TopHat Security Lands Series A to Build Digital Twins for Cyber Defense

ATLANTA, GA – August 19, 2026 – In a significant move for the operational technology (OT) security sector, TopHat Security, Inc. today announced the closing of its Series A financing round. The investment, led by Illinois-based investment advisory firm Landolt Securities, Inc., marks a critical commercialization milestone for the Atlanta-based cybersecurity firm. The new capital is earmarked to accelerate the development and deployment of its enterprise portfolio, which targets the increasingly vulnerable systems underpinning national critical infrastructure, government agencies, and the burgeoning field of artificial intelligence.

This funding round isn't just another transaction in the cybersecurity space; it represents a pivotal step in translating a sophisticated technological concept into a scalable, revenue-generating enterprise. For a company focused on protecting the physical world—from power grids and water treatment plants to industrial manufacturing lines—this infusion of capital provides the fuel needed to move from a promising prototype to a profitable market leader.

Bridging the Gap with Digital Battlegrounds

At the heart of TopHat Security’s strategy is its flagship platform, O-RANGE™. The technology addresses a dangerous and persistent gap in industrial cybersecurity: the inability to safely test defenses. While security teams are inundated with vulnerability alerts and threat intelligence feeds, applying patches or reconfiguring systems in a live OT environment is fraught with risk. An ill-conceived change could inadvertently shut down a power plant, disrupt a manufacturing process, or compromise physical safety.

O-RANGE circumvents this challenge by enabling organizations to create what the company calls “high-fidelity digital twins.” These are not mere network diagrams, but dynamic, detailed virtual replicas of entire operational environments, encompassing everything from industrial control systems and network relationships to specific firmware, software, and even the physical processes they manage. Within this secure, emulated environment, security teams can finally get their hands dirty. They can simulate sophisticated cyberattacks, rehearse complex kill chains, validate the effectiveness of a patch before deployment, and evaluate remediation strategies without introducing a single point of risk to live, mission-critical operations.

“Critical infrastructure organizations are receiving more vulnerability information than ever, but they often lack a safe and practical way to understand what those vulnerabilities mean to their actual operations,” said Matt Caldwell, Founder and CEO of TopHat Security, in the company's announcement. “O-RANGE gives teams a realistic environment in which they can test an investigation, remediation, or attack scenario before making changes to a live facility.” This capability shifts the paradigm from reactive, and often risky, patching to proactive, evidence-based resilience building.

An Investor's Bet on National Security

The decision by Landolt Securities to lead the Series A round is particularly noteworthy. As a full-service investment firm founded in 1989 with a broad portfolio, Landolt is not a typical Silicon Valley venture capital fund that exclusively chases high-growth tech. Their leadership in this financing signals a wider market recognition that OT security has transcended its niche and is now a fundamental component of national and economic security, attracting a more diverse class of investors.

The undisclosed funding amount will allow TopHat Security to scale its customer delivery and expand its product suite, crucial steps in achieving commercial viability. For Landolt, the investment is a clear bet on both the technology and the team behind it.

“We are firm believers in the direction TopHat Security is taking,” noted Don McKiernan, Principal at Landolt Securities. “Protecting government systems and critical infrastructure—and securing the AI infrastructure that will increasingly support them—is paramount to national security. We have been impressed by the technology, intellectual property, and speed of execution TopHat Security has demonstrated.”

Mentioning the company's “speed of execution” points directly to the tangible progress that investors look for when moving a company from its developmental phase toward profitability. It suggests TopHat has effectively navigated early technical and market challenges, building confidence that it can convert this new capital into sustained growth and market share.

Confronting the Convergence of OT and AI Threats

While O-RANGE is the headliner, TopHat Security’s vision extends beyond simulation. The company is building a comprehensive portfolio that includes solutions for industrial network visibility, asset discovery, and cyber supply-chain security. Crucially, it also explicitly targets the protection of AI infrastructure, a forward-looking strategy that places it at the forefront of an emerging threat landscape.

As AI becomes more integrated into the command-and-control functions of critical infrastructure—optimizing power grids, managing logistics, and automating industrial processes—the AI systems themselves become high-value targets. A compromised AI model could be far more devastating than a traditional malware infection. Adversaries could poison training data to cause subtle but catastrophic failures or launch attacks that trick an AI into making dangerous operational decisions. Securing this convergence of OT and AI requires a holistic approach that understands how a digital threat can manifest as a physical consequence.

By addressing AI infrastructure protection now, TopHat Security is not just solving today's problems but is positioning itself as an essential partner for the next generation of industrial technology. This strategic foresight is a key differentiator in a crowded cybersecurity market and a critical element for long-term commercial success.

From DEF CON to Commercial Deployment

Underscoring its technical credibility, TopHat Security recently made a notable appearance at DEF CON 34, one of the world's most prominent cybersecurity conferences. CEO Matt Caldwell took the stage in the highly respected ICS Village to present findings from a project that scanned millions of internet-exposed industrial control systems. Such a presence does more than just showcase expertise; it builds a reputation within the deeply technical community that often serves as the gatekeeper for new security technologies.

This journey—from presenting research to the hacker community to securing institutional funding to deploy enterprise-grade solutions—is the very essence of the path from prototype to profit. With its Series A funding secured, TopHat Security is now armed with the resources to transition from a company with a powerful idea to a commercial force capable of defending the systems on which the nation depends.