ISO 9001 is the world's most widely adopted quality management standard, held by over 43,000 UK businesses and recognised in more than 170 countries. If a customer, tender, or supply chain has asked whether you are ISO certified, ISO 9001 is almost certainly what they mean.
UniCert is a UAF-accredited certification body. Our ISO 9001 certificates are accepted by UK public sector procurement, NHS supply chains and construction frameworks — and are verifiable on the IAF CertSearch global database.
What is ISO 9001 and why does your business need it?
ISO 9001:2015 is the international standard for quality management systems. It provides a structured framework for consistently delivering products and services that meet customer requirements, improving internal processes and driving continuous improvement.
UK businesses pursue ISO 9001 certification for three main reasons: tender and procurement requirements, customer and supply-chain demands, and internal operational improvement. Most UK public-sector tenders and many large private-sector supply chains require ISO 9001 as a qualifying condition.
Who needs ISO 9001 certification in the UK?
ISO 9001 is sector-neutral and size-neutral. UniCert certifies sole traders, SMEs and large enterprises across every industry. It is most commonly required in:
- Construction and civil engineering (CHAS, Constructionline, SSIP frameworks)
- Manufacturing and engineering supply chains
- Professional services and consulting
- Public sector and NHS suppliers
- IT and technology companies
- Facilities management and maintenance
How does ISO 9001 certification work?
UniCert's ISO 9001 certification process follows four stages: gap analysis and document review; management system implementation with our guidance; a Stage 1 document-review audit; and a Stage 2 certification audit on-site or remotely. Your certificate is issued within five working days of a successful audit and is valid for three years with annual surveillance audits.
How long does ISO 9001 certification take?
For most UK SMEs, the timeline from first contact to certificate issued is 8 to 14 weeks. Businesses with existing documented processes can achieve certification in as little as 6 weeks.
How much does ISO 9001 certification cost?
UniCert's ISO 9001 certification starts from £800 per year for UK businesses under 10 employees.
| Company size | Annual certification fee |
|---|---|
| Under 10 employees | From £800/year |
| 11–50 employees | From £1,200/year |
| 51–200 employees | From £2,000/year |
| 200+ employees | Contact us |
