UK IT companies serve the world's most demanding enterprise and government clients — from NHS Digital to HMRC, from global banks to FTSE 100 corporates. ISO 9001 and ISO 27001 are the dual credentials that open Crown Commercial Service frameworks, NCSC-recognized security programs, and international client qualification.
G-Cloud
CCS framework — ISO 27001
NCSC
ISO 27001 alignment
UKAS
UK accreditor — essential
£500
ISO 9001 from
UK Government IT — ISO Requirements
- G-Cloud (cloud services) — ISO 27001 required for services handling OFFICIAL-SENSITIVE data
- Digital Outcomes and Specialists 6 — ISO 9001 + ISO 27001 for qualifying supplier registration
- NHS Technology Assessment Framework — ISO 27001 alignment required for NHS Digital Solutions
- NCSC Cyber Essentials Plus — Complementary to ISO 27001; together provide comprehensive UK government security credibility
ISO 9001 vs ISO 27001 for UK IT Companies
Most UK IT companies need both, but the sequence matters:
- ISO 9001 first if: you're pursuing general commercial contracts, entering G-Cloud, or targeting CCS management consultancy frameworks
- ISO 27001 first if: your primary clients are NHS, financial services, or government departments handling personal data
- Both together if: actively selling to both government and BFSI clients simultaneously
Cost for UK IT Companies
| Company Size | ISO 9001 | ISO 27001 | Both |
|---|---|---|---|
| Small startup (5-25) | £500 | £1,000 | £1,400 |
| Medium (25-100) | £1,000 | £2,000 | £2,800 |
| Large (100-500) | £2,500 | £5,000 | £7,000 |
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Frequently Asked Questions
Cyber Essentials (including CE Plus) is a UK government scheme providing basic cyber security controls — good as a minimum baseline. ISO 27001 is a comprehensive international standard covering full information security management. UK government contracts handling sensitive data require ISO 27001; basic public sector contracts may accept Cyber Essentials Plus alone.
Not universally required. Startups selling to enterprise, NHS, or BFSI clients increasingly need ISO 27001 for deals above £100k. For B2B SaaS targeting enterprise: ISO 27001 is now effectively required to close large deals. The investment (£1,000) recovers quickly in a single enterprise contract.