List Of All cybersecurity company Leads in Belfast
A current list of cybersecurity company in Belfast: 19 businesses, each with contact information and a rating where one's on record. Ratings run as high as 5.0★ (held by Precept IT), with an average of roughly 4.9★ across all listings. Updated 8/31/2026 — scroll down to compare the full list and follow through to whichever business suits your needs.
19 results · last updated 8/31/2026
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| Name | Phone | Links | Reviews | Category | |
|---|---|---|---|---|---|
| Precept ITForsyth House, Cromac St, Belfast BT2 8LA | *8*****••••0 | he***••••**.itRegister to View | 5.0(222 reviews) | IT support and services | |
| LoughTec - Cyber Security CompanyBankmore Business Park, Doogary, Omagh BT79 0BE | **88***••••5 | — | 5.0(31 reviews) | IT security service | |
| Nemstar Ltd48-60 High St, Belfast BT1 2BE | **89***••••9 | — | 5.0(13 reviews) | Training provider | |
| Vertical Structure (acquired by Instil)27 - 37 Adelaide St, Belfast BT2 8FE | **89*99••••7 | — | 5.0(10 reviews) | IT security service | |
| CloudsmithScottish Provident Building, Donegall Square W, Belfast BT1 6JH | — | — | 5.0(8 reviews) | Software company | |
| Cyber Guarded LtdInnovation Factory, Forthriver Business Park, 385 Springfield Rd, Belfast BT12 7DG | **89***••••0 | in**••••*.comRegister to View | 5.0(6 reviews) | IT security service | |
| Cybit - Managed IT Support & Security Services BelfastUnit 16, The Innovation Center, Queens Rd, Belfast BT3 9DT | *****6*••••0 | he***••••*.comRegister to View | 5.0(4 reviews) | IT support and services | |
| Cybersource NIVictoria House, 15-17 Gloucester St, Belfast BT1 4LS | **89***••••0 | bi****••••*.comRegister to View | 5.0(4 reviews) | Software company | |
| SEP251A St Paul's St, Leeds LS1 2TE | *******••••2 | — | 5.0(4 reviews) | IT security service | |
| SkurioArthur House, 41 Arthur St, Belfast BT1 1GB | **89*8*••••6 | — | 5.0(4 reviews) | Software company | |
| Centre for Secure Information Technologies (CSIT)Queens Rd, Belfast BT3 9DT | **89*97••••0 | — | 5.0(4 reviews) | Research institute | |
| Titan I C SystemsConcourse One - N.I. Science Park Queen's Road, Queen's Island, Queens Rd, Belfast BT3 9DT | **89***••••2 | — | 5.0(1 reviews) | Software company | |
| Version 111th Floor, Lanyon Plaza West Tower, 8 Lanyon Pl, Belfast BT1 3LP | ****8*9••••0 | — | 4.8(30 reviews) | Software company | |
| Proofpoint LtdUnit 11, Weavers Court Business Park, Linfield Rd, Belfast BT12 5GH | *8**8**••••6 | in****••••*.comRegister to View | 4.8(13 reviews) | IT security service | |
| Instil27-37 Adelaide St, Belfast BT2 8FE | **89**7••••8 | en****••••**.coRegister to View | 4.7(21 reviews) | Software company | |
| Rapid7, Belfast Office19 Chichester St, Belfast BT1 4JB | **89*68••••7 | — | 4.7(15 reviews) | Software company | |
| Liberty ITAdelaide Exchange, 24-26 Adelaide St, Belfast BT2 8GD | **89***••••0 | — | 4.1(45 reviews) | Software company | |
| Foxsec Limited19 Arthur St, Belfast BT1 4GA | **89*99••••1 | — | — | IT security service | |
| Nihon Cyber Defence Ltd.Law Society House, 100 Victoria St, Belfast BT1 3GN | *8**9**••••2 | — | — | IT security service |