Case Study: Costain Group achieves full Active Directory visibility and streamlined IT operations with Netwrix Auditor

Costain Employs Netwrix Auditor to Improve Interaction Between In-House and Outsourced IT Teams

Costain, a leading UK engineering solutions provider with roughly 5,000 users and a six-person in-house IT team, faced growing complexity from hundreds of concurrent projects and frequent changes to user roles, permissions and group memberships in Active Directory. With day-to-day AD administration handled by outsourced providers, Costain lacked continuous visibility into admin-level changes, increasing the risk of misconfigured accounts, interrupted access to projects and weakened security posture.

Costain deployed Netwrix Auditor for Active Directory to gain non‑intrusive, detailed visibility into who made what changes, when and where, plus before-and-after values, reports, dashboards and real‑time alerts. The solution enabled faster detection and investigation of policy violations, disciplined outsourced providers, helped streamline AD management and root-cause workflows, and saved the team roughly 50 hours of work while improving control and confidence in access management.

Costain Group

Nick Pettingell

IT Infrastructure Specialist