Service & Support
Questions / Feedback / Customer Service Issue?  [Click here]
Preparing/sending files for a quote or order  [Click here]
Upload your gerber files and get a quote  [Click here]

Silicon Valley Office:
Sierra Circuits, Inc. (dba Sierra Proto Express)
1108 West Evelyn Ave
Sunnyvale, CA 94086
USA

We are open Mon - Fri, 8AM PST to 5:30PM PST
Call us at (800)763-7503 or (408)735-7137
You can fax us at 408-735-1408
To send your design files for a quote go to
www.protoexpress.com/custom-quote

Customer Service for Web PCBs
EMAIL:
(mention your order number in the subject)
Phone: 800-763-7503
or, preferably, use the Customer Service Screen.
Customer Service for No Touch Orders
EMAIL:
(mention your order number in the subject)
or, preferably, use the Customer Service Screen.
Customer Service for ITAR and Milspec Orders
EMAIL:
(mention your order number in the subject)
Any Military, ITAR or Milspec Orders or Inquiries email to
Account Representative
Every customer, large or small, is assigned an Account Representative.
We are here to help in the order process, to answer any questions about our products, or find answers to your technical questions. Please contact us directly by dialing 1-800-763-7503 or contact us through our website. We will respond to you shortly.
Questions / Feedback / Customer Service Issue?  [Click here]
Preparing/sending files for a quote or order  [Click here]
Upload your gerber files and get a quote  [Click here]
Helpful Links to Remember
› Customer Servicewww.protoexpress.com/customer-services
› Upload your file to get Custom Quote www.protoexpress.com/custom-quote
› Sierra Manufacturing Capabilitywww.protoexpress.com/capability
› Search for your Order/Shipmentwww.protoexpress.com/status
› No Touch Product Pagewww.protoexpress.com/notouch
› Web PCBwww.protoexpress.com/webpcb
› Web PCB Assemblywww.protoexpress.com/webassembly
› High Density Interconnect (HDI)www.protoexpress.com/hdi