AS9100 certification proves your quality management system meets the aerospace industry standard: everything in ISO 9001, plus additional requirements for safety, risk, traceability and reliability that aviation, space and defense customers demand. For most aerospace suppliers, holding AS9100 certification is the price of entry to win and keep contracts.
In the systems we build for aerospace and manufacturing clients, first-time certification comes down to preparation, not luck. This guide walks through what AS9100 is, what it requires, how the process works, and what it costs.
Key takeaways
- AS9100 = ISO 9001 plus aerospace-specific requirements.
- It is required by customers, not by law.
- The path is: gap analysis, build the QMS, internal audit, then a two-stage certification audit.
- Preparation drives first-time success far more than company size.
What is AS9100 certification?
AS9100 is the quality management standard for the aviation, space and defense industry, maintained by the IAQG and published through SAE. AS9100 certification means an accredited certification body has audited your system and confirmed it meets the standard. It builds directly on ISO 9001, so an AS9100 certificate also demonstrates ISO 9001 conformance. If you want the full comparison, see AS9100 vs ISO 9001.
Who needs AS9100 certification?
Any organization that designs, makes or distributes parts for aerospace and defense typically needs it, because prime contractors flow the requirement down their supply chain. If a customer has asked for AS9100, or you want to compete for aerospace work, certification is effectively mandatory. The related standards cover the whole chain: AS9100 for manufacturers, AS9110 for maintenance and repair, and AS9120 for distributors.
AS9100 certification requirements
AS9100 contains all of ISO 9001, then adds aerospace requirements on top. The additions that most often catch suppliers out are product safety, risk management, configuration management, counterfeit-part prevention, first article inspection and control of special processes. We cover the full list in our guide to AS9100 certification requirements.
The AS9100 certification process, step by step
- Gap analysis. Compare your current system against AS9100 to see exactly what is missing.
- Build the QMS. Develop the processes, quality manual and documentation the standard requires.
- Apply the core tools. Put APQP, PFMEA, control plans and PPAP to work, guided by AS9145.
- Internal audit and management review. Run a full internal audit, close the findings, and hold a management review.
- Stage 1 audit. The certification body checks your documentation and readiness.
- Stage 2 audit. The certification body audits your system in action and issues the certificate.
How long does AS9100 certification take?
Most organizations reach certification in a few months, but the real driver is your starting point, not the standard. A mature ISO 9001 system upgrades faster than a company building quality from scratch. A gap analysis gives you a realistic schedule before you commit.
How much does AS9100 certification cost?
Cost depends on your size, number of sites, current gap, special processes and the certification body’s audit fees, plus ongoing surveillance audits. AS9100 usually costs a little more than ISO 9001 because there is more to document and verify. Our guide to AS9100 certification cost breaks down each driver.
Maintaining your AS9100 certification
Certification is a three-year cycle with annual surveillance audits and a recertification audit at the end. Keeping it means running internal audits, closing nonconformities with real corrective action, and holding management reviews. A system that stays live between audits is far easier to keep than one that is rebuilt each year.
The OQS AS9100 certification roadmap
Across the certifications we support, the suppliers who pass the first time tend to do these five things early:
- Start with a gap analysis so money is spent building what is missing, not rewriting what works.
- Name process owners so the QMS belongs to the business, not the quality department.
- Build risk and product safety in from the start, not as an audit afterthought.
- Run a real internal audit and fix findings before the certification body ever arrives.
- Keep the system live with scheduled audits and reviews all year.
AS9100 certification FAQ
Is AS9100 mandatory? Not by law, but customers commonly require it, which makes it mandatory in practice.
Do I need ISO 9001 first? No. AS9100 already contains ISO 9001, so you can certify straight to AS9100.
How do I get started? A consultation and gap analysis map your path. We help through our AS9100 consulting service.
Ready to get AS9100 certified?
Optimal Quality Solutions helps aerospace, defense and manufacturing teams build audit-ready quality systems, with a 98% first-time certification success rate and 15+ years of hands-on experience.
