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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.
Apps and services we configure, secure and support include Microsoft Outlook, Exchange, Teams, SharePoint, OneDrive, Word, Excel, PowerPoint, OneNote and Azure.
Trusted by London teams · Certified by Microsoft, Google & Cyber Essentials
Why managed services
Microsoft 365 is powerful, and a lot to run well. Here's why teams hand the day-to-day to us.
Microsoft 365 spans over 40 connected apps and services, each with its own features and settings, and Microsoft keeps adding more. Keeping everything running smoothly isn’t a one-time job; managing the suite internally quickly becomes a time sink, so we take that weight off your team.
We optimise your Microsoft 365 apps to protect your end-users and devices, from access management and security updates to proactive threat protection, so your setup stays shielded without extra effort from your team’s side.
Partnering with a Microsoft 365 managed services provider helps you maximise your return on investment. We unlock the full potential of the tools you’re already paying for and guide you through the complex licensing options so you can better control and optimise your IT costs.
Wondering what managed Microsoft 365 costs? Get a tailored quote.
What's included
Everything below is included and fully managed for you, one part of our broader managed IT services.
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.
Our experts will manage your Exchange Online environment to ensure smooth mail flow, proper archiving and protection against spam and phishing.
The specialists at Sereno can help you structure your collaboration spaces, set up permissions and build workflows that match how your teams work.
Need Microsoft 365 to work with your CRM, project management system or other tools? We've got you covered.
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.
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.
We manage Microsoft 365 updates so that they're tested, scheduled and rolled out with minimal disruption.
Our managed services for Office 365 include user support and training to help your staff feel confident using the Microsoft 365 suite.
From setting up your domain to configuring DNS records and customising your tenant branding, we handle the back-end work.
Running on Google instead? See our Google Workspace managed services.
Simple, transparent pricing, see your Microsoft 365 plan.
The Sereno difference
What sets us apart from other providers. Hover a card to see how.
Our managed service comes with proactive monitoring, we don't wait for something to break. We catch potential problems early, before they lead to downtime, data loss or distractions for your team. It's the difference between an IT partner that reacts and one that stays a step ahead.
No two businesses work the same way. We take the time to understand how your team works, then build a Microsoft 365 environment that fits your goals, structure and pace.
Keeping your data and devices safe takes more than ticking a few boxes. We implement layered security protocols, access controls, threat detection and multi-factor authentication, to protect your business from risks and threats.
Your collaboration tools should always perform as they should. Our technicians monitor and optimise your Microsoft apps to keep your teams connected regardless of their location.
Trust us to keep every system up to date. We handle each Microsoft 365 update and patch, making sure rollouts are smooth, compliant and don’t interfere with your daily operations.
Ongoing support and practical training so your employees can use the full potential of Microsoft applications, from “how-to” questions to deeper technical needs.
Dominik
9 months ago
Jo Joynes
a year ago
AJ Shazad
a year ago
Tim Field
a year ago
Scott Simmons
a year ago
Adam Wright
a year ago
MB
a year ago
Daljit Sumal
a year ago
Kevin Williams
a year ago
Richard Martin
a year ago
Annabelle Pugh
2 years ago
Dana Ozola
2 years ago
John Holmes
2 years ago
Alexander Moss
2 years ago
James Goodwin
2 years ago
Madeleine Barley
2 years ago
Chris Needham
3 years ago
shima
6 months ago
“Sereno have been a reliable and valued partner, with a fantastic team of highly responsive and capable technicians, backed by proactive and forward-thinking leadership.”
John Holmes
IT Manager, Oikos Storage Ltd
CloudTango Review
“After a couple of challenging years with our previous IT support company, moving to Sereno IT in 2024 has been one of the best business decisions we've made.”
Joanna Socko
Franklyn James
CloudTango Review
“IT is no longer a burden or even a part of my work week. I know the team are looked after quickly if they have an issue, and I get all the advice and guidance…”
Jamie Waldegrave
COO/CFO, Urban Logistics
CloudTango Review
“The advice we've had from Sereno means we can make informed decisions about what our company actually needs and we know we can implement changes easily.”
Alice Lees
Hutton Consulting
CloudTango Review
“Sereno IT provided a solution that perfectly aligned with our needs. Not only did they help us save on costs, but they also ensured our systems are secure and…”
Nigel Shearsby
Statons Estate Agents
CloudTango Review
“We've been working with Sereno IT for a year now and continue to be impressed by their forward-thinking approach.”
Katie Sexton
Archio Ltd
CloudTango Review
“Sereno are an innovative IT company who make solving your IT issues quick and simple with their vast knowledge.”
Jo Nauman
AKT Productions Limited
CloudTango Review
“We have been working with Sereno for around a year and half now, and the support they've provided has been truly invaluable to our business.”
Fay Allen
Greencore Homes Ltd
CloudTango Review
“We've been working with SERENO IT and are very happy with their service. Communication is always smooth and efficient, and their team is extremely helpful and…”
Aziz Selcuk Tuncer
Ant Yapi UK Ltd
CloudTango Review
“Reliable, Responsive, and Proactive — A True IT Partner. We switched to Sereno after experiencing repeated delays and poor communication from our previous IT…”
Nisha Patel
Strata Property Group Ltd
CloudTango Review
“We have worked with Sereno for a couple of years and have been really pleased with them, they are much better than our previous IT support.”
Justin Elvey
Director, Big Potato Limited
CloudTango Review
5-star rated on Google and CloudTango
75+
Companies and 2,300+ people supported
98%
Client retention since inception, with zero quality-related churn
100%
Staff retention last year, so you work with the same accountable team
Growing
We helped our clients grow 14% on average last year
Case studies
London businesses come to Sereno when they want IT to feel organised, owned and easier to manage. Real outcomes for real businesses.
Case study · Hutton Consulting
Modernised cloud and identity setup to support hybrid working, with security and strategy from a partner they could finally trust.
Read the case study
Case study · Statons Estate Agents
Took ownership of devices, onboarding and security so the operations team could focus on customers, not IT.
Read the case study
Case study · Urban Logistics REIT
Built an IT roadmap aligned to growth, with predictable monthly investment, dependable support and clearer reporting.
Read the case studyKeep reading
Guides and reads to help you get more from Microsoft 365 and your IT.
Microsoft 365 gives growing businesses access to enterprise-grade collaboration, security, and productivity tools on a predictable monthly subscription, without the upfront cost of on-premises infrastructure.
Top Microsoft 365 security features and how they can be leveraged to beef up their security game regardless of its scale or sector.
Microsoft has ended the free grants of Business Premium and Office 365 E1 for nonprofits, meaning every eligible charity now has to plan a Microsoft 365 transition before renewal. Here is how to do that without weakening security in the process.
Let's make your Microsoft 365 work smarter.
Let's talk
Question not answered yet? Whether it's about our pricing, services or processes, we're here to answer any question you might have. Just drop us a line or book your 1-1 discovery call to connect at your preferred time.
What we'll cover on the call
We'll get back to you within 60 minutes during business hours.
The next step is to choose a time that works for you. Once booked, our team will be ready to discuss your enquiry.
If you do not book, we’ll contact you within 60 minutes during business hours.
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