PCB Assembly Services with Online Quote

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Our Customers

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Our Services

PCB Assembly Services

PCB Assembly

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Testing and Inspection

Testing and Inspection

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Box Build Assembly Services

Box Build Assembly

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Cable and Wire Harness Assembly

Cable and Wire Harness Assembly

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Quick Turn PCB Assembly Services

Quick Turn PCB Assembly

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Mixed Technology PCB Assembly

Mixed Technology PCB Assembly

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PCB Assembly Services

From prototyping to production to repair, Sierra Assembly Technology LLC provides a broad range of printed circuit board assembly and manufacturing services. Sierra Assembly PCB assembly services include designing, prototyping, new product introduction (NPI), supply chain management, and assembling a wide range of printed circuit boards. Some more services provided by us are BGA reworking, conformal coating, IC programming, X-ray inspection, in-circuit testing (ICT), automated optical inspection, cable and wire harness assembly, Box Build assembly, and many more. The PCB assemblies that we manufacture follow all the necessary industry standards, and are RoHS compliant. The conformal coating and potting services that we provide are in compliance with the IPC-CC-830B standards. As a part of our PCB assembly services, we also provide prototype assemblies, which help you get a clear picture of the final assembly. This will also help in getting rid of the errors in designing at an earlier stage, thus reducing the overall manufacturing costs. All our PCB assemblies are made in USA.

How It Works

PCB  Assembly Online Quote

Online Quote 

PCB  Assembly Upload Files

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PCB  Assembly Online Order Review

Order Review

PCB  Assembly Order Payment


PCB  Assembly Fabrication

Assembly Fabrication

PCB Assembly Order Delivery


PCB Assembly Order Confirmation

Confirm Received


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Contact Us


  •  Single or Double Sided Placement
  •  Surface Mount (SMT)
  •  Thru-hole
  •  Mixed Technology (SMT/Thru-hole)


  •  Quickturn (1-5 days)
  •  Standard (10 days)
  •  Scheduled Deliveries


  •  No Minimun Order Quantity
  •  Prototype - Production


  •  Passives, smallest size 0201
  •  Fine pitch to 08 Mils
  •  Leadless chip carriers/ BGA, VFBGA, FPGA & DFN
  •  Connectors and terminals

About Us

We are experts of our craft, and our craft is assembling printed circuit boards.
We at Sierra Assembly are a small business at heart, which caters to the needs of large organizations. We have the versatility to accommodate a variety of PCB assembly requirements. Our 30+ years of knowledge and experience , one Thru-hole (PTH) and two Surface Mount (SMT ) assembly lines, and the latest in design, prototyping, NPI, assembly, and testing equipment. We cater to various industries, providing our printed circuit board assembly services for customers in defense, healthcare, Government, and entertainment. We look forward to taking on challenging projects, which can help us enhance our skills and capabilities, and exceed the expectations of clients.
PCB Assembly Services Online


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PCB Assembly Services Secure


Comprehensive pcb assembly capabilities that assures 100% security to your assembly project from conceptualization to delivery.

PCB Assembly Services Cloud


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PCB Assembly and Manufacturing 

Sierra Assembly is among the very few PCB assembly manufacturers, who have the capability to design and develop printed circuit boards that match the exact requirements and specifications given by the clients. Also, we are known for our fastest turnaround times in the industry. Our well-equipped facility consisting of all the advanced, and state-of-the-art machinery makes this possible. The equipment that we use to manufacture PCB assemblies consist of GPD CF-8 Component Former, Ideal Wire Processor, Material Storage with RoHS Compliance Area, PEI OLAMEF TP6 Lead Formation System, Hepco 8000-1 Axial Lead Formation System, and Hepco-APS 1500-1 Radial Lead Formation System. 

Why Choose Sierra Assembly for Your PCB Assembly Requirements?  

Sierra Assembly is a US-based PCB assembly company specializing in a wide range of industrial and commercial PCB assembly services, and manufactures entirely in the US. Apart from this, there are several benefits of working with this company. They are as mentioned below:

  • A comprehensive range of PCB Assembly Services: We provide a broad range of PCB assembly services including THT, SMT, mixed assembly, rigid, flexible, rigid-flex, and Package on Package (POP) packages.
  • 100% Quality Guarantee: At Sierra Assembly, we source all parts from trusted suppliers and manufacturers. All PCB assemblies are subjected to rigorous testing and inspection such as X-ray inspection, in-circuit testing (ICT), functional testing, and AOI. This allows us to assure 100% quality of PCB assemblies.
  • Custom PCB Assembly Services: We understand that PCB assembly requirements vary across different industries. For instance, the PCBs used in the military and defense industry are different from the PCBs used in the computers and business electronics. We meet the requirements of clients across these industries by providing them custom PCB assembly services. Our experts will work with you to understand the requirements and they will suggest the solutions accordingly.
  • Quick Turn PCB Assemblies: We assure the fastest turnaround times in the industry. Our lead times vary from 1–2 weeks on complex projects and 1–5 days on standard projects. If all the parts are sourced from our Open Parts Library (OPL), the delivery times can be easily accelerated.
  • Small, Prototype, and Large Volume Production: As an experienced PCB assembly service, we can work on all types of projects. It doesn’t matter, whether you require a single PCB assembly or over 10,000 pieces, we can serve you better.
  • World-Class Customer Service: Sierra Assembly believes in customer-centric PCB assembly service. As a part of it, you will be working with a dedicated project manager, as well as the assembly and engineering teams.

Are you looking for quality circuit board assembly and manufacturing services? We are just a call away. Sierra Assembly is one of the leading PCB manufacturing company that you can trust for high-quality circuit boards. Reach out to us at 909-606-7700, or mail us at sales@sierraassembly.com . Besides, you can also request a quote from us, if you have any specific requirements.   

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