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“TH₂ISTLE’s £7.7m round gives Aberdeen tech more this month than in all of 2025 on our record (£2.3m).”

Barrier Networks is an IT services firm based in Glasgow, incorporated in Scotland in 2006 (SC305542).
What they do
“Barrier Networks provides tailored cybersecurity solutions to protect UK businesses. With a comprehensive portfolio of services and solutions, we provide everything you need to build cyber resilience and defend against cyberattacks. Book a free consultation with our cybersecurity experts today.”
In its own words, on barriernetworks.co.uk
In plain speak
They provide cybersecurity services to help UK businesses protect themselves against cyberattacks and build resilience.
Barrier Networks is an IT services firm based in Glasgow. (Companies House, ayeoh's record) It was incorporated in Scotland on 17 Jul 2006 as company SC305542. It was earlier called NIX SECURITY LIMITED and SECURANET LTD. (Companies House) Its website says: “Barrier Networks provides tailored cybersecurity solutions to protect UK businesses. With a comprehensive portfolio of services and solutions, we provide everything you need to build cyber resilience and defend against cyberattacks.” (barriernetworks.co.uk)
It's named in 1 public grant record, from Innovate UK. (Grants, Innovate UK)
Companies House lists 5 active officers, among them Ian Lennox McGowan (director, since Jul 2006), Fiona McGowan (director, since Jun 2020) and Iain Slater (director, since Jun 2020). (Companies House, profile card) Its own website's latest post is “PHP2Shell Shows Why The Time To Patch Is Shrinking”, from 22 Oct 2026. (Latest from Barrier Networks, the post) Its latest filed accounts, for the year to 31 Jul 2025, show 34 employees on average. (Companies House, Financials)
Awarded a £30k Innovate UK grant for "PRISMS - Protocol, Randomness & Information Security Measures for Space"
Next accounts due 30 Apr 2027.
| Year end | Net assets | Cash | Staff |
|---|---|---|---|
| 31 Jul 2025 | £376k | £1m | 34 |
| 31 Jul 2024 | £940k | £1.6m | 29 |
Download everything ayeoh holds on Barrier Networks, free: CSV · JSON-LD. Every row carries its source and date.
Record completeness 68 of 100; not yet held: three years of accounts, turnover, news coverage, funding rounds.
Licensed to sponsor visas (Skilled Worker)
Total exemption full accounts filed for the year to 31 July 2025
A director appointed
Total exemption full accounts filed for the year to 31 July 2024
Total exemption full accounts filed for the year to 31 July 2023
Total exemption full accounts filed for the year to 31 July 2022
Total exemption full accounts filed for the year to 31 July 2021
Won a public contract from Surrey and Borders Partnership NHS Foundation Trust on behalf of NHS Commercial Solutions: Video Conferencing System (£15m)
New shares issued on 1 June 2021 (form SH01, filed 2 July 2021)
Micro-entity accounts filed for the year to 31 July 2020
Won a public contract from Surrey and Borders Partnership NHS Foundation Trust on behalf of NHS Commercial Solutions: Medical Messaging Application (Pager Replacement) (£15m)
Won a public contract from Surrey and Borders Partnership NHS Foundation Trust on behalf of NHS Commercial Solutions: Bespoke Services (£15m)
Won a public contract from Surrey and Borders Partnership NHS Foundation Trust on behalf of NHS Commercial Solutions: Medical Messaging Application (Pager Replacement) (£15m)
Won a public contract from Surrey and Borders Partnership NHS Foundation Trust on behalf of NHS Commercial Solutions: Video Conferencing System (£15m)
Won a public contract from Surrey and Borders Partnership NHS Foundation Trust on behalf of NHS Commercial Solutions: Bespoke Services (£15m)
Incorporated at Companies House
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