About MacGregor
A cybersecurity and AI application engineering consultancy built on practitioner experience.
The Company
Founded in 2015
MacGregor Consulting was founded to bring enterprise-grade cybersecurity and AI application engineering expertise to organizations of all sizes, without the overhead of large consulting firms.
We specialize in security data platforms, AI-augmented analytics products, Microsoft security implementation, and vulnerability management. Our work spans from building security data lakes processing millions of events for Fortune 50 clients to helping growing businesses implement their first security controls.
How We Work
We operate as a lean firm with senior practitioners doing the work. No account managers, no project coordinators, no layers between you and the people building your solutions.
We use modern development practices and AI coding tools to deliver faster, building in weeks what traditionally takes months. Every engagement is direct, focused, and tailored to your environment.
Our background is in enterprise security operations. We've sat in your seat, and we understand what it takes to get things done in complex environments.
Founder
John Purdy
John has over 20 years of enterprise cybersecurity experience and a decade of platform and product development. He built his foundation in vulnerability management, incident response, and security infrastructure at Kroll and Marsh & McLennan Companies, where he managed a global vulnerability scanning program.
He went on to co-found visvm.io, a SaaS vulnerability analytics platform built on Azure, and has since focused MacGregor's practice on combining deep security domain expertise with production AI application engineering.
His current technical work centers on building production AI applications for security and compliance use cases, with an emphasis on reliability, auditability, and human-in-the-loop design. He works across multiple AI model providers and builds daily with frontier AI coding tools.