List Of All cybersecurity company Leads in London
Here's what's listed for cybersecurity company in London right now — 20 businesses with addresses, phone numbers, and ratings. CloudTech24 - IT Support London currently holds the top rating at 5.0★, while the average across the list sits around 4.9★. Everything below is current as of 8/31/2026; click through to any listing for a website, map link, or way to get in touch.
20 results · last updated 8/31/2026
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| Name | Phone | Links | Reviews | Category | |
|---|---|---|---|---|---|
| CloudTech24 - IT Support London36 Albert Embankment, London SE1 7TL | ***7*99••••0 | in**••••*.comRegister to View | 5.0(194 reviews) | IT support and services | |
| NexGen Cyber Limited124 City Rd, London EC1V 2NX | *****66••••0 | — | 5.0(29 reviews) | IT security service | |
| Secure Purple - Cyber Security Firm128 City Rd, London EC1V 2NX | *7**7*9••••1 | as**••••*.comRegister to View | 5.0(22 reviews) | Software company | |
| Defensity Ltd71-75 Shelton St, London WC2H 9JQ | ****9**••••0 | su****••••co.ukRegister to View | 5.0(22 reviews) | IT security service | |
| OutThink Cybersecurity2 Eastbourne Terrace, London W2 6LG | *******••••6 | — | 5.0(19 reviews) | IT security service | |
| Orange Cyberdefense UK80 Cannon St, London EC4N 6HL | ***7*78••••0 | — | 5.0(15 reviews) | IT security service | |
| Hackersdaddy Cyber Security Solutions128 City Rd, London EC1V 2NX | *7*696*••••7 | — | 5.0(12 reviews) | Software company | |
| Reliance Cyber5.0(9) | — | — | 5.0(9 reviews) | — | |
| Net Sec Group5.0(3) | — | — | 5.0(3 reviews) | — | |
| RedscanLevel 6, The News, 3 London Bridge St, London SE1 9SG | ****97*••••0 | — | 5.0(3 reviews) | IT security service | |
| Redflags20-22 Wenlock Rd, London N1 7GU | — | — | 5.0(1 reviews) | IT security service | |
| CYBERR4.9(78) | — | — | 4.9(78 reviews) | — | |
| CloudTech24 - Cyber Security LondonVintage House, CloudTech24, 36 Albert Embankment, London SE1 7TL | ***7*99••••0 | in**••••*.comRegister to View | 4.9(10 reviews) | IT security service | |
| Cyro Cyber LtdQuantum House, 22-24 Red Lion Ct, London EC4A 3EB | *****98••••3 | in**••••**.ukRegister to View | 4.9(10 reviews) | IT security service | |
| Urban Network - London10 White's Row, London E1 7NF | ***77*9••••9 | he***••••co.ukRegister to View | 4.8(44 reviews) | IT support and services | |
| CyberSmart68 Hanbury St, London E1 5JL | ***799*••••0 | he***••••co.ukRegister to View | 4.8(13 reviews) | IT security service | |
| CybanetixLevel 9, The Coade, 98 Vauxhall Walk, London SE11 5EL | ***8*96••••2 | sa***••••*.comRegister to View | 4.5(8 reviews) | IT security service | |
| ITC Secure4.3(15) | — | — | 4.3(15 reviews) | — | |
| IT & Cyber Security Support London (Breathe Technology LTD)124 City Rd, London EC1V 2NX | *7*9***••••7 | lu**••••*.comRegister to View | — | IT support and services | |
| XRAY CyberSecurity20 Wenlock Rd, London N1 7GU | ****8*7••••9 | — | — | IT security service |