Microsoft 365 · consulting, migration & operation

Microsoft 365 consulting for businesses

Microsoft 365 properly introduced, cleanly migrated and looked after for the long run. We advise you on the right licence, move your data to the cloud without downtime and take care of day-to-day operation - with a named contact instead of an anonymous hotline.

Mitarbeiterin arbeitet konzentriert am Laptop in einem hellen Büro – Microsoft 365 als digitaler Arbeitsplatz, eingerichtet und betreut von oneCorp
More than 20 years
Running IT for the German Mittelstand
Own team in the ISO 27001 data centre in Düsseldorf
Certified security for your data
100% Germany
Operations, data, contracts

Microsoft 365 takes five minutes to buy. The trouble comes later.

Licences are quickly ordered. Then it turns out: mailboxes are half migrated, old data is missing, permissions are wide open, and no one knows who's actually the admin. We take on Microsoft 365 completely - from licence advice through migration to day-to-day operation. You get an environment that's set up cleanly and stays looked after.

What we take off your plate

Advice & licence selection

We clarify which licence you really need - and which you don't. You obtain and manage licences through us: one contract, one invoice, one contact.

Migration without downtime

Mailboxes, data and permissions move over - planned, in waves or at the weekend. Your full history comes with you.

Setup & protection

Multi-factor sign-in, clean permissions, clear admin roles. An environment that's right from the start instead of sprawling over the years.

Ongoing operation

Onboarding new staff, cleanly offboarding leavers, adjusting licences, resolving issues. You call, we take care of it.

Data backup

Microsoft ensures availability, not your data. On request we additionally back up your Microsoft 365 data in a German ISO 27001 data centre.

Onboarding & guidance

We set things up, show your team the key steps and stay reachable in the first weeks. We don't offer classic training courses - if you need those, we'll tell you honestly.

Microsoft 365 Business - the right licence

All prices per user and month, net plus VAT, 12-month term. A monthly term is available on request.

Business Basic

6,07 €
per user / month

net plus VAT · 12-month term

For teams that mainly need email, Teams and cloud storage and get by with the web apps.

Included

✓
Microsoft Teams (meetings & chat)
✓
Email inbox with Exchange (50 GB)
✓
OneDrive cloud storage (1 TB)
✓
Word, Excel, PowerPoint (web & mobile)
✓
Outlook (web & mobile)
✓
SharePoint & OneDrive
Request a quote
Our recommendation

Business Standard

12,13 €
per user / month

net plus VAT · 12-month term

The standard for most companies: everything in Basic, plus the installed Office apps on the computer.

Everything in Basic, plus

✓
Word, Excel, PowerPoint & Outlook as desktop apps
✓
Scheduling & task planning (Bookings, Planner)
✓
Microsoft Clipchamp & Loop
✓
Webinars & larger Teams meetings
Request a quote

Business Premium

19,06 €
per user / month

net plus VAT · 12-month term

When security and device management come into play: everything in Standard, plus protection for devices and identities.

Everything in Standard, plus

✓
Microsoft Defender for Business
✓
Intune: device management & rollout
✓
Entra ID: conditional access & multi-factor sign-in
✓
Microsoft Purview: information protection
✓
Windows 11 Business upgrade
Request a quote

Four steps to Microsoft 365

1
Free initial call

We look at what you work with today and what you need. After that you know which licence fits - even if you decide against us.

2
Licence & migration plan

You get a concrete quote and a plan: what gets migrated when, who's affected when, what your staff need to do.

3
Migration & setup

We move mailboxes and data - in waves or at the weekend, so your business keeps running. Afterwards the environment stands clean and secured.

4
Operation & support

From then on we take care of it: creating users, adjusting licences, resolving issues - with a named contact.

Sensible add-ons

Microsoft 365 backup

Priced by volume

Microsoft ensures availability, not recoverability. Deleted mailboxes, ransomware or a mistake that only surfaces months later - for that you need your own backup in a German ISO 27001 data centre.

More on Backup as a Service →

Microsoft Teams Premium

Add-on licence

Extends your existing licence with AI-assisted meeting summaries, real-time translation and advanced protection - such as watermarks and end-to-end encryption for confidential meetings.

Microsoft 365 Copilot

On request

Wondering whether Copilot is worth it? Talk to us. One thing up front: Copilot can access everything a user is permitted to see - clean permissions are the prerequisite, not the finishing touch.

Cloud phone system

As a managed service

Telephony rounds out the digital workplace: VoIP from German data centres, set up and looked after by us - inside Teams if you like.

More on the VoIP cloud phone system →

We don't just sell you licences

Most Microsoft 365 offers end at the licence sale. At oneCorp that's where the work begins. We run our own infrastructure in an ISO 27001-certified data centre in Düsseldorf - with our own team and technicians right on site. Your Microsoft 365 environment gets that same operational discipline: we solve most things remotely, and when it has to be on site, we're quickly with you from Heidelberg or Düsseldorf. And if you need more than Microsoft - your own servers, Nextcloud, colocation - you get it from the same hands.

More on Managed IT from oneCorp
FAQ

Frequently Asked Questions

What is the difference between Office 365 and Microsoft 365?
Office 365 was the former name for the package of familiar applications such as Word, Excel and Outlook together with cloud services. Microsoft 365 is today's name and the larger package: it contains the same applications plus management and security features for devices and identities. If you want to buy "Office 365" today, you usually mean Microsoft 365 Business.
Which licence suits my company?
As a rule of thumb: Business Basic is enough if your team works in the browser and mainly needs email, Teams and cloud storage. Business Standard is right for most companies because the Office apps are installed locally. Business Premium pays off as soon as device management and security matter - for example with home office, company laptops or compliance requirements. We clarify this in 20 minutes in the initial consultation.
How does the migration work - is there any downtime?
We migrate in waves or at the weekend so your business keeps running. Mailboxes are synchronised in the background and only switched over at the end - your full email history comes with you. For your staff, the only noticeable step is usually a one-off sign-in. We tell you what to do beforehand, not afterwards.
What about data protection and GDPR?
Microsoft processes European business customers' data within the EU Data Boundary and provides a data processing agreement. However, you remain responsible for using it in a compliant way - and that comes down to configuration: permissions, logging, retention. That is exactly what we set up properly. If you want to keep data exclusively in Germany, Nextcloud is the more honest answer - and you can get that from us too.
Do I also need a backup?
Yes, in our view. Microsoft guarantees the availability of the service, not the recoverability of your data. Accidentally deleted mailboxes, files encrypted after an attack, or a mistake that only surfaces months later - for that you need your own backup. We back up your Microsoft 365 data in a German ISO 27001 data centre.
Can I change licences later?
An upgrade, for example from Business Basic to Standard, is possible at any time during operation. Switching to a smaller licence or reducing the number is tied to the contract term and usually only possible at the end of the billing period. You can add new employees at any time.
What does your support cost on top of the licence?
It depends on what you need. Pure licence management is different from fully managing your Microsoft 365 environment. In the initial consultation we clarify your needs and quote you a concrete price - not a flat rate that turns out not to fit. If you are looking for comprehensive IT support anyway, Microsoft 365 Administration is already included in our Managed IT packages.

Discuss Microsoft 365, no strings attached

Tell us briefly what you work with today. You'll get an assessment of which licence fits and what a migration would mean for you — no obligation, no sales pressure.

Thank you! We'll get back to you within one business day — usually much sooner.
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Tristan Fischer AnsprechpartnerContactTristan Fischer