Sierra Circuits, Inc., Sunnyvale, California. PCB Manufacturing and Assembly. Since 1986.

Silicon Valley Office (HQ)

Sierra Circuits, Inc.
1108, West Evelyn Avenue
Sunnyvale, CA 94086

Toll free: 800-763-7503
Phone: 408-735-7137
Fax: 408-735-1408

Sunnyvale Office Timing:
8 AM to 5 PM Pacific Time, Mon-Fri
Local time in Pacific Timezone now is 1:23 AM

Map/Driving Directions

Sierra Midwest Sales Office

3100 S Santa Fe Ave
Chanute, KS 66720
Contact Craig Riley: 620-431-0406

Sierra Midwest Office Timing:
8 AM to 5 PM Central Time, Mon-Fri
Local time in Central Timezone is now 3:23 AM

Customer Service

General Service Customer Service Log a customer service ticket at www.protoexpress.com/customerservice Phone: 800-763-7503 X 500	Web PCB Customer Service Log a customer service ticket at www.protoexpress.com/customerservice Phone: 800-763-7503 X 123 Email:
No Touch PCB Customer Service Log a customer service ticket at www.protoexpress.com/customerservice and do indicate that your issue is about No Touch. Phone: 800-763-7503 X 9939 Wendy Garcia Email: (mention your order number in the subject)	BetterDFM Customer Service Email: (do mention your BetterDFM AFV# if available)
Customer Service for Military Work, ITAR OR Milspec Orders For any Military Work and Milspec Orders or Inquiries, send email to

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