Eisner is trying to give small businesses access to coordinated security by making it easier for their managed service providers to deliver it.
Dor Eisner is the co-founder and CEO of Guardz, a cybersecurity company built around managed service providers and their small-business clients. His background in threat intelligence and security operations includes work as a founding executive at IntSights before its acquisition by Rapid7.
Threat Intelligence Before Guardz
In an interview with Pulse 2.0, he described more than two decades working in cybersecurity and recalled learning about the evolving threat landscape, including dark-web activity, at IntSights. He was a founding executive there, a distinction from being a co-founder of that company.
He brought that experience to a different delivery problem: small businesses facing sophisticated threats without an internal security team, and service providers trying to protect many clients with disconnected tools.
Building Guardz for Service Providers
Guardz was built around MSPs, with a multi-client platform covering identities, endpoints, email, cloud environments, and data. The company’s leadership page identifies Eisner as co-founder and CEO, alongside co-founder and CTO Alon Lavi.
“What drives me today is the opportunity to take that knowledge and make it actionable for Managed Service Providers (MSPs),” he told Pulse 2.0. His emphasis is on reducing the operational work needed to turn security tools into a service that smaller clients can use.
Combining Automation with Human Response
Under his leadership, Guardz has expanded from foundational controls into managed detection and response, combining automation with human threat hunting. His June 2025 financing essay described investment in integrations, compliance workflows, and round-the-clock response.
The same direction is visible in its newer browser-security offering: a partner’s protection is integrated into the MSP’s existing operating environment. Eisner’s public explanation of the business consistently connects security capability to the technicians responsible for using it.