Your Trusted Partner for High-Quality PCB Manufacturing & Assembly
Established in 2000 and based in Shenzhen, China, Topline Circuit is a one-stop PCB manufacturer providing PCB fabrication, PCB assembly, and turnkey solutions to customers worldwide.
We specialize in rigid PCBs, HDI PCBs, aluminum PCBs, flexible PCBs, and rigid-flex PCBs, serving industries including industrial control, medical, aerospace, telecom, automotive, and consumer electronics.
With advanced equipment, experienced engineers, and a customer-first mindset, we are committed to delivering reliable quality, fast turnaround, and exceptional service on every project.

With advanced equipment, experienced engineers, and a customer-first mindset, we are committed to delivering reliable quality, fast turnaround, and exceptional service on every project.
Development history
“Through our continuous efforts and innovation, significant progress has been made in the field of PCB manufacturing. Every number reflects the dedication and achievements of our team.”
We have produced 100,000 PCBs, providing high-quality products to customers worldwide.We have produced 100,000 PCBs, providing high-quality products to customers worldwide.We have produced 100,000 PCBs, providing high-quality products to customers worldwide.
Since our establishment, our products have passed over 100 international certifications, ensuring that every PCB meets global standards.Since our establishment, our products have passed over 100 international certifications, ensuring that every PCB meets global standards.
Our PCB products are widely used in over 100 different industries, and we are committed to providing high-performance solutions.Our PCB products are widely used in over 100 different industries, and we are committed to providing high-performance solutions.
Why Choose Topline Circuit?
One-Stop PCB Solution
From PCB fabrication to SMT assembly and final testing, we handle it all under one roof.
Quality You Can Trust
Strict quality control, advanced inspection, and full compliance with international standards.
Fast Lead Time
Smart production planning and efficient processes ensure quick turnaround and on-time delivery.
Engineering Support
Experienced engineers provide DFM review and technical support from prototype to mass production.
Built for Performance. Delivered with Care.
- Advanced manufacturing equipment and automated production lines
- Rigid, HDI, flexible, rigid-flex and aluminum PCB capabilities
- SMT, BGA, VIA in PAD, impedance control and more
- Global logistics with secure packaging and on-time delivery
- Dedicated account management and after-sales support

Certified Quality. Global Compliance.






Certified Quality. Global Compliance.





What Our Customers Say
Topline Circuit consistently delivers high-quality PCBs and assemblies on time. Their communication and engineering support are outstanding.
We have been working with Topline Circuit for over five years. Their quick turnaround and stable quality are key to our production success.
Professional team, competitive pricing, and reliable delivery. Topline Circuit is our go-to PCB partner for prototypes and mass production.
Let's Build Your Next Project Together
Contact us today for a fast quote and experience our reliable, high-quality PCB solutions.