IT Support for London Businesses That Want a True Partner

We take full ownership of your IT support, admin, security and strategy so you don’t have to.

A quick, no-pressure conversation about your IT setup.

Outstanding

Excellent

Group of office team members posing together in a modern workspace, showcasing a diverse and collaborative work environment.

From starters and leavers to device management, access and security, we take full ownership of IT day to day so you don’t have to.

If IT Keeps Landing Back on You, This Is Why

Most businesses come to us because:

The same IT issues keep resurfacing, without a clear explanation or long-term fix

Time is wasted coordinating IT, chasing updates, or trying to unblock issues internally

Starters and leavers rely on manual processes, creating delays, gaps, and security risk

Security decisions feel unclear, leaving responsibility uncomfortably on your shoulders

No one is truly accountable for IT planning, so problems are fixed but never prevented

This is what happens when IT isn’t fully owned.
And over time, it pulls focus away from running the business.

It’s what we step in to fix.

What Fully Owned IT Support Actually Means

It means IT stops being your problem.

Every Sereno client is assigned a dedicated Technology Advisor who takes responsibility for oversight, reviews and planning. Your IT is reviewed quarterly using a clear assessment framework, so decisions are based on insight, not guesswork.

Day-to-day IT, owned end-to-end

Issues are resolved without bouncing back to your team for routine coordination or follow-ups. You’re only involved when approval or direction is genuinely needed. Recurring problems are fixed at the root, not reopened or worked around.

Starters, leavers and devices are managed

New joiners are set up properly, leavers are secured on time, and devices are procured, built and managed without chasing or manual work.

Security is managed, not delegated

Access, policies and protections are maintained consistently, so security decisions do not land with non-technical staff or get missed.

IT planning is led, not reactive

Your IT is reviewed regularly and guided around growth, risk and cost, instead of only being addressed when something breaks.

Why London Businesses Choose Sereno

Because Sereno removes the day-to-day burden of IT with clear ownership and leadership.

We take responsibility end to end

You’re not coordinating suppliers, picking things up when no one else owns them, or chasing follow-ups.

We take full ownership of your IT and see actions through to completion.

Your IT is led, not left to drift

You get clear guidance and decisions from people who understand your business, not just ticketed responses. Your IT is actively managed with purpose.

You work with an accountable team

No call centre. No constant handovers. The people supporting you know your environment and remain accountable for outcomes.

Problems are fixed properly

Recurring issues proactively are identified, resolved at the root, and prevented from returning.

What this looks like in practice

A short conversation to understand your setup and see if this makes sense.

Our Happy Clients

5.0
Based on 59 reviews
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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!

Trusted by London Businesses

5 Stars

Rated 5 stars on Google and Cloudtango by 60 London-based businesses we actively support

75+

Supporting 75 companies and over 2300 people across London

Retention

Long-term client relationships, with retention driven by consistent service quality and no clients leaving due to service issues.

100%

Strong team continuity, with 100% staff retention in the last year, so you work with people who know your environment and stay accountable.

Growing

Chosen by growing teams, with many clients increasing headcount and systems while remaining on the same IT platform.

How London businesses remove the IT burden with Sereno

How Working With Sereno Starts

1

Speak with an IT Strategy Director

You’ll speak directly with an IT Strategy Director who understands both the technical and business side of IT.
We start by listening to how IT is currently handled and where it creates friction for your team, whether that’s admin overhead, ownership gaps, or recurring issues.

2

Clear advice and guidance

Based on that conversation, you’ll receive clear, practical guidance in plain English.
If it makes sense to explore working together, we’ll explain what the next steps would look like and what’s involved, so you can make an informed decision.
There’s no pressure to proceed.

3

Structured assessment (once we’re working together)

If you decide to move forward, we then carry out a structured assessment of your IT.
This looks at technology, ownership, risk, and responsibilities, using a clear framework so priorities and recommendations are easy to understand and act on.

Ready to Take IT Off Your Plate?

If IT support, admin, or security still requires your time and attention, it usually means ownership isn’t clear.

We step in and take responsibility.