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Case Study

Microsoft 365 services

Combining Glantus’ Microsoft 365 tenants improved security and efficiency


Glantus is an independent software vendor (ISV) with a unique data platform that supports businesses worldwide transform their finance function through data.

Sectors: IT

Solutions: ISV

Vendors: Microsoft

Products: Microsoft 365



After their acquisition of an American company, Glantus realised that to continue supporting their international growth they needed to streamline their IT infrastructure to become more efficient and secure. Due to the acquisition, they had two separate Microsoft 365 Business Premium tenants. 

As Grey Matter is a cloud solutions provider who focuses on supporting ISVs and technology-led companies, Glantus chose us to carry out the project due to our specialist experience. 

After discussions with our professional services division Cloud Know How, it was agreed that we would consolidate Glantus’ Microsoft 365 tenants to allow billing through one tenant. 


We proposed a project of two phases, in order to carry out the work of migrating Glantus’ user data from its’ US tenant to its Ireland tenant for easy management. 

The first phase comprised of creating a setup that was aligned to Microsoft best practice. We assessed Glantus’ existing tenant and made adjustments which built upon Glantus’ existing configuration and security measures. This included deploying Microsoft's enterprise cloud-based identity and access management solution Azure AD, Microsoft Intune for mobile device management, Bitlocker for data encryption and Multi-Factor Authentication. Test users were created to make sure that all policies were working as they should. 

Once Glantus was happy with the tenant setup, the data was migrated from the US tenant to the Ireland tenant and user licences were assigned. The migration included data from Microsoft Teams, SharePoint Online, OneDrive for Business, Exchange Online mailboxes, and Teams Phone Systems which are all part of Microsoft 365 Business Premium. 



By leveraging Grey Matter’s expertise supporting ISVs and implementing Microsoft technologies, Glantus now has one secure Microsoft 365 tenant for both their Irish and US business which has positively impacted their growth and aspirations for efficiency and productivity. 

As well as improving efficiency by allowing billing through one tenant, Glantus also continues to benefit from the collaboration features within Microsoft 365 Premium. 

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Continued security of the infrastructure and data were our primary priorities when incepting the project and Grey Matter were able to guide us on what was required and help us build the solution in secure manner from the start. 

 Grey Matter, in approaching the project in this manner and changing how Glantus IT infrastructure operates, left Glantus in a fantastic position to deal with the disruption of COVID 19. The Transition to remote working was orderly and calm as the new Infrastructure built within M365 allowed us to do so swiftly and securely.

Stephen Barrett – Infrastructure Manager, Glantus

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