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Sonju Industrial is an award winning Aerospace and Defense Company that has conducted business since 1978. Sonju Industrial is a certi¬fied Service-Disabled Veteran owned small business and operates within a HUBZone location in Kalispell, Montana.


Sonju industrial offers high-quality precision turnkey solutions. Every Customer’s experience is backed with Sonju Industrial’s commitment to on-time delivery, superior customer service, value pricing, and investments in state of the art technology.

  • AS9100 C and ISO9001:2008 Registered
  • Environmentally controlled inspection area 70 +/- 2 degree F
  • SI uses CATIA and MCOSMOS software for its 5-axis Mitutoyo CMM
  • Approximately 1:10 Inspector to production personnel ratio
  • In-house analytical titration testing
  • Service-Disabled Veteran Owned
  • Small Business Certified since 1978
  • HUBZone Certified
  • Cage Code 1L7H2
  • CCR Registered
  • FedBizOps Registered
  • 2010 Raytheon Supplier Excellence Award
  • 2010 Boeing Performance Award
  • Mentor protégé showcase participant
  • 2010 Raytheon Missile System 4-Star Excellence Award
  • 2010 Raytheon Integrated Defense Supplier Excellence Award
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Legal Information
Sonju Industrial | 2902 US Hwy 93 North Kalispell, Montana 59901 | Phone: (406) 752-7979