Case Study: AtkinsRéalis achieves a unified IT environment and boosted collaboration with Quest

Empowering business operations with a massive IT transformation

AtkinsRéalis, a global professional services firm of 38,000 employees, faced a complex IT challenge after years of running two largely separate engineering businesses. As part of its One Workspace initiative following the 2023 rebrand, the company needed to consolidate separate Active Directory domains, Microsoft 365 tenants, public folders and SharePoint sites to enable better collaboration, mobility and business agility.

AtkinsRéalis chose Quest for its proven tooling and experienced professional services, taking a phased, agile approach rather than a risky big‑bang cutover. Over 24 months the team migrated 14,000 identities and 10,000 devices (in dozens of migration waves), rebranded 37,000 email accounts and consolidated tenants—delivering improved cybersecurity, higher employee productivity and collaboration, and greater IT efficiency and business agility.

AtkinsRéalis

Richard Stephens

IT Modern Workplace Director