About Sierra Circuits - Contact Us

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 12:13 AM

Map/Driving Directions

Customer Service

General Service Customer Service

Log a customer service ticket at www.protoexpress.com/customer-services

Phone: 800-763-7503 X 500

Web PCB Customer Service

Log a customer service ticket at www.protoexpress.com/customer-services

Phone: 800-763-7503

BetterDFM Customer Service

No Touch PCB Customer Service

Log a customer service ticket at www.protoexpress.com/customer-services and do indicate that your issue is about No Touch.

Phone: 800-763-7503 X 9939 Wendy Garcia

Customer Service for Military Work, ITAR OR Milspec Orders