
Patrick O’Brien
Chief Executive Officer
Leads IEN’s consultancy, bringing together IT strategy, enterprise architecture and infrastructure delivery.
LinkedIn profile →About IEN
IEN Limited provides IT strategy, enterprise architecture and infrastructure consultancy for enterprise teams and growing businesses.
Our work connects business priorities with the architecture, services and suppliers needed to support them. We help clients understand their current position, make decisions and plan or deliver change.
Engagements range from IT spending and strategy reviews to infrastructure transformation and support for mergers, acquisitions and separations.
Our people

Chief Executive Officer
Leads IEN’s consultancy, bringing together IT strategy, enterprise architecture and infrastructure delivery.
LinkedIn profile →

IT & Network Specialist
IT and network specialist within the IEN team.
LinkedIn profile →
IT & Network Specialist
IT and network specialist within the IEN team.

Technology experience
Our infrastructure and network work includes Cisco and Microsoft technologies. Technology references describe experience, not a claim of current partner status.
Your next step
Tell us what needs to change. We can discuss the context, the decisions ahead and where independent support could help.