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Co-Managed IT · For In-House Teams

Co-Managed IT Support for Your In-House IT Team

Overstretched IT team? We're the backup you can rely on.

If your in-house team needs extra hands, specialist expertise, or dependable UK-based coverage, Sereno works alongside them, reducing pressure and filling skill gaps, without adding to your payroll.

Who does what In sync
  • IT strategy & roadmap You
  • Day-to-day support Sereno
  • New starters & leavers Sereno
  • Security monitoring Together
  • Projects & rollouts Sereno
  • Admin access & control You

Agreed clearly from day one, you stay in control.

Is it right for you?

When does co-managed IT support make sense?

Sereno's structured, flexible co-managed IT services strengthen internal teams and remove the blockers that slow you down. You'll benefit from our co-managed service if you:

  • Have a small internal IT team that's overstretched and needs reliable, ongoing support to keep pace with demand.

  • Rely on global or offshore IT support but struggle with slow response times during UK working hours.

  • Manage a UK office or branch and need a local co-managed IT service provider for hands-on support.

  • Want your internal IT team focused on strategic projects, not tied up with repetitive support and admin tasks.

  • Need to increase IT capacity and capability without the time, cost, or complexity of hiring more full-time staff.

  • Want to retain control of your IT operation, including how services are managed.

What we cover

Our IT services for internal IT teams

Sereno's co-managed IT services provide the expertise and resources your existing team may need to handle growing workloads and complex projects, part of our broader managed IT services.

How it helps

Extra capacity, exactly when it's needed most

Internal IT teams often manage a wide range of responsibilities, from day-to-day support requests to cloud management and IT strategy. For organisations with limited internal IT resources, keeping systems secure, reliable and up to date can become increasingly challenging.

Sereno delivers comprehensive co-managed IT services, providing additional expertise, specialist tools and extra capacity when it's needed most, backed by recognised industry credentials.

Backed by recognised credentials

  • Microsoft Gold Partner

    Certified Microsoft expertise

  • SME Awards Finalist

    Recognised for service quality

  • Cyber Essentials Plus

    Independently assessed security

Give your in-house team the backup it deserves. Talk to us today.

Why Sereno

Why choose Sereno for co-managed IT support?

Your internal IT department deserves a support partner they can count on. At Sereno, we provide UK-based co-managed support that builds trust, strengthens your IT function, and helps your team perform at its best.

We understand your internal team knows your systems and your people better than anyone. As a co-managed service provider, our role is to work alongside them, filling skill gaps, reducing the pressure, and offering additional support exactly where it's needed. Hover a card to see what's included.

Clear Responsibilities from Day One

Everything documented, so nothing gets missed.

  • What we support, desktops, infrastructure and systems
  • When to escalate issues to your internal IT team
  • The level of admin access you're comfortable with

Trusted UK-Based Coverage with Global Awareness

Reliable local support that fits your structure.

  • UK time-zone coverage
  • On-site support when needed
  • Seamless collaboration with remote or HQ-based IT teams

Help with Day-to-Day IT Tasks

We take the routine work off your team’s plate.

  • New starter and leaver setup
  • Device builds and reconfigurations
  • Email, permissions and licence management
  • Procurement and warranty coordination

Fast, Dependable Support

We back your team up without disruption or delays.

  • Live chat, support portal and bookable engineer time
  • Remote support powered by professional-grade tools
  • Transparent ticket tracking and clear escalation routes

Expert Support for Projects, Large and Small

Extra hands when your team needs them most.

  • Cloud migrations and system upgrades
  • Office moves and hardware refreshes
  • Disaster recovery, cyber security and compliance support

A Partnership You Can Count On

Built around collaboration and long-term relationships.

  • Proven processes from working with internal IT teams across sectors
  • Advice and insights that enhance productivity and reduce stress

Access to Tools You Can't Get Directly

As a channel-only partner, we unlock more for your team.

  • Enterprise-grade tools typically unavailable to end users
  • Discounted licensing through trusted vendor partnerships
  • Procurement support to simplify sourcing and renewals
  • Expert deployment, training and ongoing optimisation
  • Manage tools internally, or let us handle them for you

Case studies

Client Success Stories

How we've strengthened in-house teams and IT operations for businesses like yours.

  • Hutton Consulting

    Case study · Hutton Consulting

    The IT Relationship Hutton Consulting Was Looking For

    Modernised cloud and identity setup to support hybrid working, with security and strategy from a partner they could finally trust.

    Read the case study
  • Statons Estate Agents offices

    Case study · Statons Estate Agents

    How Statons Transformed Operations with Microsoft 365

    Took ownership of devices, onboarding and security so the operations team could focus on customers, not IT.

    Read the case study
  • Urban Logistics REIT

    Case study · Urban Logistics REIT

    Reliable IT Support for a Listed Property Investment Company

    Built an IT roadmap aligned to growth, with predictable monthly investment, dependable support and clearer reporting.

    Read the case study

How it works

How co-managed IT services work

Designed to support your internal team without disrupting existing processes. Hover a step to see what's involved.

  1. Review

    Understanding your IT environment

    We begin by reviewing your current infrastructure and processes.

  2. Align

    Defining roles & responsibilities

    Together with your team, we define which areas Sereno will support and which remain the responsibility of your internal IT department.

  3. Integrate

    Integrating tools & systems

    Our monitoring and support tools are integrated with your existing systems.

  4. Support

    Supporting daily IT operations

    Sereno works alongside your internal team to help manage workloads, resolve technical issues, and assist with infrastructure and projects.

  5. Optimise

    Continuous monitoring & improvement

    Ongoing monitoring, reporting and recommendations keep your IT secure and efficient, and support flexes as your business grows.

Partnered with the best · Certified by Microsoft, Google & Cyber Essentials

  • Microsoft Solutions Partner
  • Google Workspace Partner
  • Cyber Essentials Plus
  • SentinelOne
  • Jamf
  • NinjaOne
  • Datto Authorized Partner
  • SonicWall
  • Bitdefender
  • KnowBe4
  • DNSFilter
  • Keepr
  • Datto
  • Microsoft Teams

Sound familiar?

Common co-managed IT support scenarios we help with

Many growing businesses reach a point where internal IT needs extra support. Here's where Sereno's co-managed IT service steps in:

  • You have 1–3 IT staff managing day-to-day operations, but struggle with capacity during holidays, sick leave or busy periods.

  • Your skilled IT staff are bogged down with repetitive tasks, device builds, user setup, licences, leaving little time for strategic work.

  • Your business has outgrown a solo IT manager, but you're not ready to build a full IT department.

  • Your core IT is managed from a global HQ or offshore team, but your UK office needs responsive, on-the-ground support.

Our Happy Clients

Google Reviews

70 Google reviews

Write a review
  • Dominik

    9 months ago

    We have partnered with Sereno on a range of IT projects and appointed them as our managed IT services provider and the experience has been exceptional from the…

  • Jo Joynes

    a year ago

    Sereno IT are innovative in their approach to IT support. We moved to Sereno IT in Jan 2023 and have not looked back.

  • AJ Shazad

    a year ago

    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.

  • Tim Field

    a year ago

    Great company, very efficient with some wonderful individuals supporting

  • Scott Simmons

    a year ago

    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…

  • Adam Wright

    a year ago

    We've been working with Sereno for 18 months now and have been impressed by their solution oriented approach.

  • MB

    a year ago

    Great service, rapid response time, friendly, professional technicians - couldn't be better. Very glad we switched providers.

  • Daljit Sumal

    a year ago

    Amazing service as always. Had a few queries which were dealt with swiftly and calmly.

  • Kevin Williams

    a year ago

    Sereno have always responded quickly to our requests/issues. Very polite and professional staff who keep you informed of progress of any problem solutions…

  • Richard Martin

    a year ago

    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.

  • Annabelle Pugh

    2 years ago

    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.

  • Dana Ozola

    2 years ago

    These guys are new in the market, but they provide outstanding service. What is important to our company, that they comprehend hierarchy of team and therefore…

  • John Holmes

    2 years ago

    We have been a customer of Sereno since Summer 2023 and the experience since has been overwhelmingly positive.

  • Alexander Moss

    2 years ago

    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

    2 years ago

    My business has recently adopted Sereno IT Support as our ITSM partner over the last quarter.

  • Madeleine Barley

    2 years ago

    Excellent, speedy, friendly and very 'human' service. Intuitive and easy to use platform.

  • Chris Needham

    3 years ago

    I've had the pleasure of working with Sereno for several months now, they are honestly absolutely fantastic.

  • shima

    6 months ago

    Sereno is the most reliable IT support team

CloudTango Reviews
  • “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

Frequently asked questions

Common queries on the co-managed model, whether it's right for you, and what to expect when partnering with Sereno.

Co-managed support refers to partnering with an experienced IT team that works as an extension of your in-house team without adding to your payroll. The key difference is that co-managed IT is about collaboration, while fully managed support is about replacement.

Unlike fully managed services, where everything is outsourced, our co-managed approach keeps you in control while we provide external expertise to handle the areas you need help with. Whether it's day-to-day support, escalations or project delivery, we integrate seamlessly with your existing IT setup to strengthen your core operations. This gives your team the confidence to take holidays, manage unexpected absences, and maintain service levels without disruption.

You may need co-managed support if your internal staff is under pressure or struggling to keep up. Common signs include an overstretched in-house IT team, an IT manager tied up with daily support tasks, or skill gaps that limit your ability to manage projects and systems effectively. You might be facing frequent delays in IT initiatives, rising cyber security risks, or downtime that's starting to impact productivity.

Not sure where to start? Let's talk. Book a quick IT consultation and find out if co-managed support is the right fit to strengthen your in-house expertise. No sales pitch, just clear, honest advice.

Yes, Sereno's co-managed IT support is specifically designed to reduce the workload on in-house IT teams. We work alongside your in-house specialists to handle routine tasks such as user support, device setup, system monitoring and maintenance. This allows your IT staff to focus on strategic projects, planning and, ultimately, achieving your business goals. If your team is stretched thin or spending too much time on day-to-day support, co-managed support can provide the extra capacity you need without increasing headcount.

In a co-managed IT setup, you can outsource a wide range of tasks to complement your internal team. Common areas include user support, device builds and configuration, onboarding and offboarding, patch management, remote monitoring, licence and permissions management, and day-to-day troubleshooting. At Sereno, we also assist with project delivery, procurement and cyber security tasks. You choose which responsibilities to keep in-house and which to delegate, giving you full flexibility and control.

If you're unsure where to start, feel free to request an audit from us. We'll help you evaluate where your internal specialists are spending the most time and work with you to define clear responsibilities that make the best use of your resources.

Strengthen your in-house IT team with a partner you can count on.

Let's talk

Ready to back up your IT team?

Tell us where your team is stretched and we'll show you exactly how co-managed IT support could help, with no sales pitch, just clear, honest advice. Drop us a line or book a 1-1 call.

What we'll cover on the call

  • Where your in-house team is stretched or has skill gaps
  • Which tasks to keep in-house vs. hand to Sereno
  • UK-hours coverage, escalation and admin-access boundaries
  • How we'd integrate with your existing tools and processes
  • A clear split of responsibilities from day one

We'll get back to you within 60 minutes during business hours.

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