A penetration test in the UK costs between £1,500 and £5,000 for a basic external infrastructure test on a small business, rising to £20,000 or more for large organisations with complex environments or compliance-driven requirements. The single biggest factor in pen test pricing is scope specifically, how many systems are being tested, whether the test

ISO 27001 certification in the UK usually costs between £5,000 and £60,000+. A small business with basic systems can complete it closer to £8,000–£12,000, while a mid-sized or complex organisation can easily reach £30,000–£60,000 depending on scope, audit requirements, and existing security maturity. What Actually Determines Your ISO 27001 Cost Most businesses assume cost depends

PCI DSS compliance costs for UK businesses range from under £500 per year for a small merchant using a fully outsourced payment provider, to over £50,000 for a large organisation requiring a full Qualified Security Assessor audit. The single biggest factor in your cost is not your business size. It is your PCI DSS merchant

Cyber security spend for UK businesses in 2026 typically ranges from £2,000 per year for a micro business up to £70,000 or more for a medium-sized organisation with compliance obligations such as PCI DSS or ISO 27001. The exact cost depends on three factors: what compliance frameworks apply to your business, how sensitive the data