Insights

Established Industry Player Sierra Circuits has been a trusted provider of PCB manufacturing and assembly services since 1986, serving over 20,000 customers. Its extensive industry experience and strong reputation present opportunities for sales relationships centered around high-quality PCB solutions and design support.

Innovative Digital Tools The company continuously invests in digital tools such as the Trace Width Calculator and Turnkey Pro online ordering platform, indicating an openness to innovative, tech-driven solutions that could enhance their service offerings or streamline their workflows.

Quality Certifications With ISO-9001:2008, ISO 13485:2003, and MilSpec MIL-P-55110 certifications, Sierra Circuits emphasizes quality and compliance, providing sales opportunities for high-standard, certified materials, and equipment that meet rigorous industry requirements.

Market Focus and Values As a family-run, minority and women-owned business in the electronics manufacturing sector, Sierra Circuits values diversity and specialized service, which could open doors for diversity-focused vendors or bespoke product solutions aligned with their corporate identity.

Growing Digital Presence Their recent website launches and the integration of modern marketing and communication tools suggest a proactive approach to digital engagement, creating an opportunity for sales pitches around digital marketing, online support systems, or community-building solutions to further enhance their customer experience.

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Sierra Circuits Tech Stack

Sierra Circuits uses 8 technology products and services including CIM Technologies, cdnjs, CAM350, and more. Explore Sierra Circuits's tech stack below.

CIM Technologies
Cad & Graphics
cdnjs
Content Delivery Network
CAM350
Design
Webpack
Development
Shopify
E-commerce
Indeed
Human Resource Management System
Application Request Routing
Load Balancers
Paylocity
Recruitment Marketing

Media & News

Sierra Circuits's Email Address Formats

Sierra Circuits uses at least 1 format(s):

Sierra Circuits Email Formats	Example	Percentage
FirstL@protoexpress.com	JohnD@protoexpress.com	86%
FirstLast@protoexpress.com	JohnDoe@protoexpress.com	7%
F.Last@protoexpress.com	J.Doe@protoexpress.com	4%
FLast@protoexpress.com	JDoe@protoexpress.com	3%

Frequently Asked Questions

Where is Sierra Circuits's headquarters located?

Sierra Circuits's main headquarters is located at 1108 West Evelyn Avenue Sunnyvale, California 94086 United States. The company has employees across 4 continents, including AsiaNorth AmericaEurope.

What is Sierra Circuits's phone number?

You can contact Sierra Circuits's main corporate office by phone at

+1-408-735-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Sierra Circuits's official website and social media links?

Sierra Circuits's official website is protoexpress.com and has social profiles on LinkedIn.

How much revenue does Sierra Circuits generate?

As of February 2026, Sierra Circuits's annual revenue is estimated to be $56M.

What is Sierra Circuits's NAICS code?

Sierra Circuits's NAICS code is 334 - Computer and Electronic Product Manufacturing.

How many employees does Sierra Circuits have currently?

As of February 2026, Sierra Circuits has approximately 478 employees across 4 continents, including AsiaNorth AmericaEurope. Key team members include Chief Executive Officer: K. B.Head Of Training: K. M.Head Business Development,India: V. K.. Explore Sierra Circuits's employee directory with LeadIQ.

What industry does Sierra Circuits belong to?

Sierra Circuits operates in the Computers and Electronics Manufacturing industry.

What technology does Sierra Circuits use?

Sierra Circuits's tech stack includes CIM TechnologiescdnjsCAM350WebpackShopifyIndeedApplication Request RoutingPaylocity.

What is Sierra Circuits's email format?

Sierra Circuits's email format typically follows the pattern of FirstL@protoexpress.com. Find more Sierra Circuits email formats with LeadIQ.

When was Sierra Circuits founded?

Sierra Circuits was founded in 1986.

Sierra Circuits

Q: What is Sierra Circuits's official website and social media links?

Sierra Circuits's official website is protoexpress.com. Sierra Circuits has social profiles on LinkedIn.

Q: How many employees does Sierra Circuits have currently?

Sierra Circuits has approximately 478 employees.

Q: What technology does Sierra Circuits use?

Sierra Circuits's tech stack includes Shopify, Fullstory, MySQL, YouTube, Windows Server.

Computers and Electronics ManufacturingCalifornia, United States201-500 Employees

Sierra Circuits has been faithfully serving PCB designers and engineers since 1986, and has worked with over 20,000 customers since then. We specialize in PCB manufacturing and assembly and High-Density Interconnect technology. From PCB layout and design to assembly and manufacturing, Sierra Circuits handles all aspects of PCB production. We provide our customers with unprecedented quality, reliability, and a single point of support. 

No more miscommunication between multiple vendors. No more delays. Sierra Circuits is exactly what you’ve been looking for. We are ISO-9001:2008, ISO 13485:2003 and MilSpec MIL-P-55110 certified.

We are a family-run, minority and women-owned business.

Company Overview

Headquarters: 1108 West Evelyn Avenue Sunnyvale, California 94086 United States
Phone number: +1-408-735-****
Website: protoexpress.com
NAICS Code: 334 - Computer and Electronic Product Manufacturing
Founded: 1986
Employees: 201-500