate users, trusted vendors or automated systems that already have permission to access company resources.
Hilt aims to address this challenge by monitoring data movement and identifying behavior that differs from normal activity.
Its platform builds behavioral baselines for users, systems and resources across an organization’s infrastructure. When activity deviates from those patterns, the software can alert security teams or quarantine suspicious activity.
The company says its approach can help organizations detect potential insider threats and other security risks, including activity involving compromised accounts or connected third-party systems.
Hilt is emerging from stealth as demand grows for security solutions that can monitor increasingly complex cloud environments without disrupting business operations.
How Hilt’s Technology Works
Hilt’s platform operates at the kernel level, below the application layer, to monitor activity across enterprise systems.
The company uses lightweight collectors that gather metadata about data movement across private cloud environments, networks and endpoints. According to Hilt, this allows its software to observe system activity without needing to collect the underlying content of files or communications.
The platform uses graph neural networks (GNNs) to analyze relationships and patterns in the observed activity. These models help establish what normal data movement looks like and identify behavior that may require further investigation.
For example, a company employee might have legitimate access to a database but suddenly begin moving data in a way that differs from their usual activity. Hilt aims to identify that change even if the employee’s account has not triggered a conventional access-control alert.
The company also targets environments where system performance is critical. Its software is designed to monitor activity with minimal disruption, an important consideration for financial firms and other businesses that depend on fast-moving systems.
From High-Frequency Trading to Broader Enterprise Security
Hilt initially focused on high-frequency trading firms, where security systems must operate in environments with strict performance requirements.
Founder and CEO William Cielen said a conversation with the chief technology officer of a large hedge fund in January helped clarify the company’s product opportunity. According to the reported account, the potential customer offered a contract worth $1 million to $2 million and paid a six-figure amount upfront before the solution had been built.
Hilt continues to work with that customer and has added another high-frequency trading firm, Cielen said.
The startup is now exploring opportunities in other sectors, including neobanks, healthcare and professional services. These industries handle sensitive information and often operate complex infrastructure that requires close monitoring.
Cielen also said the company’s customer count doubled in the month after it increased its go-to-market efforts. The company has not disclosed detailed revenue figures or a full breakdown of its customer base.
Hilt has 11 employees, including co-founder and Chief Technology Officer Alex Genest and founding engineer Zin Bitar. The company has also relocated from San Francisco to Chattanooga, Tennessee, as it works toward product-market fit.
Why Investors Are Backing Hilt
Array Ventures led the seed round, joined by several other investors focused on technology and startups.
Array Ventures General Partner Shruti Gandhi said Hilt addresses security risks involving valid employee access, connected vendors and AI agents. These situations can be difficult to detect because the activity may appear legitimate to conventional security systems.
Verdict Capital founder Niko Bonatsos also highlighted Hilt’s kernel-level approach, particularly for financial environments where system latency is a major concern.
The investment reflects interest in cybersecurity tools that can detect threats based on how systems behave, rather than relying only on known attack signatures or access violations.
As organizations adopt more cloud services, connect additional vendors and deploy AI agents, security teams face a growing challenge: distinguishing normal activity from behavior that could expose sensitive data.
Hilt aims to provide an additional layer of visibility into those interactions.
How Hilt Plans to Use the Funding
Hilt will use the $4.2 million seed investment to expand its team, accelerate product development and strengthen its market presence.
Hiring will be important as the company develops its technology and supports deployments across different enterprise environments. The startup also needs to demonstrate that its platform can work reliably across varied infrastructure while maintaining the performance required by its target customers.
Expanding beyond high-frequency trading firms could create additional opportunities, but Hilt will need to adapt its product and sales approach to the needs of different industries.
Its ability to demonstrate measurable security benefits, reliable deployment and consistent customer demand will be important as it scales.
What Comes Next for Hilt?
Hilt enters its next growth stage with $4.7 million in total funding and an initial customer base in high-frequency trading.
The company is betting that monitoring data movement at the kernel level can help organizations identify threats that conventional security tools may overlook, particularly when suspicious activity comes from users or systems with legitimate access.
Its next challenge is to turn early customer interest into broader adoption across financial services, healthcare and other data-sensitive industries.
If Hilt can demonstrate effective threat detection without compromising system performance, it could establish a role in enterprise security. However, its long-term growth will depend on customer adoption, product reliability and its ability to compete in an established cybersecurity market.
About Hilt
Hilt is a cybersecurity startup developing a real-time data movement monitoring and governance platform. Its software uses kernel-level monitoring and graph neural networks to identify unusual activity across cloud infrastructure, networks and endpoints.
Founded by CEO William Cielen, alongside co-founder and CTO Alex Genest and founding engineer Zin Bitar, the company is targeting financial services and other industries that manage sensitive data.
Hilt raised $4.2 million in seed funding led by Array Ventures, bringing its total funding to $4.7 million.
