About Us

About NINJA Circuits

Ninja Circuits is a clever, fast, and skilled pcb assembly manufacturer dedicated to developing the best and quickest pcb assembly prototypes in the USA. We offer exceptionally fast pcb assembly prototypes to engineers and innovators developing new products to improve and enhance our lives and the world we live in.

We do rapid pcb prototypes. Clever, efficient and skilled!

We provide the quickest, most efficient, and best customer service in the pcb assembly prototypes market. Our services have been refined for engineers and innovators upgrading, redesigning, or developing new products. If you can envision it we can build it!

Why Do we do it?

  • So that customers can move projects forward quickly and accurately and seek the next great idea.
  • So that we can help find solutions for engineers and innovators seeking technology driven solutions.
  • So that we can provide production volume services and continue to move technology forward to meet the needs of the medical, industrial, technology industries.
  • Because we care deeply about creating an innovation-focused prototype company backed by a stable organization with advanced technology and employees committed to excellence.

About PCB prototyping service

Ninja Circuits is clever, fast, and skilled. This means we commit the best technology and human capital to the development of prototypes. Engineers and innovators fuel our passion for providing excellent pcb prototyping service in the USA.

Ninja Circuits team is experienced, intuitive, and highly trained in their specialized role in producing your quick turn pcb prototypes in the USA. We invest in advanced technology and systems to ensure that your innovations are built by the best technology in the market. Ninja Circuits works with engineers and innovators to produce world-changing pcb prototype assemblies.


Ninja provides short run, small volume, and one off pcb assembly rapid prototypes. Ninja is capable of producing pcb assembly prototypes using lead-free solder paste and are RoHS compliant. We can build your prototype on rigid, flex, or rigid-flex boards.

Ninja Circuits’ unique relationship with partner company, EI Microcircuits, expands potential for your prototype capabilities and when you are ready to engage production volumes, the team will work closely to transfer your important project to a qualified production house.


Ninja Circuits is proud to be based in the USA. Being located in the USA allows Ninja Circuits to provide excellent communication, on time delivery, quick turn pcb assembly, and responsive customer service.

company history

NINJA Circuits was founded in 2015 in Mankato, MN, as a division of EI Microcircuits, a leading provider of high-reliability electronic manufacturing services. Recognizing the need for a dedicated quick-turn PCB manufacturing partner, EI Microcircuits launched NINJA Circuits to bridge the gap between design and production, offering unmatched speed, precision, and quality in PCB fabrication.


Backed by the expertise and resources of EI Microcircuits, NINJA Circuits was built with a strong foundation in quality, reliability, and innovation. Leveraging cutting-edge automation, advanced materials, and rigorous quality control processes, the company ensures that every circuit board meets the highest industry standards. This unwavering commitment to excellence allows NINJA Circuits to serve industries with the most demanding requirements, including aerospace, medical devices, consumer electronics, and industrial applications.



Today, NINJA Circuits continues to push the boundaries of quick-turn PCB manufacturing, helping engineers and companies accelerate their product development while maintaining the superior quality and service that EI Microcircuits has been known for since its inception.

THE NINJA WAY

Ninja Circuits is a flexible, fast, and skilled pcb assembly manufacturer dedicated to developing the best and quickest pcb assembly prototypes in the USA. We offer exceptionally fast pcb assembly prototypes to engineers and innovators developing new products to improve and enhance our lives and the world we live in. Ninja Circuits is proud to be based in the USA, which allows Ninja Circuits to provide excellent communication, on-time delivery, quick turn PCB assembly, and responsive customer service.

Flexible

Flexibility is our strength. No two customers are alike. Ninja will tailor our services to your needs to provide you with the desired outcome for your project.

Fast

Ninja Circuits knows that the culmination of your project design is a working prototype. Waiting weeks or months for validation is not only frustrating but impedes schedules and time to market and is unacceptable. Ninja can provide you a quality product in as short amount of time possible.

SKILLED

Our personnel are trained with skills on par with anyone in the EMS industry. A poorly assembled product is a failure. Ninja delivers fast AND quality products every day and will ensure your project needs are met.

OUR certifications

Ninja Circuits is committed to providing quality to customers. Certifications, training, and experience are what we take pride in at every step of the way for every project.

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WHAT OUR CUSTOMERS SAY

We appreciated the quick and creative response you provided in building this product. I was concerned about the robustness of this assembly, but you found a solution that secured the components in the box sufficiently.

INDUSTRY INSIGHTS

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Ninja Circuits to Exhibit at Design-2-Part Show in Irving, TX - Booth #210

By Tim Paulus • April 4, 2025
Ninja Circuits is proud to announce we’ll be exhibiting at the Design-2-Part Show at the Irving Convention Center on April 9–10, 2025 ! Come visit us at Booth #210 to learn more about our high-quality PCB manufacturing services and how we support engineers and OEMs across a wide range of industries.
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MD&M, Medical Design & Manufacturing - West

January 28, 2025
Discover the latest innovations in medical design and manufacturing at MD&M West. Connect with industry experts, explore cutting-edge technology, and find solutions for your medical manufacturing needs.

Contact Ninja for a quote today!

Call Ninja Circuits and discuss your project needs with an in-house account representative today.

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Contact Ninja for a quote today!