IT Companies in Portsmouth
Compare IT and cloud providers in Portsmouth. Why the local list is short, how far to widen the search, and what defence supply chain buyers should check.
As of 21 September 2026, Compare the Cloud lists 41 IT providers listed under Portsmouth.
How many IT providers are there in Portsmouth?
Compare the Cloud lists 41 IT and cloud providers in Portsmouth. That is a short list and it describes the directory rather than the local economy, so a Portsmouth buyer should search by service across the wider South East instead of filtering on the city, which would exclude capable suppliers a short drive away.
How far should a Portsmouth business widen the search?
A Portsmouth business should widen the search across south Hampshire and into West Sussex for anything needing an engineer on site, since Southampton, Fareham and Chichester are all comfortably within an hour. For work delivered remotely, including cloud platforms, backup, security monitoring and helpdesk support, there is no useful radius at all and the shortlist should be national. Deciding which of your requirements fall into which category is the first step.
What should a defence supply chain business check?
Organisations in a defence supply chain should check whether a provider can meet the security requirements passed down through their own contracts, which commonly include Cyber Essentials Plus and personnel screening for anyone with access to systems. Ask which engineers hold clearance, whether support is delivered entirely from the United Kingdom, and how the supplier evidences compliance when your customer audits you rather than them.
What does a local provider actually change?
A local provider changes the cost and speed of physical work, meaning installation, hardware replacement, network cabling and attendance when a site is down. It changes nothing about the quality or performance of cloud services, which are identical whoever supplies them. Portsmouth buyers should therefore judge a nearby supplier on how quickly it can put a person in the building, and judge everything else on evidence that has nothing to do with geography.
IT Providers in Portsmouth
Showing 1–24 of 41 providers in our directory
Annata
Portsmouth
Cloud-based solution powered by Microsoft technologies: 25 years of empowering automotive, truck, bus & equipment businesses with industry-focused capabilities.
View ProfileehoD-ai
Portsmouth
ehoD-ai specializes in transforming businesses through custom-tailored, data-driven Artificial Intelligence strategies. Elevate operational efficiency and unlock new opportunities with ehoD-ai.
View ProfileCuratrix Technologies
Portsmouth
Curatrix Technologies provides top-class IT services with a strong focus on cyber security, cloud solutions, and 24/7 support for businesses of all sizes.
View ProfileTwistedPair Ltd
Portsmouth
Connecting people, places, and possibilities through transformative workplace technology. At TwistedPair, we specialise in designing and delivering intelligent technology solutions that make work simpler, smarter, and more human. From AV and structured cabling to enterprise networking and managed services, we integrate systems that support global teams and future-ready workplaces. Founded in 2004, we’ve grown into a trusted partner for some of the world’s most recognisable brands including Uber, LinkedIn, and Adobe. With offices in the UK, Ireland, the Netherlands and Romania, and projects delivered across EMEA and APAC, we combine global capability with local insight. What we do best: Audio Visual Solutions – From LED walls to hybrid collaboration spaces, we create AV experiences that connect and inspire. Structured Cabling & Networking – Scalable, high-performance infrastructure that keeps businesses connected. Telecoms & Managed Services – Always-on support through our global VNOC, ensuring reliability and peace of mind. Project Delivery – Seamless from start to finish, thanks to our in-house design, installation and support teams. Why Twisted? 80% of our business comes from referrals. A testament to our relationships, quality, and agility. We deliver with a global mindset and local execution, always aligning to your goals and culture. We’re committed to Net Zero by 2030, with real action in sustainability, from electric fleets to low-impact partnerships. At TwistedPair, we don’t just deliver technology. We build solutions that connect people, empower teams, and shape the future of work. Visit our website to stay better connected.
View ProfileThe Redshank Group
Portsmouth
The Redshank Group has since its inception in 2013 has striven to provide exceptional service, prices and advice for all of our customers. Our vision was and remains - to become a single source for businesses, offering a wide array of products and services to meet their diverse needs. Guided by our core values We Do the Right Thing We Are Passionate About What We Do We Are Obsessed With Customer Cost Savings We Make Things Simple We Are Customer Centric What sets The Redshank Group apart is our team’s collective experience and dedication to customer satisfaction. We have all come from similar roles, and the limitations we experienced with other companies motivated us to create a more agile and personalized approach. As a result, we blend the stability of a larger organization with the flexibility of a smaller company, ensuring that we can promptly address your needs without the burden of corporate bureaucracy. We take pride in delivering exceptional services that not only add value to you and your operations but take the hard work away from you, our services cater to businesses and organizations of all sizes throughout the UK. At The Redshank Group, we believe in doing right by our customers, and our handpicked team is equipped with excellent knowledge and a customer first mind set to ensure your utmost satisfaction. The Redshank Group offers an extensive range of products tailored to suit your requirements. Our offerings include the highest quality IT equipment, from suppliers such as DELL, HP and Microsoft we can even design and supply custom-built PCs and servers for when off the shelf just doesnt meet your requirements. To aid with your sustainability goals we can if, required supply refurbished or remanufactured IT equipment. We can supply all of your stationery and office supplies efficiently and quickly to keep your workplace running smoothly.
View ProfileDouglas Stewart EDU
Portsmouth
We are a leading distributor with a focus on educational resources and technologies for the education marketplace and businesses across the UK and Europe. Providing market intelligence, insight and connections is a core part of the of the Douglas Stewart offering along with our friendly approach and our outstanding customer service. We’d like you to think of our customer service team as an extension of your own team, helping you source the right solution as quickly and as easily as possible.
View ProfileComputerSupport.com
Portsmouth
We provide business IT support services to small and medium businesses in Portsmouth, New Hampshire and surroundings.
View ProfileSapphire Software Solutions
Portsmouth
Choose the top web development company in Portsmouth, UK delivering high-quality web development services including design, e-commerce, and web app solutions for your business.
View ProfileNovatech Limited
Portsmouth
Portsmouth-based custom PC and IT services company founded 1987, providing bespoke hardware solutions and device lifecycle management.
View ProfileAcronym Voip Ltd
Portsmouth
Family-run Portsmouth technology company providing cloud hosted VoIP phone systems with mobile apps, full fibre broadband and on-demand IT support to homes and businesses. IT assistance is available remotely or on-site, covering maintenance and problem-solving, while travel data eSIMs keep customers connected abroad. The company promotes transparent pricing and tailored solutions rather than one-size-fits-all contracts.
View ProfileAmcall Communications Limited
Portsmouth
Amcall Communications is a Portsmouth-based telecommunications reseller with 25 years' experience providing BT fixed line and broadband services across the UK. Reselling BT and Vodafone networks, it offers lower-cost BT telephone lines with inclusive calls, SIP trunking and call management, voice integration with Microsoft Teams, ADSL and fibre broadband, plus mobile data services for M2M and IoT applications, backed by 24/7/365 support.
View ProfileAMR CyberSecurity
Portsmouth
Portsmouth-based cybersecurity consultancy offering penetration testing, red teaming and security assurance delivered by accredited principal consultants. An approved PCI DSS Qualified Security Assessor company, it also provides Swift CSP consultancy, governance risk and compliance support, security architecture design, operational technology assurance, incident response and defence cyber certification. Serves organisations in sectors including finance, healthcare, government, defence, retail, transport, energy and telecommunications.
View ProfileBespoke Telecoms & CCTV Ltd
Portsmouth
Bespoke Telecoms supplies and installs telephone systems, CCTV, video entry systems and Wi-Fi networks for businesses and residential properties across Hampshire and London. With over 20 years' experience, the company provides design, installation and project management alongside after sales support, working with schools, retail chains, care homes, marinas, property managers and private residences. Services also cover phone lines, broadband and mobile phones.
View ProfileBP Communications Ltd
Portsmouth
Fibre optic cabling specialist based in Portsmouth, formed in 2003, providing installation, upgrades, maintenance and 24/7 emergency repairs of blown optical fibre networks and structured cabling. The company supports shipbuilders and OEMs on Naval Surface Ships, including consultancy for system design and capability insertion work on vessels such as the Royal Navy's Type 45 Destroyers. JOSCAR accredited, ISO 9001:2015 certified, Cyber Essentials Plus certified and an Emtelle Accredited Installer.
View ProfileCoconnect Ltd
Portsmouth
Coconnect provides broadband, safeguarding and cloud services to primary schools, secondary schools and multi-academy trusts. Its connectivity includes full fibre lines meeting DfE standards, with speeds up to 10Gbps and flexible contract lengths. The company offers KCSIE-compliant web filtering, firewalls, anti-virus and monitoring, alongside SD-WAN, cloud phone systems, penetration testing and remote network management. It holds ISO 27001 and Cyber Essentials Plus accreditation.
View ProfileCommunications South Ltd
Portsmouth
Communications South Ltd is a Portsmouth-based telecommunications supplier, established in 1989, serving businesses across Hampshire, West Sussex and Surrey. It provides business telephone systems, on-premise and cloud voice solutions, SIP trunking, business broadband including SOGEA, FTTP and leased lines, structured cabling, WiFi, CCTV and access control, plus support and maintenance. The company also advises on the BT PSTN switch off.
View ProfileCyber KnowHow Ltd
Portsmouth
Cyber KnowHow Ltd provides managed IT support, web design and cybersecurity services for homes and businesses across Wiltshire, Hampshire and West Sussex, with remote support available UK-wide. Support covers devices, printers, Wi-Fi, email and backups, delivered remotely or on-site, often the same day. The company also builds and hosts secure WordPress sites and delivers practical cyber protection including EDR/AV, patching, MFA and phishing awareness training.
View ProfileeasyNetworks
Portsmouth
easyNetworks is a Portsmouth-based telecommunications company supplying business telephony, connectivity and network services. It provides cloud phone systems including CallSwitch One, Microsoft Teams and Gamma Horizon, alongside leased lines, broadband, business mobiles and 5G mobile broadband. The company installs Cat.6 copper and fibre optic data cabling, business WiFi, mobile signal boosters and commercial CCTV, and produces studio-recorded on-hold audio messages. It serves sectors including education, healthcare, construction, charities and care homes.
View ProfileElite Limited
Portsmouth
Elite is a managed services and connectivity provider offering business broadband, resilient Ethernet connections, cloud hosting and managed infrastructure services. It operates a resilient core MPLS network and owns UK enterprise-class data centres, including PCI DSS compliant colocation in central London with a 100% uptime SLA. Its IaaS solutions serve MSPs, operators and systems integrators, while professional services support clients' infrastructure projects.
View ProfileFreedomsat UK
Portsmouth
Freedomsat is a Portsmouth-based internet service provider offering fibre, satellite and 4G/5G broadband to homes and businesses across the UK. Customers enter their postcode to check availability, with packages from £19 a month. Connections work without a telephone landline, and UK-based support teams assist with pre-sales, installation and technical issues. Customers can return or exchange equipment to upgrade when fibre or 4G becomes available in their area.
View ProfileFuture Networks Inc Ltd
Portsmouth
Future Networks Inc Ltd is a Portsmouth-based telecommunications contractor providing a turnkey fibre optic network build service across a national footprint. Founded in 2011, it delivers surveying, programming and streetworks permitting, large-scale civils including chambers and blockage clearance, cabling via PIA-accredited direct labour teams covering blown fibre, sub-ducting and overhead work, plus fibre optic splicing with full documentation.
View ProfileGo Internet
Portsmouth
Go Internet is an internet service provider serving homes and businesses across the Isle of Wight and Hampshire. Residential customers can choose superfast fibre (FTTC/SoGEA), ultrafast full fibre, or rural wireless broadband delivered over the company's own network. Business services include office broadband, VoIP phone systems, private and managed networks, and public WiFi. Established in 2010, it offers support via a knowledge base and service status page.
View ProfileMDI Networks Ltd
Portsmouth
MDI Networks provides IT support and services to businesses, with retainer packages designed for SMEs. Based in Portsmouth, the company offers cloud services for secure data access, security and compliance solutions managing risk and data privacy standards, hardware supply including laptops, desktops, printers and security appliances, and software licensing for Microsoft, Adobe and Exclaimer products.
View ProfileMSnet Ltd
Portsmouth
MSnet provides cybersecurity and IT services to UK businesses, including regulated firms that handle sensitive client data. Its services cover dark web monitoring, endpoint and e-mail protection, internet browsing protection, security awareness training and user credential management, alongside cloud backup and Microsoft 365 support. Offerings are packaged into three tiers - self, managed and professional services - so businesses of all sizes can choose their level of support.
View Profile| Provider | Location |
|---|---|
| Annata | Portsmouth |
| ehoD-ai | Portsmouth |
| Curatrix Technologies | Portsmouth |
| TwistedPair Ltd | Portsmouth |
| The Redshank Group | Portsmouth |
| Douglas Stewart EDU | Portsmouth |
| ComputerSupport.com | Portsmouth |
| Sapphire Software Solutions | Portsmouth |
| Novatech Limited | Portsmouth |
| Acronym Voip Ltd | Portsmouth |
| Amcall Communications Limited | Portsmouth |
| AMR CyberSecurity | Portsmouth |
| Bespoke Telecoms & CCTV Ltd | Portsmouth |
| BP Communications Ltd | Portsmouth |
| Coconnect Ltd | Portsmouth |
| Communications South Ltd | Portsmouth |
| Cyber KnowHow Ltd | Portsmouth |
| easyNetworks | Portsmouth |
| Elite Limited | Portsmouth |
| Freedomsat UK | Portsmouth |
| Future Networks Inc Ltd | Portsmouth |
| Go Internet | Portsmouth |
| MDI Networks Ltd | Portsmouth |
| MSnet Ltd | Portsmouth |
Based in Portsmouth?
Get listed and reach businesses in South East looking for IT services.