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For Small Businesses · London

Small Business IT Support London

Sereno provides small business IT support in London for growing small and medium businesses with 10-120 employees that want IT properly owned. We work with organisations that don’t have an internal IT team and need fully managed IT support, as well as companies with in-house expertise who can benefit from co-managed IT support to add additional capacity, specialist knowledge, or more consistent day-to-day support.

  • One accountable support partner for everyday IT issues, starters and leavers, keeping everything moving.
  • Longer-term planning and strategy, allowing your team to focus on running and growing the business.
  • Full ownership of IT support, IT admin, cyber security, users and devices.
  • Microsoft 365, Google Workspace and cloud services.
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16 services · one partner

Our Small Business IT Support Services

Everything a growing London business needs to run, under one roof, from one team you can actually reach. Explore our services below.

  • Managed IT Support

    Our managed IT services give growing businesses an outsourced IT team without having to build every capability internally. We take ownership of day-to-day IT support, IT admin, users, devices, security and ongoing IT management.

    Explore our managed IT services

  • Cyber Security Services

    Cyber security works best when it is built into normal IT management. We help London businesses strengthen protection against cyber threats through practical controls such as multi-factor authentication, managed endpoint protection, patching, firewall management, vulnerability checks, access controls and security awareness training.

    Explore our Cyber security services

  • Managed Cloud Services

    We manage and support cloud environments across Microsoft 365, Google Workspace and wider cloud infrastructure. That includes migrations, access, security, collaboration, storage and ongoing administration.

  • People and Device Lifecycle Management

    Every new starter needs accounts, access, licences and equipment. Every leaver needs access removed securely. Devices need to be purchased, configured, managed and eventually replaced. We take ownership of those processes so your in-house team is not coordinating them manually and important steps do not get missed.

  • Microsoft 365 Support Services

    Many businesses rely on Microsoft 365 for their day-to-day operations. We help manage, secure and optimise Microsoft 365 across Exchange, Teams, SharePoint, OneDrive, users, permissions, licences and security controls. We also support migrations and the day-to-day administration that otherwise ends up spread between managers, internal staff and different suppliers.

    Explore our Microsoft 365 managed services

  • Google Workspace Support Services

    We manage Google Workspace environments across Gmail, Drive, Meet, Docs, user administration and security. That includes helping businesses control access, manage accounts, support collaboration tools and keep the platform organised as teams change and grow.

    Explore our Google Workspace managed services

  • AI Services

    Sereno's IT experts help businesses adopt AI tools securely and practically, improving workflows and productivity without overlooking governance or business risk.

  • Telecom Services

    We support business connectivity, VoIP and modern communication systems that keep office-based and hybrid teams connected. That spans advice, setup and ongoing support, with Sereno acting as the clear point of ownership when a telecom or connectivity issue needs investigation.

  • IT Infrastructure and Network Management

    We manage and support connectivity, wireless networks, firewalls, servers and other business-critical IT infrastructure. Our work covers monitoring, maintenance and network management, as well as investigating the root cause when recurring problems affect performance.

    Explore our IT Infrastructure Management Services

  • Backup and Disaster Recovery

    Our IT support company helps businesses protect critical systems and data with appropriate backup and disaster recovery arrangements. The key questions are practical. What is protected? How quickly can it be recovered? Who owns the process when something goes wrong? With Sereno, those questions have clear answers before there is an incident.

  • IT Helpdesk Support

    Your employees should have one clear place to go when they need help. Our IT helpdesk handles day-to-day issues, troubleshooting and support requests, while also looking for recurring problems that should be fixed properly rather than repeatedly worked around.

    Explore our IT Helpdesk services

  • IT Consultancy and Strategy

    Technology decisions affect security, productivity, cost and business growth. We provide strategic advice around infrastructure, cloud services, cyber security, budgeting, business continuity and future technology requirements.

    Explore our IT Consultancy

  • Remote IT Support

    Our remote IT support covers user troubleshooting, applications, software configuration, access problems, device issues and cloud services. Where an issue can be resolved through secure remote access, we deal with it quickly and keep disruption to a minimum.

    Explore our Remote IT support

  • On-Site IT Support

    Hardware failures, office connectivity, network faults and infrastructure work may require hands-on support. As a London-based IT support company, we can provide planned on-site IT support when the situation calls for it, without building unnecessary site visits into your support model.

    Explore our On-site IT support

  • Hardware and Software Procurement

    Your leadership team should not be spending hours comparing laptop models, finding suppliers or working out which licence a new employee needs. We help specify, source and organise hardware and software procurement, then make sure devices and services are set up correctly.

  • Emergency and Business-Critical IT Support

    When something stops your team working, you need responsive support and clear ownership. We prioritise issues by business impact, get the right engineer involved and keep you updated until the problem is resolved. IT support is available from 7am to 7pm on weekdays, with 24/7 managed security services available for businesses that need additional protection.

Reliable IT support to keep your London-based business running.

Talk to an IT Advisor

Small Business IT Support Options

The right support model depends on how your business is structured today. We build the service around the level of ownership you actually need.

  • IT Admin

    Fully Managed IT Support

    Yes

    Co-Managed IT Support

    Yes

  • User & device management

    Fully Managed IT Support

    Yes

    Co-Managed IT Support

    Yes

  • Microsoft 365 & Google Workspace

    Fully Managed IT Support

    Yes

    Co-Managed IT Support

    Yes

  • Strategic IT guidance

    Fully Managed IT Support

    Yes

    Co-Managed IT Support

    Yes /Available

  • Managed Cyber Security

    Fully Managed IT Support

    Add On

    Co-Managed IT Support

    Add On

  • 24/7 MDR

    Fully Managed IT Support

    Add On

    Co-Managed IT Support

    Add On

  • Customer Experience Guarantee (CXA)

    Fully Managed IT Support

    Yes

    Co-Managed IT Support

    Yes

  • Dedicated Technology Advisor

    Fully Managed IT Support

    Yes

    Co-Managed IT Support

    Yes

  • Proactive monitoring & maintenance

    Fully Managed IT Support

    Yes

    Co-Managed IT Support

    Yes

  • Onsite support

    Fully Managed IT Support

    Add On

    Co-Managed IT Support

    Add On

  • Specialist projects & consultancy

    Fully Managed IT Support

    Add On

    Co-Managed IT Support

    Add On

Fully Managed IT Support

For businesses without an internal IT department, fully managed support gives one team responsible for day-to-day IT operations. This covers the onboarding process, users, devices, support, security, cloud services, suppliers and ongoing IT management. You also get strategic guidance, so important IT decisions are not made in isolation every time something changes.

Co-Managed IT Support

If you already have an internal IT team, Sereno can work alongside them. Our co-managed IT support can provide additional helpdesk capacity, IT project support or specialist expertise across areas such as Microsoft 365, cyber security, infrastructure and cloud services. Your internal team keeps ownership where it makes sense. We take responsibility for the areas where they need support.

Project and Specialist Support

Not every business needs complete outsourcing. You may need help with a cloud migration, security improvement, infrastructure project, office move or another piece of work that requires skills or capacity you do not currently have internally.

Transparent Support Pricing

Small business IT support pricing should reflect your team size, environment, security needs and the level of ownership you want from us. Managed support can be priced on a clear per-employee basis, making costs predictable and easier to scale as your business changes. Additional projects, on-site work or specialist services are agreed clearly rather than appearing as unexpected extras. During the first year, Sereno's managed support model is built around a 30-day rolling partnership rather than locking you into a long contract.

Get your custom support quote.

View IT support pricing

The Advantages of IT Support for Small Businesses

  • More Cost-Effective IT Management

    Hiring in-house can mean relying on the bandwidth of one person. When they’re on holiday, off sick or unavailable, your IT support can quickly become stretched. You also need the tools, training and specialist expertise to handle issues outside their skill set. Outsourced IT support for small companies can give you access to a wider team and mature support processes at a more predictable cost.

    • Outcome: Clearer IT costs and broader capability without the overhead of building the same team internally.

  • Proactive Support

    Break-fix, or reactive support waits until somebody reports a problem. Proactive monitoring, ongoing advice, patching, maintenance and recurring issue analysis help identify risks earlier and reduce the number of avoidable problems.

    • Outcome: Fewer recurring technical issues and less time lost to the same problems coming back.

  • Scalability

    IT becomes more complicated as a business grows. More people means more devices, accounts, licences, permissions, cloud services and security requirements. A managed service provider can put consistent processes and standards in place early, then scale them as the organisation grows.

    • Outcome: Your IT environment grows in a controlled way instead of becoming harder to manage every time the business adds people.

  • Faster Response and Resolution

    Fast response matters, particularly when somebody cannot work. But speed alone is not enough. A ticket can be answered quickly and still remain unresolved for hours. Good service means acknowledging the issue, setting the right priority, keeping the user informed and taking responsibility until it is properly dealt with.

    • Outcome: Less downtime, clearer communication and fewer requests that disappear into a support queue.

  • Enhanced Security

    Many cyber security weaknesses are operational rather than exotic. An old user account. A laptop that has missed patches. Weak access controls. Inconsistent MFA. A backup nobody has tested. Bringing cyber security into everyday IT management helps those controls remain consistent rather than relying on occasional security projects.

    • Outcome: Security becomes part of normal IT operations rather than something reviewed only after a problem.

  • Less IT Admin for Your Team

    Starters, leavers, access requests, laptop orders, licence changes and supplier conversations all take time, creating a significant administrative burden. We take ownership of those processes instead of leaving them with office managers, directors or whoever happens to know the most about IT.

    • Outcome: Less internal workload and more time for your team to focus on their actual roles.

  • Better Business Continuity

    Business continuity is about knowing how the organisation will keep operating when technology fails. That includes backups, disaster recovery, cloud systems, network resilience and clear responsibilities during an incident.

    • Outcome: The business is better prepared for disruption, with less reliance on last-minute decisions during an emergency.

Our Workflow

Our IT Support Workflow

A clear four-step path from first conversation to going live, hover any step to see what happens (and how little you have to do).

  1. Day 1

    Contact us

    A quick chat

    Get in touch with our IT support team and we'll talk through your requirements, no pressure, no jargon.

  2. Handover

    Stress-free onboarding

    We do the lifting

    We manage the whole handover, including working with your previous IT partner, so the switch is smooth and invisible to your team.

  3. Audit

    In-depth audit

    A short walkthrough

    Our experts assess your systems and interview key people to deliver a tailored IT roadmap for where you are and where you are heading.

  4. Live

    Always on-hand

    Whenever you need us

    Once the support contract is signed, we're there for you, strategic advice when you need it and prompt fixes when you don't have time to wait.

Reliable IT support for small business in London is just a call away.

Speak to our team

Why Sereno

Why Choose Sereno IT To Support Your Small Business?

  • Full Ownership

    We take responsibility end to end. If an issue crosses multiple systems or suppliers, we help coordinate it rather than bouncing the problem back to you. No chasing. No finger-pointing. No unnecessary handovers.

  • Proactive, Not Reactive

    We do not want your relationship with IT to consist entirely of support tickets. We provide proactive monitoring, maintenance, regular reviews and root-cause investigation, which helps us reduce recurring problems and spot risks earlier.

  • A Dedicated Technology Advisor

    Day-to-day support and strategic planning should be connected. Your Technology Advisor helps you understand priorities, risks, investment decisions and future requirements, with regular reviews that keep IT aligned with how the business is changing.

  • Direct Access to IT Expertise

    Your team needs access to people who can solve problems, not unnecessary layers between the user and the engineer. Sereno combines responsive service desk support with broader expertise across Microsoft 365, Google Workspace, cyber security, infrastructure and cloud services.

  • Cyber Security Built In

    Security is part of the service, not something considered separately once a year. We help manage the operational controls that affect your security posture every day, including devices, access, updates, cloud configurations and user processes.

  • Clear Service Standards

    We measure more than how quickly somebody answers a ticket. Ownership, communication, quality of resolution and client experience all matter. The aim is support that feels reliable and properly managed, not simply a good-looking SLA report.

  • Flexible and Transparent

    Your support plan should fit the business you have today. Pricing is built around team size, environment and support requirements, with additional work agreed clearly. During the first year, Sereno offers a 30-day rolling partnership rather than relying on a long contract to keep clients.

  • Local London Support

    Sereno is a London IT support provider working with businesses across central London and the wider city. Most issues can be handled remotely, but when something genuinely needs an engineer on site, you have a local team available.

Our Happy Clients

Google Reviews
Sereno IT Support

70 Google reviews

Write a review

  • Dominik

    11 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

    8 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
GrowingWe helped our clients grow 14% on average last year
90%Resolved within 1 hour
12+Years of IT Support Experience
4+ YearsSupporting London businesses since 2022

Reliable IT support for small businesses in London is just a call away.

Book a 15-minute intro call

Partner with the Best

Sereno is Cyber Essentials Plus certified and a Microsoft Solutions Partner, giving you added confidence in the security and expertise behind your IT.

  • Gold Microsoft Partner
  • Google Workspace Partner
  • Cyber Essentials Plus
  • SentinelOne
  • Jamf
  • Ninja RMM
  • Dell Technologies Authorized Partner
  • SonicWall
  • Bitdefender
  • KnowBe4
  • DNSFilter
  • Keeper
  • Datto
  • Veeam Cloud & Service Provider Registered
  • RoboShadow
  • Augmentt
  • Cyber Essentials
  • CloudTango

Industries

Businesses We Support

Small businesses share many common IT challenges, but the way technology supports the organisation varies by sector. We tailor business IT support around how your people work.

We can support businesses in areas including

Sereno provides local business IT support across London, supporting office-based, hybrid and remote teams.

Our engineers can resolve most everyday issues remotely, while our London presence means on-site assistance is available when the work genuinely requires it.

IT support across London

  • London

  • Victoria

  • Mayfair

  • Shoreditch

  • Soho

  • Farringdon

  • Clerkenwell

  • Marylebone

  • Hammersmith

  • London Bridge

  • Fitzrovia

  • Croydon

Case studies

Client Success Stories

London businesses come to Sereno when they want IT to feel organised, owned and easier to manage. Real outcomes for real businesses.

  • 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

Frequently Asked Questions

Absolutely. Like any other type of business today, small businesses rely on technology for efficient business operations. However, small businesses often choose to manage IT on their own, which leads to technology quickly becoming a drainer rather than a driver. Here are the most common issues we see:

  • Directors and managers get pulled into IT work. They end up fixing laptops, dealing with suppliers, resetting passwords, etc. instead of focusing on the business.
  • Software and Microsoft 365 licences get paid for but not tracked or fully used, leading to overspending.
  • New staff members wait for accounts or devices, while ex-employees sometimes keep access.
  • No one monitors patches, updates, or risks, leaving the business exposed.
  • Businesses have no IT direction, with technology spend feeling reactive and no roadmap for scaling or improvement.

With proper IT support, small business can avoid these pitfalls, save leadership time, cut wasted spend, prevent potential issues, and keep IT working as an enabler of growth.

When looking for IT support for small business, companies should go beyond price and check whether a provider can actually remove the day-to-day IT burden from their team. Key factors to consider include:

  • Response and resolution times. How quickly will issues be acknowledged and fixed, and can you track progress in real time?
  • Proactivity, not just reactivity. Do they look for recurring problems, optimise systems, and reduce tickets over time, or do they just wait for things to break?
  • Ease of access. Can staff get support through modern tools like live chat and scheduling, rather than being stuck in phone and email queues?
  • Cyber security solutions built in. Are essentials like patching, MFA, and compliance part of the service, not expensive add-ons?
  • Cost control. Will they review licensing and assets so you only pay for what you actually use?
  • Strategic guidance. Do you get a dedicated advisor who helps plan IT as your business grows rather than just engineers closing tickets?
  • Transparency and accountability. Is there clear reporting on performance, security, and feedback, with the ability to walk away if service drops?
  • Vendor management. Will they deal with third-party suppliers (internet, line-of-business apps, hardware vendors), so you don't have to waste time chasing them?
  • Scalability and flexibility. Can the IT support model grow with you, and do they avoid locking you into long contracts that don't fit future needs?
  • Culture and communication style. Do they speak in plain language and fit with your company culture, or will every interaction feel technical and transactional?

The right IT partner should free your leadership team from acting as makeshift IT managers, cut wasted spend, and give you confidence that your IT systems are secure, scalable, and protect your business.

Yes, we offer fully managed small business IT support. Our comprehensive support includes monitoring and maintenance of IT infrastructure, help desk support, network management, cybersecurity solutions, cloud services, onsite and offsite backups, and more. It's like having an in-house IT team without the overhead, an ideal solution for small companies that want expert support without managing it themselves. As an alternative, if you already have internal IT staff but need extra help, you can use our co-managed IT services, where we work alongside your team to provide extra capacity and specialist knowledge.

The price of IT support for a small business depends on your team size, IT setup and the level of support you need. We provide a personalised monthly price based on your business, so you only pay for the support you actually need.

Get a custom IT support quote to see how much IT support would cost for your business.

Let's talk

Talk to a real person

Pick a time that works for your team or drop us a quick message, we'll respond within 60 minutes during business hours.

What we'll cover on the call

  • How IT is currently handled and where it creates friction
  • Recurring issues, ownership gaps, or security concerns
  • Whether your IT setup supports or slows your growth
  • What fully owned IT would look like for your business
  • Clear, actionable next steps you can use straight away

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

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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 and we'll come straight back to you.

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