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IT Services Companies in Portsmouth: 918 Active Firms (2026)
IT services companies in Portsmouth deliver managed support, infrastructure, cybersecurity and systems integration for local organisations.
Buying decisions tend to sit with finance directors, operations managers and overstretched internal IT leads, rather than specialist procurement teams. Demand clusters around outsourced helpdesk cover, device and network administration, cyber risk work, cloud tenancy management and systems integration for small and mid-sized organisations. Customers are usually business, public-sector, education, healthcare or industrial buyers in Portsmouth and its surrounding metropolitan area. Engagements tend to mix monthly retainers with installation, migration, monitoring and maintenance projects, so providers need enough technical breadth to handle recurring tickets while still staffing occasional site-heavy implementation work.
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Portsmouth has 918 actively trading IT services companies, making the local cohort broad but mostly small-company in character. Reported headcount totals 875 people, so employment is spread thinly across the group rather than concentrated in a large visible labour base. Revenue above £5M appears in 4 cases, while 174 were incorporated since 2022. That mix points to a market with many owner-managed support providers and recent entrants, plus a much smaller band of firms with the revenue profile normally associated with multi-site contracts or larger managed-service portfolios.
Privacy, security and contractual assurance shape the sector more than licensing. Providers handling customer systems must work within GDPR, with the ICO setting expectations on personal-data governance, breach handling and processor obligations. Public-sector, education and healthcare buyers often add their own supplier checks, especially around remote access, administrator privileges, resilience and incident notification. For managed-service contracts, the practical market structure sits in service levels, liability caps, subcontractor control and evidence of operational discipline. Smaller providers can compete locally, but they tend to face the same assurance burden as larger suppliers when client systems are sensitive.
The cohort appears weighted towards local managed-service operators rather than platform-scale software vendors. Demand tends to follow outsourcing cycles, cyber assurance requirements and cloud-administration churn, which favours firms able to combine recurring support with occasional project work. Scale-up scarcity may keep the market fragmented, with acquisitions more likely where a buyer wants engineers, customer contracts or a nearby service desk. Margin pressure also looks persistent: customers expect broader security coverage, but many providers still sell into budget-conscious organisations. The firms that endure are likely to be those that can document controls without losing the responsiveness that local clients value.
918
Active firms
2026
4
£5M-plus firms
Above the revenue threshold
174
Recent incorporations
Incorporated since 2022
Key facts
About 1% of the trading cohort reports turnover above £5M (4 of 918 firms) — the rest sits below that revenue band.
18% of the cohort was incorporated since 2022 (174 firms), so a sizeable share is in its first few filing cycles.
Portsmouth IT services providers tend to sell retained managed support alongside project-led infrastructure and systems-integration work.
Cybersecurity and compliance work sits close to operational IT support, especially where buyers lack larger in-house technical teams.
The local market appears fragmented, with lean consultancies and delivery-led managed services firms competing for retained support and project work.
Top Portsmouth IT Services companies
CARRERA (UK) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides managed IT support and services for businesses, including service desk support, infrastructure and networking, Microsoft 365 and email management, cybersecurity services, cloud backups, VoIP…
Serves small and medium-sized businesses in Portsmouth, Southampton, Hampshire and across the South of England, including organisations needing managed IT, telecoms, Microsoft 365 and cyber security…
Financial Health
WeakWeak · -64% CAGR over 4y
Location
MDI Networks Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides managed IT services including technical support, cloud infrastructure, cybersecurity and compliance management. Supplies and configures hardware and software, offers software licensing, and…
Serves SMEs and local businesses in the south of England that need outsourced IT support, cloud services, security and compliance, hardware, and software licensing.
Financial Health
HealthyHealthy · -5% CAGR over 2y
Location
Easy Networks Ltd
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides IT and telecommunications services for businesses, including cloud phone systems, Microsoft Teams telephony, business mobiles, broadband and leased lines, WiFi networks, data cabling…
Serves UK businesses and organisations of varying sizes, including education providers, NHS/healthcare bodies, construction firms, charities, care homes and sports facilities.
Financial Health
StableStable · Hiring · 11% CAGR over 2y
Location
Zinq It Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides managed IT services and technical support for businesses, including cybersecurity services, cyber security training, Microsoft 365 cloud solutions, data protection and disaster recovery,…
Serves businesses needing outsourced IT support and managed services, particularly organisations in manufacturing, engineering, accountancy, construction, recruitment and religious sectors. Targets…
Financial Health
StableStable · Hiring · 19% CAGR over 4y
Location
Redshank IT Services Ltd
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsSupplies IT hardware and office technology and provides IT support services for businesses, including custom-built PCs and servers, networking, cybersecurity, telephony, AV systems, printers, managed…
Serves businesses of all sizes needing IT hardware, support, networking, cyber security, managed print, office supplies and custom PC or server solutions.
Financial Health
HealthyHealthy
Location
Bell Integration
Provides managed IT services and technology consulting, including cloud migration and optimisation, AI and AIOps implementation, cybersecurity, data centre and application migration, IT…
Serves enterprise and SMB organisations, including finance, banking, telecoms, insurance, travel, healthcare and government agencies, with customers across the UK, EU, Middle East and North America.
Location
Carlton Premium Products UK Ltd
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsSupplies IT hardware, computer systems, printers, copiers and AV equipment, alongside office supplies such as stationery, inks, toners and paper. Also provides managed IT support, networking,…
Targets B2B buyers such as IT managers, office/facilities teams and procurement leads in organisations buying IT hardware, managed support, office supplies, print consumables and large-format media.
Financial Health
DistressedDistressed
Location
Redshank Office Supplies Ltd
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsSupplies IT hardware, office equipment and stationery, including computers, printers, inks and toners, and large-format print supplies. Provides managed IT support, networking, AV systems, telephony,…
Serves B2B organisations needing workplace, IT, print and office supply procurement, including office managers, IT teams and facilities buyers. Also targets large-format print and surface-film…
Financial Health
StrongStrong
Location
345 Technology Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides enterprise integration services on Microsoft Azure, connecting business applications and systems to automate data exchange and processes. Supports migration from legacy integration…
Serves enterprises and larger organisations with complex IT estates, especially Microsoft Azure users, businesses migrating from legacy integration platforms, and teams implementing major systems…
Financial Health
HealthyHealthy · Hiring · 49% CAGR over 4y
Location
SIGA Solutions Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides consulting and technical services for Microsoft Dynamics NAV and Dynamics 365 Business Central ERP systems, including implementation, upgrades, development, report writing, performance…
Serves companies using Microsoft Dynamics NAV, Dynamics 365 Business Central or Continia, including private and FTSE businesses across industries, plus Microsoft Partners supporting existing clients.
Financial Health
StrongStrong
Location
skyPurple Cloud Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides cloud computing consultancy for life sciences and biotechnology organisations, advising on multi‑cloud architecture, artificial intelligence integration, cloud cost optimisation, security,…
Serves B2B organisations in life sciences and biotech, targeting technical, data, security and operations teams responsible for cloud infrastructure.
Financial Health
HealthyHealthy · Hiring · 37% CAGR over 4y
Location
Tektraders Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies IT hardware and related products through an online store, including computers, tablets, printers, peripherals, networking equipment, software and consumables. Also offers technical support,…
Serves business and education buyers, especially schools, purchasing IT equipment across computers, peripherals, audiovisual, mobile, software and networking categories.
Financial Health
StrongStrong · Growing, Hiring · 41% CAGR over 4y
Location
Visual Digital Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak
Location
ELITE LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · -72% CAGR over 4y
Location
TWISTEDPAIR LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides design, installation and support of workplace technology infrastructure including audio‑visual systems, structured cabling, computer networks and data centre solutions, along with project…
Serves global technology integrators and enterprise businesses, working with IT, AV, infrastructure, project management, design-and-build and workplace teams across offices and data centre…
Financial Health
HealthyHealthy · Growing · 3% CAGR over 3y
Location
FEED4WARD CONTROL LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides design, development and implementation of bespoke industrial automation control systems, including PLC, HMI, SCADA and DCS software. Also manufactures control panels, supplies automation…
Serves businesses in industrial manufacturing, particularly quality-regulated sectors such as pharmaceuticals, energy, and food and beverage, working with companies of varying sizes that need…
Financial Health
StableStable · -78% CAGR over 3y
Location
SIMPLIFY EUROPE LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · -68% CAGR over 4y
Location
WISEMAN ENTERPRISES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · -65% CAGR over 4y
Location
ESSENCIX CONSULTING LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable
Location
BLUE MARBLE ASSOCIATES LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · -76% CAGR over 4y
Location
DRB HOSTING LIMITED
Trajectory
4y · 2020–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
StableStable · -16% CAGR over 4y
Location
Artemis Solutions Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides custom software development services including system architecture, web and mobile applications, API integration, and AI prototyping. Also offers secure hosting, security testing, and…
Serves insurance and financial services businesses, especially enterprise brands and regulated organisations needing secure, compliant digital systems and long-term technical delivery partners.
Financial Health
HealthyHealthy · 0% CAGR over 3y
Location
Terry's News Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak
Location
DOWNS IT CONSULTING LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 4y
Location
ORBIT BUSINESS SOLUTIONS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 4y
Location
Intend Technologies Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · Hiring · 8% CAGR over 5y
Location
Prescott Design & Development Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 4y
Location
PRCST LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StrongStrong
Location
Event Squared Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
BBG PRODUCTIONS LIMITED
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
BRM Computers Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · -7% CAGR over 4y
Location
Xploit-Technology Ventures Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
Shreevishwa Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
7-6 Tech Ltd
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsProvides managed IT and telecommunications services including IT support, Microsoft 365 management, internet connectivity, VoIP phone systems, Wi‑Fi networking, cyber security, and video…
Serves small businesses in Portsmouth and surrounding areas, including multi-site companies and firms with remote workers needing managed IT, telecoms, internet, networking and cyber security support.
Financial Health
WeakWeak · Hiring · 10% CAGR over 3y
Location
WESTLAKE INFORMATION TECHNOLOGY LTD
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides managed IT support and infrastructure services for businesses, including helpdesk support, remote monitoring and maintenance, cloud migration, Microsoft 365 and Azure deployment,…
Sells to businesses needing outsourced IT support, cloud, infrastructure and security services, including organisations with employee workforces and in-house systems. Serves UK companies, with a…
Financial Health
DistressedDistressed · -13% CAGR over 2y
Location
Interpro Technology Solutions Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides managed IT support and consultancy for businesses, including network installation, server virtualisation, cybersecurity, cloud computing, Microsoft 365 management and backup services. Also…
Serves B2B organisations of all sizes in Portsmouth, Southampton, Fareham and Hampshire, including defence-sector clients, professional services firms and companies seeking an outsourced IT partner.
Financial Health
WeakWeak · 3% CAGR over 2y
Location
Curatrix Technologies Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides managed IT support and communications services for businesses, including Microsoft 365 management, cybersecurity monitoring, cloud backup and disaster recovery, hardware supply, and helpdesk…
Serves small and mid-sized businesses seeking outsourced ICT support, Microsoft 365, cyber security and communications services, typically business owners, operations leads and IT decision-makers.
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
SIGNALS AND SOFTWARE LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides managed IT services including IT support, equipment repair, lifecycle management, and infrastructure connectivity. Also refurbishes and remarkets IT hardware, installs Wi‑Fi networks, stages…
Serves small to large B2B organisations in logistics, construction and retail, including IT teams managing warehouses, stores and enterprise hardware estates across the UK.
Financial Health
StableStable
Location
Cobweb
Provides managed IT services and consultancy, including Microsoft 365 and Azure management, cloud migrations, cybersecurity, backup and disaster recovery, network connectivity, and business…
Serves UK organisations, including accountants, charities, construction firms, education providers, financial services, healthcare, insurance companies, law firms and manufacturers.
Location
Cyan Solutions Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides managed IT support for businesses, including system monitoring and helpdesk support, cyber security services, Microsoft 365 and Azure cloud management, cloud communications, and IT projects…
Serves UK businesses and organisations whose teams depend on secure, reliable IT, including leaders seeking outsourced technology support, cyber security, Microsoft cloud and communications guidance.
Financial Health
WeakWeak · -2% CAGR over 4y
Location
COWLEY COMPUTER SOLUTIONS LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides IT support and managed services for businesses, including remote and on-site technical support, network and system maintenance, cybersecurity protection, email migration, virtualisation, and…
Serves businesses needing IT support, including schools, accountancy practices, commercial services firms and power generation organisations, primarily across Hampshire, West Sussex and Dorset.
Financial Health
StrongStrong · Growing, Hiring · 4% CAGR over 3y
Location
ABM Computer Solutions Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides managed IT services for small and medium-sized businesses, including IT infrastructure management, technical support, cybersecurity services, and consultancy to maintain systems, improve…
Serves ambitious SMEs across Hampshire, Surrey and Sussex that need outsourced IT management, support and cyber-security, targeting business owners and managers responsible for reliable IT…
Financial Health
DistressedDistressed · -4% CAGR over 5y
Location
Matrix Business IT Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides managed IT services for businesses, including technical support, remote monitoring, cloud and Microsoft 365 migration, cybersecurity services, VoIP phone systems, data backup and recovery,…
Serves businesses in Hampshire, Dorset, Wiltshire and Sussex, including organisations needing outsourced IT support and those with in-house IT teams seeking technical collaboration.
Financial Health
StrongStrong · Hiring · 16% CAGR over 4y
Location
Rocket Computer Services Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides IT support and maintenance services for schools and businesses, including ICT support for educational institutions, network and infrastructure installation, technical support, and website…
Serves primary and secondary schools, academies, private education institutions, and local businesses across Hampshire, West Sussex, Portsmouth and Southampton seeking outsourced ICT and technology…
Financial Health
StrongStrong · Hiring · 11% CAGR over 4y
Location
360CTRL Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides managed IT and cybersecurity services including cloud hosting, IT support, network infrastructure design and management, backup and disaster recovery, cyber awareness training, and incident…
Serves businesses and organisations with in-house IT gaps or outsourcing needs, including those seeking MSP/MSSP support, cyber resilience and cloud transition assistance.
Financial Health
HealthyHealthy · Hiring · 27% CAGR over 4y
Location
SERVERHOUSE LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsOperates data centres providing colocation and rack space, managed hosting and infrastructure-as-a-service. Supplies fibre connectivity, server relocation, antenna colocation and disaster recovery…
Serves businesses, data centre operators, telecoms/connectivity providers and public-sector organisations in South Hampshire needing colocation, managed hosting, cloud infrastructure or resilient…
Financial Health
StableStable · -17% CAGR over 2y
Location
NUBIS ASSOCIATES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides IT and network consultancy and managed services, including VPN deployment, off‑site backup and disaster recovery, network and system design and builds, 24/7 monitoring, and VoIP telephony…
Serves B2B customers with bespoke networking and communications requirements, including internet service providers, communications providers, data centre operators and businesses from small offices…
Financial Health
HealthyHealthy · -87% CAGR over 4y
Location
TEC CONNECT LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides network infrastructure and connectivity services for businesses, including data and fibre optic cabling, business internet, audio‑visual and meeting room systems, CCTV and door entry…
Serves businesses across all sectors, particularly organisations needing office connectivity, meeting room, telephony, CCTV and network infrastructure support.
Financial Health
WeakWeak · -60% CAGR over 4y
Location
MEDHURST COMMUNICATIONS LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides IT consultancy, managed services and hardware supply, including HPE servers, storage and Aruba networking. Sells PCs, laptops and refurbished devices, and delivers cloud, remote access and…
Serves schools, colleges and other education providers, alongside businesses and legal services firms needing IT infrastructure, devices and managed support across the UK.
Financial Health
StrongStrong · Growing, Hiring · 14% CAGR over 4y
Location
BLUETEQ LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsDevelops and supplies healthcare and business software, including NHS systems for high‑cost drug management, individual funding requests and case management. Also provides managed IT support,…
Serves NHS organisations, healthcare commissioners, trusts, GP federations and private businesses needing software, data, workflow and managed IT support services.
Financial Health
StableStable · Hiring · 6% CAGR over 4y
Location
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How Portsmouth IT Services companies work and how to sell to them
What they do
Portsmouth IT services firms usually earn revenue through managed-service retainers, topped up by project fees for migrations, installations, device rollouts and security remediation. Pricing is often per user, per device or per site, with separate charges for project days, out-of-hours support and any resold licences or hardware. The work is services-led: helpdesk labour, systems administration, network maintenance, cloud tenancy management and integration work sit around the recurring contract. Margins depend on ticket volume, engineer utilisation and how tightly providers standardise their customer environments.
Who they sell to
Most sell to small and mid-sized organisations that need external IT cover rather than a large in-house technology function. Buyers are typically owner-managers, finance directors, operations leads, school or care administrators, and internal IT managers who need overflow capacity. Routine support deals are often won through direct sales, referrals and local reputation, while public-sector and education work may require formal quotes, framework participation or tender responses. Sales cycles tend to be measured in weeks for support contracts, but longer when the buyer is replacing an incumbent or testing supplier assurance.
What they buy
These providers tend to spend on service-desk systems, remote monitoring, asset management, endpoint security, backup, identity control, documentation, quoting and customer contract management. Many also buy accounting support, insurance advice, legal drafting for service-level terms, recruitment help for engineers and marketing services aimed at local commercial buyers. Infrastructure spending usually follows the customer estate: cloud capacity, connectivity, devices, storage, monitoring and test equipment. Tools that reduce repeated manual work, improve handover between engineers or make recurring billing cleaner are usually easier to position than generic business software.
Why and how to sell to them
Buying intent often appears when ticket volume starts to outrun the service desk, a provider wins a new retained client, loses a senior engineer, takes on public-sector work or faces tougher customer checks around security and remote access. Outbound messages tend to land better when they speak to margin leakage, engineer time, service-level evidence and customer retention, rather than abstract technology improvement. Portsmouth IT services buyers are often pragmatic: useful angles include faster onboarding of new clients, clearer proof for assurance questionnaires, fewer missed renewals and less context switching between support, project and billing work.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
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