Top PCB Assembly Companies in Illinois

Illinois is home to electronics manufacturers that support product development, printed circuit board assembly, and electronic contract manufacturing. PCB assembly companies in Illinois help businesses convert circuit board designs into functional electronic products through component placement, soldering, inspection, and testing.

For OEMs, electronics startups, industrial equipment manufacturers, and procurement teams, choosing the right assembly partner is important for product reliability and production efficiency. The ideal supplier should match the project's technical requirements, component availability, production volume, testing needs, and delivery schedule.

Top 10 PCB Assembly Companies in Illinois

1. Precision PCB

Precision PCB provides printed circuit board assembly and related electronics manufacturing services for businesses developing electronic products. The company works with different PCB materials and supports customers requiring circuit board production for commercial and industrial applications.

Services Offered:

• Printed circuit board assembly
• PCB fabrication and manufacturing support
• Prototype and production assembly
• Assembly for different PCB materials
• Custom electronic manufacturing solutions

Its capabilities may be relevant to businesses looking for a supplier that can coordinate PCB production and assembly. Buyers should confirm component placement options, testing capabilities, and available production volumes before beginning a project.

2. T.J. Assemblies Inc.

T.J. Assemblies Inc. is a manufacturing company based in Bensenville, Illinois. Established in 1973, it specializes in electronic bobbins, coil forms, electronic components, and custom manufacturing and assembly work. Its capabilities also include CNC machining, electrical discharge machining, tooling, and sonic welding.

Services Offered:

• Electronic bobbin and coil form manufacturing
• Electronic component production
• Custom assembly work
• CNC machining and precision manufacturing
• Electrical discharge machining
• Custom tooling and sonic welding

The company's component manufacturing and assembly capabilities may be useful for businesses sourcing specialized electronic components and related manufactured parts. Customers seeking complete PCB population should confirm whether the company supports their specific circuit board assembly requirements.

3. Tecnova Electronics

Tecnova Electronics is an electronic contract manufacturer operating in Waukegan, Illinois. The company provides PCB assembly and broader manufacturing services for industrial and commercial original equipment manufacturers (OEMs). Its approach combines engineering support, component sourcing, manufacturing, and product testing.

Services Offered:

• Surface-mount technology (SMT) assembly
• Through-hole PCB assembly
• Turnkey electronic manufacturing
• Automated optical inspection (AOI)
• X-ray inspection
• Electromechanical assembly
• Cable and wire harness assembly
• Complete box-build manufacturing

Tecnova Electronics supports projects ranging from prototypes to full-scale production. Its integrated manufacturing services can help businesses coordinate circuit board assembly with enclosure integration, wiring, and final product testing.

4. American Precision Electronics, Inc.

American Precision Electronics, Inc. provides electronic manufacturing services from its facility in Carol Stream, Illinois. PCB assembly is a core part of its operations, supported by manufacturing engineering, inspection, and testing capabilities. The company works with customers to evaluate manufacturability and coordinate production requirements.

Services Offered:

• Printed circuit board assembly
• Electronic manufacturing engineering
• Manufacturing process evaluation
• Assembly inspection and testing
• Production planning and support
• Electronic product manufacturing and fulfillment

These services are relevant to OEMs and product developers seeking a manufacturing partner for electronic assemblies. Buyers should discuss component sourcing, board complexity, production quantities, and functional testing requirements before requesting a quotation.

5. Chicago Firmware Factory

Chicago Firmware Factory is included in this list for businesses researching PCB assembly and electronics product development providers in Illinois. Before engaging the company for manufacturing, buyers should verify its current PCB assembly capabilities and determine whether it offers physical assembly, embedded firmware development, or an integrated electronics development service.

Services to confirm:

• PCB assembly and component integration
• Embedded firmware development
• Hardware and firmware integration
• Electronic prototype development
• Circuit board testing and troubleshooting
• Support for production-ready electronic products

For companies developing connected devices, industrial controllers, or embedded electronic products, coordination between hardware and firmware can be important. Confirming the provider's actual service scope will help determine whether it meets the project's needs.

6. ZDM Technologies

ZDM Technologies provides circuit board assembly and PCB design and manufacturing support. Based in Johnsburg, Illinois, the company focuses on helping customers move from electronic designs to assembled boards while addressing component availability and manufacturing requirements.

Services Offered:

• Circuit board assembly
• PCB design support
• PCB manufacturing coordination
• Electronic component sourcing
• Assembly inspection
• Manufacturing engineering support
• Production scheduling and delivery coordination

ZDM Technologies emphasizes inspection and communication during the manufacturing process. Its services may suit businesses that need assistance with component procurement, design improvements, and assembly production. Buyers should share their bill of materials (BOM), board files, and production targets to evaluate project compatibility.

7. KW Fabrication

KW Fabrication is a Chicago-based engineering and manufacturing company that supports product development, PCB assembly, and short-run manufacturing. Its combination of electronic and mechanical capabilities is useful for businesses developing products that require circuit boards alongside fabricated parts or custom enclosures.

Services Offered:

• PCB assembly
• PCB design and manufacturing support
• Electronic and mechanical engineering
• Wire harness assembly
• Subassembly manufacturing
• Sheet metal fabrication
• Product prototyping
• Contract manufacturing

The company focuses on flexible production arrangements, including smaller quantities and short runs. This makes its services worth considering for small businesses, product developers, and industrial equipment manufacturers that need coordinated electronics and mechanical production.

8. A2Z Electronics LLC

A2Z Electronics LLC is an electronics contract manufacturer headquartered in Elgin, Illinois. The company provides PCB assembly and related manufacturing services for OEMs and product developers. Its capabilities cover different production stages, from prototype builds to larger manufacturing runs.

Services Offered:

• SMT PCB assembly
• Through-hole assembly
• Lead-free and RoHS-compliant assembly options
• Prototype and production manufacturing
• Component sourcing and placement
• Automated optical and X-ray inspection
• Cable and wire harness assembly
• Box-build assembly
• Conformal coating and potting

A2Z Electronics supports customers across industries that include medical technology, aerospace, industrial automation, automotive, and consumer electronics. Businesses should verify the specific certifications, testing procedures, and production capabilities required for their applications.

9. Star Werks Inc.

Star Werks Inc. is a manufacturing solutions provider based in Addison, Illinois. The company specializes in custom assembly, component sourcing, kitting, and turnkey manufacturing projects. Its PCB assembly services are supported by product labeling, packaging, and production coordination.

Services Offered:

• PCB assembly
• Turnkey assembly services
• Custom cable and wire harness assembly
• Component sourcing and kitting
• Product labeling and barcode identification
• Custom packaging
• Manufacturing coordination
• Support for finished product assemblies

Star Werks is relevant to businesses that require more than circuit board population and want additional assembly or packaging services. Buyers should specify traceability, serialization, inspection, and final delivery requirements when discussing a project.

10. Aimtron Systems LLC

Aimtron Systems LLC operates in Palatine, Illinois, and specializes in electronics system design and manufacturing for defense, aerospace, and mission-critical industrial applications. The company provides PCB assembly alongside electronic design, product validation, and integrated manufacturing services.

Services Offered:

• Turnkey PCB assembly
• Electronic system design and manufacturing
• Cable assembly
• Product validation and testing
• Electronic product integration
• Box-build manufacturing
• Manufacturing support for mission-critical applications

Its capabilities are relevant to organizations with specialized technical and compliance requirements. Businesses working on aerospace, defense, or other controlled projects should verify applicable certifications, regulatory requirements, and data-handling arrangements before sharing technical documentation.

How to Choose a PCB Assembly Company in Illinois?

Selecting a suitable PCB assembly partner requires comparing technical capabilities, quality procedures, and commercial terms. Consider the following factors before making a decision.

• Assembly technology: Determine whether the supplier supports SMT, through-hole, mixed-technology, fine-pitch, or BGA assembly as required.
• Production quantities: Confirm whether it can handle prototypes, pilot batches, low-volume production, or larger recurring orders.
• Component sourcing: Ask whether the company offers turnkey procurement or accepts customer-supplied components.
• Inspection and testing: Review AOI, X-ray inspection, in-circuit testing, and functional testing options.
• Engineering support: Check whether the supplier can review PCB layouts, BOMs, and manufacturing files before production.
• Quality and compliance: Confirm applicable certifications, traceability, documentation, and industry-specific requirements.
• Delivery and pricing: Compare setup fees, component costs, production lead times, and repeat-order terms.

Conclusion

Illinois offers PCB assembly and electronics manufacturing providers with different strengths, from dedicated circuit board assembly to product engineering, component sourcing, cable integration, and complete box builds.

Tecnova Electronics, American Precision Electronics, ZDM Technologies, KW Fabrication, A2Z Electronics LLC, Star Werks Inc., and Aimtron Systems LLC provide different combinations of electronics assembly and manufacturing services. Precision PCB, T.J. Assemblies Inc., and Chicago Firmware Factory should also be evaluated against the exact requirements of the project.

The most suitable supplier is one that can meet the required assembly technology, production volume, quality standards, and delivery schedule. Verify current capabilities and request a detailed quotation before committing to a manufacturing partner.

Frequently Asked Questions

What does a PCB assembly company do?

A PCB assembly company installs and solders electronic components onto a bare printed circuit board. The process may include SMT placement, through-hole assembly, inspection, electrical testing, and final product integration.

Which companies provide PCB assembly services in Illinois?

Companies to evaluate include Precision PCB, T.J. Assemblies Inc., Tecnova Electronics, American Precision Electronics, Inc., Chicago Firmware Factory, ZDM Technologies, KW Fabrication, A2Z Electronics LLC, Star Werks Inc., and Aimtron Systems LLC. Confirm each company's current services before selecting a supplier.

Do PCB assembly companies support prototypes?

Many electronics manufacturers offer prototype assembly before full-scale production. Availability, minimum quantities, lead times, and engineering support vary by supplier.

What files are required for a PCB assembly quote?

Common requirements include Gerber files, a bill of materials, pick-and-place files, assembly drawings, component specifications, testing requirements, and the expected order quantity.

What is turnkey PCB assembly?

Turnkey PCB assembly typically includes component sourcing, circuit board assembly, inspection, and testing. Depending on the supplier, it may also include bare PCB procurement, cable integration, and complete box-build manufacturing.