sectors we partner with

EI Microcircuits serves a diverse range of industries, offering tailored electronic manufacturing services to meet the specific needs of each sector. Their comprehensive capabilities extend from quality-focused medical solutions and adaptable industrial controls to the robust requirements of mission-critical, agricultural, automotive, avionics, and military fields. With an emphasis on precision and regulatory compliance, EI Microcircuits is a trusted partner for clients seeking reliable, innovative electronics in complex environments.

Delivering Innovative & Versatile Manufacturing Solutions

medical

The medical industry comprises approximately 50% of EI Microcircuits’ business and is the longest tenured industry of our company’s history.

industrial

From oil refineries to large-scale machine controls, to power generation or hand-held computers, EI fulfills the need for this ever-changing technology sector.

energy

We manufacture durable, high-performance PCBs for energy systems requiring thermal stability and long-term reliability.

agriculture

We provide for a wide variety of agricultural sectors, ranging from livestock processing and monitoring, to the highest technology farm implements, to automotive accessories and controls.

EI Microcircuits builds high-layer count, high-performance assemblies for the emerging AI market. Our advanced SMT and quality systems ensure reliable, complex builds for HPC applications.

aviation

With the ability to fine tune and “lock-down” a process and the production line it runs on, EI Microcircuits can meet or exceed the rigid standards of aircraft systems.

military

With the ability to fine tune and “lock-down” a process and the production line it runs on, EI Microcircuits can meet or exceed the rigid standards of military products.

Security and Surveillance

We build compact, rugged PCB assemblies for real-time surveillance systems and mission-critical security tech.

our certifications

AMTIVO ISO 13485:2016 Certified Medical Devices logo in a square, with "AMTIVO" at the top and text at the bottom.
ISO 9001:2015 certified logo: AMTIVO with stylized "A" symbol, white background, and "Quality Management" text.
Square logo with "AMTIVO" brand, AS9100 D Certified for Aerospace.
IPC Member logo with stylized arc above the letters "IPC" in dark gray.
ANSI logo with the organization name in bold.
UL mark inside a black circle, indicating safety certification.

hear it from our customers

"A delightful company to work with. Could not have done it without your expertise."

"EI excels in responsiveness, support and flexibility. I very much appreciate EI’s ability to adapt on the fly."

"I appreciate the work EI does most of all because it makes my job easier."

"Overall, EI does a great job in dealing with everything we throw at them. They are responsive and understanding of us, even though it may not always be the most reasonable of requests. As a buyer, I feel lucky to have a supplier that works with us like they do."

"Working on a project that had a board that was simply not manufacturable the way it was set up, EI went above and beyond to help with engineering and still met a very short deadline."

Two women working on circuit boards at a workbench. One is soldering. Black and white photo.

Electronic Insights

A person is holding a motherboard in their hands in a black and white photo.

Field Programmable Gate Arrays (FPGA) Explained

July 7, 2025
Learn how Field Programmable Gate Arrays (FPGAs) work, their types, benefits, and industry applications—from prototyping to high-performance computing.
A bunch of green circuit boards are stacked on top of each other on a table.

Understanding Surface Mount Technology (SMT)

By EI Microcircuits • July 9, 2025
Explore Surface Mount Technology (SMT) in electronics manufacturing—how it enables compact, high-performance assemblies for medical, aerospace, and industrial applications.
A woman is looking at a circuit board with a magnifying glass.

What are Box Build Assemblies in Electronics Manufacturing?

By EI Microcircuits • July 9, 2025
Discover what box build assemblies are in electronics manufacturing. Learn how final product integration—PCBA, enclosures, wiring, testing—boosts quality, speed, and reliability.
A circuit board with the words class 1 2 and 3 on it

Understanding IPC Class 1, 2, & 3 Certifications

By EI Microcircuits • July 9, 2025
Learn the differences between IPC Class 1, 2, and 3 certifications for PCB assemblies. Discover how each class impacts manufacturing quality, reliability, and industry use.

let's talk

EI Microcircuits operates multiple climate-controlled facilities designed for scalability, technical excellence, and built-in disaster resilience—each fully equipped to support today’s most advanced electronic assemblies. Let us be the solution to your next project—Contact Us, Request a Quote, or Schedule a Tour today!

Contact Us Today

MANKATO, MN

1651 Pohl Road
Mankato, MN 56001
P: 507.345.5786

ST. PETER, MN

2011 Klein Street
St. Peter, MN 56082
P: 507.934.5722

MANKATO, MN

69 Power Drive
Mankato, MN 56001

P: 507.386.9160

*Each facility is configured to support your production needs. While maintaining continuity with each other in equipment, training and process control. All facilities share the same data center to allow for seamless manufacturing between locations.