About Composite Solutions

For a quarter of a century, CSC has been a trusted source of composite parts and assemblies for aerospace. Originally Northwest Technical Plastics in the Kent-Auburn valley south of Seattle, the Topkey Corporation purchased NTP in 1995 and renamed it Composite Solutions. Topkey, located in Taichung, Taiwan, is a global leader in composites technology. CSC moved to its current, modern facility in Sumner, Washington in 2015, greatly expanding the available equipment and floor space enabling us to even better serve our customers.

Our Facility

CSC has 98,000 square feet of manufacturing space including:

  • 14,000 SF of controlled layup rooms
  • Three autoclaves and two ovens
  • Two 5-axis, CNC routers
  • Automated material kit cutting
  • Multiple finish and paint stations

Our People

Our people are the heart of CSC!

  • Most of our manufacturing employees are seasoned aerospace professionals
  • Half of our salaried employees are degreed engineers
  • Our senior staff has over 150 years combined, aerospace experience

Current and Past Customers

Collins Aerospace
Bell Flight
Boeing Military
Safran (Zodiac)
Torr Technologies
Delta Tooling
Orion Industries
Drone America
Fore Machine

MD Helicopter
PPG Aerospace
PPG Sierracin
Axiom Electronics
Systima Tech.
Bell Canada
BLR Aerospace
Mad Fiber
ACT Aerospace
Triumph Aerospace
Rantech Aerospace

Doing Business With CSC

Composite Solutions Corporation was founded in 1995 and since then has been supplying leading aircraft manufacturers with lightweight, high quality composite systems and components.

More About Us


14810 Puyallup St E, Ste 100
Sumner, WA 98390

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