Microsoft 365 Managed Services

Sereno provides comprehensive Microsoft 365 (Office 365) managed services to help your teams make the
most of your Microsoft 365 ecosystem. We can handle day-to-day management, updates, user support and
security so your employees focus on what matters most.

Rated oustanding on Google

Why Microsoft 365 Managed Services?

It's a complex ecosystem

Microsoft 365 is a complex ecosystem with over 40 connected apps and services, all with their own features and settings. Moreover, Microsoft constantly adds new features and updates. To keep everything running smoothly isn’t just a one-time job — managing the suite internally can quickly become a time sink.

Security requires expertise

A managed service provider can optimise Microsoft 365 apps to ensure the security of your end-users and
devices. The experts at Sereno implement necessary security measures, from access management and security updates to proactive threat protection, so your setup stays shielded without extra effort from your team’s side.

You get higher ROI

Partnering with a Microsoft 365 managed services provider helps you maximise your return on investment. We’ll help you unlock the full potential of the tools you’re already using (and probably a few you’re not). Also, we’ll
guide you through the complex licensing options so that you can better control and optimise your IT costs.

What's Included in Our Microsoft Office 365 Managed Services?

User & License Management

We handle user setups, password resets and permissions so your team always has the right access. Plus, we keep your license usage efficient — no more paying for seats you’re not using.

Email Configuration & Support

Our experts will manage your Exchange Online environment to ensure smooth mail flow, proper archiving and protection against spam and phishing.

Teams & SharePoint Administration

The specialists at Sereno can help you structure your collaboration spaces, set up permissions and build workflows that match how your teams work.

Third-Party Integrations

Need Microsoft 365 to work with your CRM, project management system or other tools? We’ve got you covered.

Security & Compliance

Microsoft 365 offers powerful security features — if they’re set up right. From multi-factor authentication to security monitoring, we’ll properly protect your files, emails and user data.

System Monitoring

Our team keeps a constant eye on system performance, user activity and security logs. If something goes wrong, we catch it early and fix it fast.

Updates & Patches

We manage Microsoft 365 updates so that they’re tested, scheduled and rolled out with minimal disruption.

User Support & Training

Our managed services for Office 365 include user support and training to help your staff feel confident using the Microsoft 365 suite.

Tenant & Domain Management​

From setting up your domain to configuring DNS records and customising your tenant branding, we handle the back-end work.

What You Will Get From Partnering with Sereno IT

Our Happy Clients

5.0
Based on 59 reviews
powered by Google
AJ Shazad
11:26 23 Apr 25
I have known Sereno (and their previous business) since 2016 as they are the IT solutions providers of our private credit fund with complex operations. Sereno are exceptional in solving issues in a prompt manner. Most recently I have dealt with Sahaj who set me up on the company IT infrastructure within few hours which can take days in a similar business with the complexity that the fund has. Furthermore, Sahaj resolved more issues for me with 2fa, mobile and security set-ups. Team members are available as soon as an issue pops up and generally relationship is managed by a single person making things streamlined with the single person with all knowledge of issues and set-ups to date. I would highly recommend Sereno based on my personal experience of them solving multiple problems for me at the credit fund.
Tim Field
10:21 22 Apr 25
Great company, very efficient with some wonderful individuals supporting
Scott Simmons
08:31 22 Apr 25
We have used Sereno for our IT support since May 2023 and find the team to be quick, informative and clear in terms of describing any work carried out to laptops etc. Highly recommended
Adam Wright
13:16 17 Apr 25
We've been working with Sereno for 18 months now and have been impressed by their solution oriented approach. Supporting us well with longer-term planning and day-to-day fixes. Recommend.
MB
12:15 17 Apr 25
Great service, rapid response time, friendly, professional technicians - couldn’t be better. Very glad we switched providers.
Daljit Sumal (GT)
11:42 17 Apr 25
Amazing service as always. x Had a few queries which were dealt with swiftly and calmly. x
Zoe Roberts
10:45 17 Apr 25
Kevin Williams
09:52 17 Apr 25
Sereno have always responded quicky to our requests/issues. Very polite and professional staff who keep you informed of progress of any problem solutions until fully resolved. I cannot recommend Sereno enough they offer a five star service.
Richard Martin
09:27 17 Apr 25
My company moved to Sereno IT over the new year and we have found the process not only to be painless but i would describe it as enjoyable. They have kept me and my team updated and in the process managed to save us money by developing our systems and removing unnecessary expenses on services that were no longer required. Great to find a partner that proactively works in the background with the best interests of my company at the forefront of their work.
Lauren Coyle
09:08 17 Apr 25
Annabelle Pugh
14:22 13 Dec 23
We have been clients of Sereno IT's since summer 2023 and we have been extremely happy with the service we have received to date. Sereno have built their business with a direct aim to fix the issues that are notoriously problematic with MSPs, and having experienced some of these problems with our previous MSP, Sereno are truly achieving in their efforts.

Everything is so streamlined and easy for clients to use - their partner portal has truly thought of everything, from ordering IT equipment, to scheduling calls with engineers. The team always make sure everything is very clearly explained, and when things are a little more technical/ difficult to put into an email, we have received personal video explanations which have been so useful.

Highly recommend Sereno's services!
Dana Ozola
12:41 07 Dec 23
These guys are new in the market, but they provide outstanding service service. What is important to our company, that they comprehend hierarchy of team and therefore importance despite the issue is applied. When we need something urgent, they find a manpower to resolve it asap. And most important for me as an assistant, i don't have to have IT language to explain the issue, they know issue is there and they find it and fix it - i do not have to answer 10 questions if i have done this or that, but they fix it by jumping on the system, with in short time all is done and you can move on with your day. And they are always positive 🙂
John Holmes
20:42 06 Dec 23
We have been a customer of Sereno since Summer 2023 and the experience since has been overwhelmingly positive. We are an SMB working in a complex, safety-critical industry, where stable and reliable IT services are paramount. Sereno have never let us down, with their team of highly competent, customer-focused technicians, who always go the extra mile.

As well as high quality services, they are also proactive in identifying areas for improvement and where they can add value. Compared to many other traditional IT suppliers, they are interested in establishing a true partnership, where the needs of both parties are taken into consideration.

I really can't recommended Sereno IT highly enough, as the other 5* reviews on here will also testify.
Alexander Moss
12:17 05 Dec 23
Great company, full of energy and very attentive to our needs. You really get a personalised service, with the technical ability of a much larger company.
James Goodwin
16:43 04 Dec 23
My business has recently adopted Sereno IT Support as our ITSM partner over the last quarter. This has been a sensible move for us as we scale, and the moving parts will become more complex as we grow. I have experienced a few issues, but these have been quickly addressed. One particular, tricky item involving my work mobile was a challenge - but, “We got there in the end! Thank you Tamim - your support has been very helpful and much appreciated”
Madeleine Barley
12:43 04 Dec 23
Excellent, speedy, friendly and very 'human' service. Intuitive and easy to use platform. I'm the type of person who normally puts off raising IT tickets but Sereno has actually changed that for me because it's so easy and straightforward, and everything gets actioned quickly.
Chris Needham
10:55 07 Jul 23
I've had the pleasure of working with Sereno for several months now, they are honestly absolutely fantastic. The service really is better than I have experienced from other support organisations.

The team is incredibly easy to work with. Everyone I have interacted with is friendly, seems to listen and is generally responsive. They also have a high level of understanding of industry specific problems which helps a lot.

We've has issues in the past with really slow response times but this an area where Sereno does really well. We're usually able to get an answer to queries within minutes, and resolutions within hours at most.

We have also used them for advisory services on security and are really happy with the results. It's been a much more efficient process than the in house team we have previously.

Highly recommend!

Frequently Asked Questions

Originally, Office 365 referred to the subscription-based service that gave you access to Microsoft Office apps (Word, Excel, Outlook, etc.) and cloud services like OneDrive and Exchange. In 2020, Microsoft rebranded most Office 365 plans under the Microsoft 365 name. Microsoft 365 now includes everything Office 365 has, plus advanced security features, device management and collaboration tools.

Microsoft 365 can be complex to manage in-house. A managed service gives you expert support with setup, updates, security and day-to-day administration so you can get the most out of your investment without the stress of handling it all internally. Many of our clients that have in-house IT specialists still use our Microsoft 365 services to let their IT team stay focused on strategic projects.

Yes. We provide managed Microsoft 365 support to fully remote, office-based and hybrid teams. When working with hybrid or remote teams, we strongly focus on tools like Teams, OneDrive and SharePoint to support real-time collaboration, secure access from anywhere and smooth communication.

What's Next For You?

Explore our other guides, must reads, checklist and freebies...

Illustration of a support agent working on a laptop surrounded by IT service icons like 24/7 support, tools, and user credentials – representing the benefits of outsourcing IT support, featured on Sereno’s business IT outsourcing guide.

Why Outsource IT Support?

Outsource or not to outsource IT support? Read our article to explore the benefits of outsourcing IT support to make a more informed decision.