Anonymized engagement summary: moving an acquired firm's Office 365 tenant — SharePoint, OneDrive, Teams and Power BI — into the parent's tenant for a life sciences services company (2020)
Anonymized engagement summaryLife sciences services company · 2020
Opening answer. In 2020 EPC Group was engaged by a life sciences services company to move the Office 365 tenant of a firm it had acquired into its own tenant. The source tenant held:
- about 200 licensed users
- 504 SharePoint sites (113 active), using about 3.6 TB
- 253 OneDrive accounts (167 active), using about 5.6 TB
- 83 teams, with 314 internal users and 225 guests
SharePoint, Teams, OneDrive and Power BI dashboards were all to be migrated, with little or no downtime and business continuity throughout.
This is an anonymized engagement summary published under EPC Group's anonymized-engagement rule: the client is not named, no commercial terms are published, and every statement is EPC-reported. Named, documented engagements are in the Evidence Center.
Problem and scope
| Item | Scope |
|---|---|
| Organization | A life sciences services company |
| Source | The acquired firm's Office 365 tenant: about 200 licensed users; SharePoint 504 sites (113 active), about 601,000 files, 3.6 TB; OneDrive 253 accounts (167 active), about 996,000 files, 5.6 TB; Teams 83 teams, 539 users (314 internal, 225 guests) |
| Target | The company's existing Office 365 tenant and Exchange Online |
| Workloads | SharePoint Online content, Teams, OneDrive and Power BI dashboards |
| Outcomes sought | A complete SharePoint migration; all data and users merged into the target with little or no downtime; business continuity throughout |
| Services | Assessment, migration planning, migration execution and post-migration support |
Not reported: mailbox counts, the migration tooling, the cut-over date and any measured result.
Approach and artifacts
Measure what is really in use. The engagement separates total from active sites, files and accounts. For example, 113 of 504 SharePoint sites were active.
Count guests as well as staff. The inventory records 225 guest users across 83 teams alongside 314 internal users.
Keep the business running. Merging users and data with little or no downtime is a stated outcome, so planning, execution and post-migration support are scoped together.
What EPC Group delivered and what is not claimed
| Claim | Basis | Status |
|---|---|---|
| The company contracted EPC Group to consolidate the acquired firm's tenant into its own | EPC engagement record | Contracted (EPC-reported) |
| Migration completed, cut-over done, or measured results | Not reported | Not claimed |
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Last updated by Errin O'Connor, Founder & Chief AI Architect, EPC Group
Related service: Microsoft 365 Tenant Consolidation for M&A
Author: Errin O'Connor, Founder & Chief AI Architect, EPC Group · Published October 25, 2026 · Project alias EPC-2020-ANON-LS-T2T · Published under the anonymized-engagement rule.