IT Companies in Belfast

Clarity Compliance Solutions

Belfast

Providing a wide range of Computerised Systems Validation, Business System Validation, Manufacturing Enterprise Systems and Laboratory Information Management Systems services.

TDR IT Solutions

Belfast

Precept IT

Belfast

Precept IT offers innovative IT services for enterprises and SMEs, delivering tailored solutions to elevate your business’s IT infrastructure.

Stem Systems

Belfast

One of Northern Ireland's pioneering managed IT support & services providers. We secure the IT infrastructure of SME's across UK & Ireland.

PulseAI

Belfast

PulseAI provides AI-powered ECG analysis that delivers clinically validated cardiac diagnostics across smartwatches, patches, hospital monitors and defibrillators. It serves healthcare providers, device manufacturers, life sciences companies and investors seeking to improve access to timely cardiac screening in underserved regions and clinical settings worldwide.

4WARD IT

Belfast

4WARD IT is a Belfast-based IT consultancy and communications company providing outsourced IT support, web development, domain and server hosting, Office 365 integration, and broadband installations to small and medium-sized enterprises across Belfast and Northern Ireland. With over 25 years of experience, they focus on delivering streamlined, minimal-disruption technology solutions tailored to business needs.

Aetopia

Belfast

Aetopia is a Belfast-based software company providing digital asset management (DAM) platforms for organisations that need to organise, control and access complex digital content. Its platform covers collections, media, CCTV footage and evidence management, with built-in governance, permissions, configurable workflows, metadata search and sector-specific integrations. The company also offers AI Redact, which automatically removes faces and vehicle plates from video, audio, documents and images.

Airphone Communications Ltd

Belfast

Belfast-based communications company established in 1983, specialising in the sales, service and hire of two-way radio systems across the UK and Ireland. Supplies handheld portables, vehicle radios, IP radio with UK coverage, marine and airband radio, base stations and repeaters from brands including Entel, Motorola and Hytera. Offers radio licensing, systems consulting, maintenance contracts, repairs and calibration, plus taxi meters, data systems and vehicle tracking.

Applied Systems

Belfast

byphone

Belfast

Belfast-based byphone offers a hosted VoIP phone system that can replace or work alongside an existing setup, bringing business and personal numbers and devices under one management portal with drag-and-drop configuration. It supports Snom, Yealink and Polycom desk handsets, mobile, desktop and browser softphones using WebRTC, CRM integration with click-to-dial and screen popping, call recording, analytics and Microsoft Teams. Hosted across three data centres in the UK and Ireland.

Calvert Office Equipment Ltd

Belfast

Calvert Office Equipment is a Belfast-based provider of print and document management solutions, trading since 1957. The company supplies office and production printers, wide format devices and managed print services, alongside automated workflow tools covering information capture, document retrieval, accounts payable and regulatory compliance. Its business intelligence offering includes audit, asset management and analytics dashboards. Engineers based across Northern Ireland support clients in education, legal, manufacturing, finance and utility sectors.

Choice Telecoms

Belfast

Choice Telecoms is a Belfast-based telecommunications provider supplying business telecoms across voice, connectivity and mobile. Services include hosted voice and PhoneLine+ VoIP landline replacements ahead of the 2025 ISDN/PSTN switch-off, fibre broadband, SoGEA and dedicated ethernet connections, plus mobile SIMs, IoT SIMs and handsets. UK-based technical support teams assist customers with speed issues and outages, with a single point of contact.

Data Intellect

Belfast

Data Intellect advise, design and deliver Time Series system solutions for an array of industry applications in demanding environments.

Data Recovery NI

Belfast

Belfast-based data recovery laboratory serving the UK and Ireland since 2002. Data Recovery NI recovers data from failed hard drives of all makes and models, including clicking, beeping or apparently dead disks. Internal repairs such as head and platter exchanges are carried out in a dust-free clean room. A 24/7 emergency service is available, plus on-site recovery where disks cannot leave premises due to insurance or data protection policies. Prices start at £100.

DisplayNote Technologies Ltd

Belfast

DisplayNote ensures sharing and interaction in shared spaces works - without delays, disruption or embarrassment. We are a room-ready collaboration software experience layer that sits on top of hardware. We have a suite of tools for one tap meeting launch, BYOD conferencing, and screen sharing built to reduce setup time, simplify IT management, and keep sessions secure.

Etain

Belfast

Faultline Cyber & Security Ltd

Belfast

Belfast-based consultancy assessing business exposure across cyber security, physical access, suppliers, governance and operational resilience. Services cover exposure assessments, governance, risk and compliance support, supplier and third-party risk reviews, and operational resilience planning. Works with directors and leadership teams to identify hidden risks before committing to tools, certification or technical testing.

Forsep

Belfast

Forsep is a Belfast-built AI phone answering service for UK trades businesses such as plumbers and property firms. It answers calls staff can't take — on jobs or after hours — captures job details, answers common customer questions and books work straight into the diary. A live demo line lets callers test the assistant before booking a demo.

High Performance Networks

Belfast

High Performance Networks delivers managed communications to businesses across the UK and Ireland from offices in Belfast and Dublin. Services include leased lines (Managed Internet Access), managed WAN, business and mobile broadband, hosted firewalls, SIP trunks, hosted telephony and data centre virtualisation. Working alongside clients' IT providers, the company designs tailored solutions, provides real-time monitoring under service level agreements, and holds quarterly reviews as part of its five-stage partnership model.

Home Network Solutions N.I. LTD

Belfast

Home Network Solutions NI is a Belfast-based WiFi and network specialist serving homes and businesses across Northern Ireland. It installs residential and commercial WiFi networks supporting VoIP and video conferencing, single and multi-mode fibre optic cabling with fusion splicing and OTDR testing, point to point wireless links, and IP CCTV and access control systems. For rural premises without adequate broadband, it offers alternative broadband solutions. Clients include hotels, care homes, colleges, warehouses, offices and agricultural sites.

Hosting Ireland

Belfast

Hosting Ireland provides web hosting, domain registration and server services from green-powered Irish datacentres. Its range covers shared cloud hosting, WordPress and enterprise hosting, scalable email plans, website builder tools, SSD-based cloud VPS machines and configurable dedicated servers. Additional products include SSL certificates, email filtering, website backup, reseller and Windows hosting. Plans suit individuals launching a first website through to businesses needing dedicated resources.

Iconic Servers

Belfast

Belfast-based hosting provider offering dedicated servers, KVM virtual private servers, cPanel web hosting, game server hosting, colocation and managed IT services to businesses across the UK and Europe. Operates its own network (AS214271) with a 100/400Gbit backbone and Tier 1 peers, with DDoS protection included across products. Managed IT covers Microsoft 365, Azure and disaster recovery for Belfast and Northern Ireland businesses.

ITS Computing

Belfast

Digitally transforming citizen services for a better future. A partnership approach that drives results and creates value.

Liberty IT

Belfast

Liberty IT is a technology company in Belfast, Dublin and Galway that builds software as the technology partner to Liberty Mutual Insurance. It develops systems spanning customer experiences, data platforms, fraud detection and risk analysis, with engineering, data science, cybersecurity, and product and design teams.