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Cloud transformation for RSK

  • Azure
  • Microsoft 365
  • Microsoft Office 365
  • Microsoft SharePoint
  • Microsoft Teams

RSK approached BCN shortly after they had commissioned an on-premise server, with the objective of delivering a highly available environment. However, experiencing business interruption resulting in high levels of maintenance, we discovered the business was operating on a standard version of Exchange. BCN were asked to provide options which would not only resolve their current issues but would allow for future expansion.

  • Client

    • RSK Group.
    • UK HQ, 23 countries, 158 offices, 4,000 users, Internal IT team of 10.
  • Sector

    • Environmental Science
    • Research
    • Engineering and technical services.
  • Key technologies

    • Microsoft Azure
    • Infrastructure-as-a-Service (IaaS)
    • single sign-on
    • Microsoft Office 365 including Exchange Online
    • SharePoint Online
    • Skype for Business
    • Teams
    • business continuity and archiving solution
    • Cisco firewall.
  • BCN services provided

    • Design and management of IaaS environment
    • Implementation of full Microsoft Office Suite, 24/7/365
    • 1st, 2nd and 3rd line service desk including dedicated support during European rollout
    • Security advice and guidance on Office 365 configuration
    • Cisco firewall configuration
    • Programme and business change
    • Support consultancy
    • IT staff training (tech adoption)
    • Deployment of third-party CRM application and vendor collaboration
    • Dedicated backup solution for certain mailboxes.


RSK is a fully integrated, environmental, health, safety and engineering consultancy employing more than 4,000 staff worldwide. A highly acquisitive, fast growth business, RSK required an IT partner to provide advice and support on their infrastructure transformation.

RSK approached BCN Group shortly after they had commissioned an on premise 2013 server running on a cluster of four servers, with the objective of delivering a highly available environment. However, they were experiencing business interruption resulting in high levels of maintenance. We soon discovered that this was because they were operating on a standard version of Exchange. This had limitations relating to number and size of databases.


Challenge & Solution

RSK were on an acquisition trail and this problem was becoming critical. BCN Group were asked to provide options which would not only resolve their current issues but would allow for future expansion.

We proposed two solutions:

  1. Upgrade the current version of Exchange to Enterprise. Although this would eliminate the issue it would mean their existing storage location would not be able to cope with additional storage requirements. They would need to invest in new hardware to
    overcome this.
  2. Move to Office 365. This would give them the ability to host the multi-terabyte data they needed and would save them the time and resource they were currently using to maintain the current environment. However, they would need to invest in Microsoft E3 licences and additional storage expansion.

BCN advised RSK that Office 365 was the best option for them in the medium-longer term. With each acquisition RSK could quickly and easily add user licenses to their environment as and when they needed to, using BCN Group’s customer portal. They could also flex their Azure storage to suit demands.


Once the solution was agreed and road-mapped, BCN Group set about delivering the solution as follows:

  • An Office 365 tenancy was commissioned on behalf of RSK.
  • We designed a hybrid configuration which linked Exchange to the Office 365 environment.
  • We trained RSK’s IT department on how to migrate their 3,000 users, in batches, to Office 365.
  • Once all users were fully migrated we then migrated their public mail folder infrastructure to Office 365.
  • We then decommissioned the hybrid configuration and removed all on premise exchange servers.


Since this initial project RSK has acquired more businesses and BCN Group continue to provide consultancy and support, assisting them with additional Office 365 requirements on a weekly basis.

BCN Group has also migrated RSK to Azure, delivering four key projects involving the migration of business critical applications which manage workflow and projects (they have upwards of 10k projects at any one time).

The advice and support given by BCN Group has provided a robust and flexible environment for this highly acquisitive and fast-growth business. As RSK’s IT partner, we look forward to supporting new projects and optimising technologies moving forward.

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