NAS Certification for
Consultants & Professional Services.
Consultants, project managers, quantity surveyors, architects, and professional services firms working in construction and public sector supply chains face increasing compliance and procurement scrutiny. NAS provides independently assessed business compliance certification covering the professional standards, GDPR, and operational compliance obligations that clients require from professional service providers.
Why Consultants & Professional Services Firms Need NAS Certification
Procurement teams increasingly require professional services firms to demonstrate business compliance alongside professional qualifications. GDPR, Modern Slavery Act, Anti-Bribery Act, and professional indemnity insurance are standard PQQ requirements for consultants in construction and public sector supply chains.
NAS Basic — £349/yr
Health and safety policy and arrangements, risk assessments and method statements, COSHH, CDM duties, training, insurance and subcontractor checks — the SSIP core criteria.
NAS Bronze — £749/yr
Everything in Basic plus legal identity and licences, employers’ liability insurance, data protection, equality, complaints handling, employment terms and right-to-work checks.
NAS Silver — £950/yr
Everything in Bronze plus environmental and waste management, quality and corrective action, governance and conflicts of interest, competition law, pensions, working time and subcontractor approval.
NAS Gold — £1,150/yr
Everything in Silver plus 13 procurement modules: financial standing, anti-bribery and integrity disclosures, tax status, cyber security, ethical supply chain, sustainability and Building Safety Act readiness.
What You Get With NAS Certification
Certification goes beyond a certificate — it opens doors and gives you tools to grow.
Public Register Listing
Public sector and construction clients verify your NAS status on the NAS free register.
Professional Services Tenders
Access project management, consultancy, and professional services opportunities across public and private sectors.
Trade-Specific Questions
Your questionnaire includes questions for your trade, so the evidence you submit matches the work you actually do.
Assessor-Reviewed Evidence
An assessor checks your actual documents, so your certificate carries weight with buyers.
Expiry Reminders
Reminders before your NAS certificate, and dated documents you have submitted such as insurance, expire.
Annual Re-Assessment
Renewal includes a fresh evidence review, so buyers know your certificate reflects current documents.
Frequently Asked Questions
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