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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.

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IT Providers in Portsmouth

Showing 25–48 of 50 providers in our directory

Elite 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.

Freedomsat 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.

Future 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.

Go 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.

Inventory Base

Portsmouth

Property inventory and inspection software for UK letting agents, landlords, and inventory clerks with digital reporting and compliance.

MDI 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.

MSnet 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.

One Stop Telecoms

Portsmouth

One Stop Telecoms is an independent telecommunications company based in Portsmouth, working with businesses of all sizes. It supplies business telephone systems spanning traditional PBX, hosted VoIP, SIP and unified communications, alongside fixed lines and calls, line rental, broadband and data services, hosting, and business mobile phones with integrated applications. The company also offers consultancy and 24/7 support and maintenance via a dedicated fault line.

ORDERE

Portsmouth

ORDERE provides a commission-free online ordering system for UK restaurants, allowing them to replace marketplace commissions from platforms such as Just Eat and Deliveroo with a flat monthly fee. The platform offers mobile-first ordering sites with custom branding and domains, customer data ownership, email and SMS marketing campaigns, and instant payouts. A free profit audit report estimates potential annual savings from switching away from third-party delivery apps.

Pear Technology

Portsmouth

Pear Technology is a Portsmouth-based provider of mapping software and data capture equipment. Its PearGIS package links map features to spreadsheet and database data, while PT-Mapper and MapLink support farm, estate, tree and council asset mapping. The OTISS system lets arboricultural consultants, estate managers and local authorities collect field survey data on Android devices and manage trees and outdoor assets via a web portal. Services include cemetery mapping and rural services.

Port Forward

Portsmouth

Port Forward is a Portsmouth-based software company specialising in online community platforms including XenForo, WHMCS and vBulletin. It offers platform migration from outdated systems, data intelligence to extract business insight from fragmented data, custom design and skinning, bespoke plugin development, hosting packages tailored to client needs, and consultation and support for online communities.

Portsmouth Communications Ltd

Portsmouth

Portsmouth Communications installs and maintains business telephone systems, network cabling and audio visual solutions for organisations of all sizes. The company supplies on-premise and cloud-hosted VoIP systems including Ericsson LG, Panasonic and Avaya platforms, alongside structured data and voice cabling, fibre optic installation, CCTV systems, digital signage and business broadband. Services cover schools and commercial premises, with maintenance contracts and call management support available.

Quick Dynamics

Portsmouth

Quick Dynamics implements Microsoft Dynamics 365 Business Central for small and medium businesses, drawing on over 20 years of Microsoft solution experience. Its fixed-price, fixed-scope Business Central Quick Start projects deliver preconfigured ERP systems covering finance, sales and stock. The company also provides Business Central training, system reviews and Microsoft Power Platform services, using Power BI, Power Apps, Power Automate and Power Pages to automate processes and integrate business systems.

RE- IT Support

Portsmouth

Business IT specialists based in Portsmouth and Southampton serving South Coast businesses.

Rocket Computer Services

Portsmouth

Rocket Computer Services provides IT support to schools and businesses across Portsmouth, Hampshire, West Sussex and Southampton. Its specialists deliver ICT support to primary and secondary schools, academies and private institutions, alongside full infrastructure installation, technical support and website services. The company offers bespoke IT packages tailored to business and education clients, helping them choose the most effective support arrangement for their needs.

Searchlight Cyber

Portsmouth

Searchlight Cyber provides a preemptive cybersecurity platform comprising Searchlight Exposure and Searchlight Threat, helping security teams identify hidden risks, prioritise vulnerabilities and take action before threats become incidents. Capabilities cover attack surface management, external and third-party exposure monitoring, accelerated remediation and investigation of threat actors, with use cases including law enforcement. Based in Portsmouth, it publishes research via Searchlight Labs.

SIRIUS ANALYSIS

Portsmouth

Sirius Analysis is an independent consultancy that helps clients solve complex problems and make informed investment decisions. Its core services include Business Case Development, Cost Engineering, Operational Analysis & Data Science, Systems Engineering, P3MO and Digital Services. The company works across the defence, energy and sustainability, nuclear, space and transport sectors.

Talk 2 Talk

Portsmouth

Talk2Talk is a Portsmouth-based telecommunications company supplying business mobile tariffs, telephone systems, broadband connectivity and IT services. It offers bespoke mobile packages with dedicated account management through the UK's major networks, alongside business telecoms, high-speed connectivity and secure IT support for infrastructure and devices. Serving small businesses such as garages, kitchen firms and removal companies, it acts as a single supplier for communications requirements. Based in Hilsea, Portsmouth.

Telsis

Portsmouth

Telsis Communications provides carrier-grade software for network operators, carriers and service providers. Its products include Telsis Cloud Contact, a cloud contact centre platform built specifically for operators, and the Ocean Services Platform for creating and deploying new network services. The company's solutions support subscriber acquisition, customer service, fraud prevention and revenue protection, serving tier 1 and tier 2 telcos and MVNOs across 45 countries.

TestTech Global Ltd

Portsmouth

TestTech Global is an independent software testing company based in Portsmouth, providing software and hardware testing solutions for both product providers and their clients. The company verifies that commissioned or supplied products meet required specifications, and also reviews associated product documentation at user and technical level. Its testing services are aimed primarily at the finance industry, helping identify errors before products reach users.

TRANSALIS

Portsmouth

Transalis manages supply chain data exchanges, electronic data interchange (EDI), and eInvoicing for businesses worldwide. It provides automated document processing, Peppol Access Point eInvoicing, and data tracking solutions to help organisations trade seamlessly with suppliers, retailers, marketplaces, and global commercial networks.

Transparent Communications Ltd

Portsmouth

Portsmouth-based IT solutions provider serving education, business, enterprise and defence sectors. Supplies IT infrastructure including cloud services, networking, cybersecurity and managed IT support, plus hardware such as audio-visual equipment, computing, network storage, peripherals and print devices via its web store. Offerings span secure school networks to data centre builds and enterprise-wide IT management.

We Are Jungle

Portsmouth

We Are Jungle is a web design and development agency based in Portsmouth, working with businesses in Hampshire and beyond. They build bespoke websites using WordPress, WooCommerce, Shopify and Statamic, alongside e-commerce stores, bespoke internal business systems, managed hosting on UK infrastructure, and website maintenance plans from £190 per month without long-term contracts.

Webree

Portsmouth

Webree.com Ltd, based in Southsea, Portsmouth, develops bespoke online systems for remote and cloud-based workforces using its XPOR no-code platform. Applications such as member management, event management, asset performance and legal services tools are built to match clients' working practices and can be managed without software skills. The company handles analysis, development, review, training, go-live and ongoing support.

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