When your business is carved out, acquired, or merged, the clock starts on standing up — or consolidating — your Microsoft 365 and cloud environment. TenantSever runs that separation end to end, across Azure and AWS, on a fixed timeline — so you exit the TSA on schedule and your people never miss a beat.
After a carve-out or divestiture, the seller keeps running your IT for a fixed window — then it stops. Standing up your own tenant, identity, email, and cloud accounts is almost always the longest workstream, it usually lands on a team already doing everything else, and an overrun gets expensive fast.
Standing up a brand-new environment or consolidating into an acquirer's, TenantSever owns the whole estate. Not just the mailboxes.
A clean tenant-to-tenant migration or stand-up: Exchange, Teams, SharePoint, OneDrive — with coexistence so nothing goes dark mid-cutover.
Entra ID / Active Directory severed or merged, conditional access, MFA, and least-privilege re-established from day one.
Subscriptions, AWS accounts and Organizations split or consolidated — networking, workloads, and landing zones rebuilt cleanly.
File shares, line-of-business apps, and data migrated and re-pointed, with a documented chain of custody.
Journaling, legal hold, and records retention preserved through the move — HIPAA, SEC/FINRA, and ITAR/CUI in scope.
Email security, endpoint, and logging stood up so the new entity isn't exposed during the riskiest weeks of its life.
Consolidating into one cloud while severing from another? Most shops are Microsoft-only and hand you to a second vendor for the AWS side. We run both — so a single team owns the whole separation, on a single timeline, with no finger-pointing.
We map your estate and the TSA's IT expiry date, then back a realistic plan into that deadline.
Target tenant, identity model, cloud landing zones, and compliance controls — before anything moves.
Phased cutover with coexistence: mail, identity, files, apps, and cloud workloads. Users stay productive.
Decommission the TSA dependencies, confirm compliance, hand over a clean, documented environment.
A unit spun out of a larger parent, on a TSA clock, often with no IT team of its own. The deadline is real and the work is non-discretionary.
Multi-site groups and roll-ups where M365 has to line up with the EHR and PHI stays protected through every cutover.
Advisory firms consolidating into an acquirer with journaling, books-and-records, and retention intact.
Carriers and agencies under new ownership that need a governed, compliant foundation ready to absorb add-ons.
Separations that require GCC High, Azure Government, or AWS GovCloud and careful handling of controlled data.
Buy-and-build platforms where every tuck-in is another integration — run as a repeatable play, faster each time.
Backed into the date that matters, with no scramble at the end.
Coexistence and phased cutover keep email, files, and access working throughout.
Retention, journaling, and controlled data preserved and provable after the move.
Azure and AWS under one roof — no vendor finger-pointing.
Documented environment, decommissioned dependencies, nothing left tangled with the parent.
Boots on the ground who move at the pace a deadline demands.
It depends on size and how deeply you're wired into the parent, but most mid-market separations run a few months for a focused estate to 12–18 months for a complex one. The first thing we do is back a plan into your TSA's IT expiry date.
Yes. Tenant-to-tenant consolidation is the mirror image of a stand-up, and it's a large share of what we do — merging mail, identity, Teams, and SharePoint into one environment without disrupting users.
That's our sweet spot. We run both, so one team severs the Microsoft 365 side and the AWS accounts/Organizations at once — on a single timeline.
Compliance is designed in from the start: retention and journaling preserved, PHI protected, and GCC High / Azure Government / AWS GovCloud where controlled data requires it.
It's the best time. Planning before or right at close is what makes the migration faster and cheaper. The earlier we start, the more of the TSA window you keep.
A 20-minute separation assessment: we map your estate against your TSA's IT expiry and show you where it usually goes sideways — and how to stay ahead of the clock.