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CNC Machining Shops

Best Aerospace CNC Shops in California

California is home to one of the largest aerospace manufacturing ecosystems in the world, with suppliers supporting Boeing, Lockheed Martin, SpaceX, and hundreds of Tier 2 and Tier 3 OEMs. These CNC machining shops carry AS9100 certification, signaling a documented quality management system purpose-built for aerospace traceability and defect prevention. Use this list to shortlist suppliers for precision airframe, engine, and structural components.

Why these suppliers?

  • ✓Every shop on this list holds AS9100 certification — the aerospace quality management standard required by most prime contractors and Tier 1 suppliers.
  • ✓California's concentration of aerospace primes means these shops have proven experience with aerospace-grade alloys such as titanium, Inconel, and 7075 aluminum.
  • ✓We verify each listing's certification status, capabilities, and contact information so you can shortlist confidently without lengthy qualification research.

214 verified suppliers found

VIAN Enterprises Inc.
Auburn, California

9100 (9001:2015) certified. Certification body: International Standards Authority. Structure: Single Site.

(530) 885-1997Website
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Vianh Company, Inc.
Garden Grove, California

9100 (9001:2015) certified. Certification body: International Standards Authority. Structure: Single Site.

(714) 590-9808Website
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VM Services, Inc.
Milpitas, California

9100 (9001:2015) certified. Certification body: DQS Inc.. Structure: Single Site.

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VMHC Aerospace
Anaheim, California

9100 (9001:2015) certified. Certification body: International Standards Authority. Structure: Single Site.

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VT Fabrication
Anahiem, California

9100 (9001:2015) certified. Certification body: IAPMO SCB. Structure: Single Site.

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Vulcan Metal Group, LLC
Torrance, California

9100 (9001:2015) certified. Certification body: National Quality Assurance, USA. Structure: Single Site.

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W Machine Works Inc
San Fernando, California4.7(3)

WMachine.com - a great premium domain available for sale.

+1 818-890-8049Website
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WARP13 CORP dba San Diego Machine Group
San Marcos, California

9100 (9001:2015) certified. Certification body: IAPMO SCB. Structure: Single Site.

760 262 1000Website
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WCM Manufacturing LLC
Cypress, California

9100 (9001:2015) certified. Certification body: Aviation Suppliers Association dba ASACB. Structure: Single Site.

+1 714 901-1998Website
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Widget Makers, Inc.
Inglewood, California

9100 (9001:2015) certified. Certification body: Perry Johnson Registrars, Inc.. Structure: Single Site.

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Wyatt Precision Machine, Inc.
Long Beach, California

9100 (9001:2015) certified. Certification body: IAPMO SCB. Structure: Single Site.

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XKT Engineering Inc.
Vallejo, California

9100 (9001:2015) certified. Certification body: National Quality Assurance, USA. Structure: Single Site.

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XYZ CMM Solutions
Anaheim, California

9100 (9001:2015) certified. Certification body: IAPMO SCB. Structure: Single Site.

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ZI Machine Manufacturing
El Dorado Hills, California

9100 (9001:2015) certified. Certification body: Amtivo (USA), Inc.. Structure: Single Site.

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Frequently Asked Questions

What certifications should an aerospace CNC shop in California have?
For aerospace work, AS9100 is the baseline quality management certification. Many California aerospace shops also hold ITAR registration for defense work, Nadcap accreditation for special processes (heat treat, coatings, NDT), and ISO 9001 as an underpinning system. Always confirm the certification scope covers the specific processes and materials you need.
How do I verify an aerospace CNC shop's AS9100 certification?
Ask the supplier for a copy of their AS9100 certificate, which should show the issuing registrar (such as BSI, DNV, or Bureau Veritas), the certificate number, and the scope of registration. You can cross-check active certificates in the OASIS database maintained by IAQG (International Aerospace Quality Group) at iaqg.org/oasis.
What is the difference between AS9100 and ISO 9001 for CNC shops?
ISO 9001 is a general quality management standard applicable to any industry. AS9100 includes all ISO 9001 requirements plus additional requirements specific to aerospace: configuration management, first-article inspection (FAI), counterfeit parts prevention, key characteristics, and risk management. Most aerospace prime contractors require their CNC machine shops to hold AS9100, not just ISO 9001.

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