Ergo is Ireland's largest privately-owned IT services provider, founded in 1993 and now operating as part of Presidio since 2024 while maintaining its brand alongside subsidiaries Micromail and BoatyardX. The company's cybersecurity practice sits within a broader portfolio that spans managed services, cloud infrastructure, digital solutions, and license management - meaning security teams here work adjacent to the infrastructure and operations layers, not in isolation. That proximity matters: threat models in financial services, public sector, life sciences, and pharmaceuticals demand integrated thinking, not siloed tooling.
The firm serves over 2,275 customers across Ireland, the US, New Zealand, Colombia, and Romania. Its Microsoft credentials are substantive - five Country Partner of the Year awards in the past decade and an Ireland Azure Partner of the Year award - indicating deep alignment with Azure security tooling and cloud-native defense stacks. For cybersecurity practitioners, this means working within environments where identity management, cloud posture, and endpoint detection are baked into the delivery model from the start.
Ergo was founded by John Purdy, a former EY Industry Entrepreneur of the Year award winner, starting as a two-person operation before scaling into a multi-subsidiary group. The cybersecurity offering is one of five core technical domains, which suggests the practice has organizational weight but must also integrate tightly with the managed services and cloud teams to deliver coherent outcomes across regulated verticals.
