Key Takeaways
- AS9100 certified companies run audited, written processes built for aerospace and defense work.
- Big OEMs like Boeing, Lockheed Martin, and Raytheon require AS9100 certification from suppliers.
- Certification is just the start. Ask how a shop’s specific work gets checked and verified.
Can your shop prove its quality every time, not just once? That’s the real question behind AS9100 certified companies. AS9100 is the world standard for quality in aerospace, space, and defense work. It builds on ISO 9001 and adds rules built just for this industry, from custom metal fabrication runs to the paper trail that proves a part is safe to fly.
For buyers, that means fewer surprises. AS9100 certified companies get audited on a regular basis. The systems behind your parts get checked, not just the parts themselves.
What Is AS9100 Certification?
AS9100 is a voluntary quality standard for aerospace and defense suppliers. It sets rules for how a shop plans, builds, and checks its work. It also covers outsourced steps, like turning and milling or plating, so those get watched just as closely as in-house work.
It’s voluntary, so not every shop in this space holds it. A shop that earns AS9100 certification signs up for ongoing training, paperwork, and outside audits. That’s well beyond what the law requires.
What Do AS9100 Certified Companies Actually Control?
The standard exists to close the gaps where quality problems start. AS9100 certified companies build clear, written processes around each of these:
- Counterfeit part prevention. Shops catch and screen out fake parts before they reach an assembly. This matters most on parts made through brass milling or other precision work.
- First article inspection. Any new or changed part gets checked in full against drawings and specs before a full run starts.
- Foreign object detection. Shops find and remove loose debris that could damage equipment, slow a job, or hurt someone on the floor.
These rules also cover project planning and internal audits. Schedules, resources, and risk get tracked with the same care as the parts. The payoff: less waste, fewer defects, and fewer customer audits, because the shop already did the checking.
Why Defense and Aerospace Programs Require It
Most prime contractors won’t hire a supplier unless they’re AS9100 certified. Boeing, Lockheed Martin, and Raytheon all require it. Why? The standard already proves a shop can hit quality and delivery targets at the same time. That matters just as much for defense welding work as it does for finished flight hardware.
Every major aerospace regulator backs this certification, including the FAA, the Department of Defense, and NASA. Suppliers who also work with NADCAP-approved platers add one more layer of checked, verified work. That matters when a part’s finish is just as critical as its size.v
How to Vet an AS9100 Certified Manufacturing Partner
Certification is a starting point, not the whole story. Ask a supplier how their AS9100 process actually plays out day to day. A shop doing high-volume CNC manufacturing should walk you through real inspection records, not just show you a certificate.
That same test applies to specialized work. Need military machining? Ask how tolerances and material certs get tracked on the shop floor, not just listed in a sales deck. Need parts joined or finished? A supplier offering aluminum dip brazing services should show you how they check bond quality on every single batch.
The best shops will answer these questions fast, because the proof already exists. That’s the whole point of the standard.
Ready to Work With an AS9100 Certified Partner?
Get parts built to a standard that aerospace and defense programs already trust. Our team can show you exactly how our certification shows up in your next project.
