Mesh Security raises $12M Series A to bring cybersecurity mesh to enterprise scale

Enterprise security teams have spent years buying best-of-breed tools across identity, endpoints, cloud, SaaS, data, and networks. The spending worked. The system didn’t. What emerged instead was a sprawl of disconnected tools, scattered data, and operations that struggle to act as one. Mesh Security believes that gap, not tooling, is the real risk surface.

The Palo Alto–based cybersecurity startup has raised a $12 million Series A round led by Lobby Capital, with participation from S Ventures, the corporate venture arm of SentinelOne, and BrightPixel Capital. The funding marks a push to turn cybersecurity mesh from an architectural idea into something enterprises can actually run day-to-day.

Mesh positions itself as the execution layer that sits above existing security investments. Rather than replacing tools or deploying agents, the platform connects identity, endpoint, cloud, SaaS, network, and CI/CD environments into a single operating model. The goal is simple: make security act like a system, not a collection of dashboards.

With $12M in funding, cybersecurity startup Mesh Security targets fragmented enterprise security stacks

Over the past decade, security stacks grew deeper and more specialized. Each product improved its own domain, yet exposure continued to rise. Mesh was built to address that structural failure by giving security teams shared visibility, shared context, and shared control across environments that traditionally operate in silos.

The approach aligns with Cybersecurity Mesh Architecture, or CSMA, a framework popularized by Gartner that calls for decentralized controls unified through shared policy and intelligence. Many enterprises agree with the direction. Fewer know how to put it into practice. Mesh is betting that execution, not architecture diagrams, is what’s missing.

“For years, enterprise security has accumulated tools and data, but it never built an execution layer that connects them into a single operating model,” said Netanel (Neo) Azoulay, CEO and co-founder of Mesh Security. “Mesh was built to realize Cybersecurity Mesh by unifying context and control across best-of-breed environments, so security finally works as one system, without vendor lock-in.”

The timing reflects a broader shift in how security leaders are measured. Boards now expect proof that risk is shrinking, money is being spent wisely, and response time keeps pace with real threats. Tool counts no longer impress. Outcomes do. That pressure has pushed security teams to seek platforms that can coordinate actions across existing investments rather than adding more layers on top.

Mesh says its platform is already running in complex production environments, working alongside major security vendors to identify exposure paths that span multiple domains and trigger remediation at the system level. SentinelOne is one of the platforms Mesh integrates with, and early enterprise users say the value lies in clarity and follow-through.

“Mesh provides a clear way to understand where a security program stands,” said Bradley Schaufenbuel, VP and CISO at Paychex. “It helps identify the critical gaps that actually matter and drives the process of closing them. What stands out is that it doesn’t require replacing existing tools; it’s designed to make the security stack work as one system.”

Lobby Capital sees that execution layer as the core differentiator. “We’re thrilled to lead this investment in Mesh Security, as they pioneer the future of unified security operations and CSMA security,” said Buddy Arnheim, founding partner at Lobby Capital. “Mesh’s platform is uniquely positioned to help enterprises achieve true cybersecurity mesh architecture in an era of increasing complexity.”

The new funding will go toward advancing Mesh’s autonomous, agentic capabilities, with a focus on reasoning across cross-domain attack paths and enabling system-level remediation. The company also plans to scale sales and customer support as enterprise demand grows.

Mesh’s pitch is clear. Security teams don’t need more alerts. They need systems that act. The company’s next phase centers on that idea: moving security from observation to execution and turning fragmented stacks into a single defense system.

Mesh Security Founders