Verified Nov 2026
Electronics & Software
·
Mankato, Minnesota
·
Since 1984
EI Microcircuits is an electronics manufacturing services provider headquartered in Mankato, Minnesota, founded in 1984. It employs roughly 100 to 200 people, with an estimated annual revenue of $10 to $50 million, and is privately held. The company designs, assembles, and integrates custom and standard electronic assemblies, serving automotive, electric-vehicle, medical, military-defense, appliance, and electronics customers. Its offerings include PCB assembly, box-build integration, and conformal coating.
EI Microcircuits at a glance
Revenue
$10-50M
Est. band
Employees
100-200
Founded
1984
Headquarters
Mankato, Minnesota
Certifications
AS9100 · ISO 13485 · ISO 9001
Import activity
91
Industries
Automotive
Electric Vehicles
Electronics
Appliance
Medical
Military & Defense
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
91
Named foreign suppliers
11
Top origins
China · Hong Kong S.A.R. · Taiwan · Singapore
Shared foreign counterparties do not establish that these companies buy from EI Microcircuits.
What this tells a buyer
The record contains no customs or trade shipment data for the company, and its most recent public activity consists of job postings in Mankato and St. Peter, Minnesota, dated from March to October 2026.
The company holds AS9100, ISO 13485, and ISO 9001 certifications and lists PCB assembly, thermal management, and conformal coating among its products and services.
The company is privately held, with an estimated revenue band of $10 to $50 million and a workforce of 100 to 200 employees.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
42 years in operation (founded 1984).
Holds AS9100, ISO 13485, ISO 9001 certification(s) per public sources.
Overview
EI Microcircuits is an electronics manufacturing services provider headquartered in Mankato, Minnesota, founded in 1984. It employs roughly 100 to 200 people, with an estimated annual revenue of $10 to $50 million, and is privately held. The company designs, assembles, and integrates custom and standard electronic assemblies, serving automotive, electric-vehicle, medical, military-defense, appliance, and electronics customers. Its offerings include PCB assembly, box-build integration, and conformal coating.
At a glance
Attribute | Detail |
|---|---|
Founded | 1984 |
Headquarters | Mankato, Minnesota |
Employees | 100-200 |
Revenue | $10-50M (estimated) |
Primary capability | Electronics & Software |
Certifications | AS9100 · ISO 13485 · ISO 9001 |
What EI Microcircuits makes
The company holds AS9100, ISO 13485, and ISO 9001 certifications and lists PCB assembly, thermal management, and conformal coating among its products and services.
Products and capabilities described on the company's own site include Assembly, Thermal Management, Electronics, PCB, Coating (source: eimicro.com).
Certifications
EI Microcircuits is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
AS9100 — linkedin.com
ISO 13485 — linkedin.com
ISO 9001 — linkedin.com
Trade and customs footprint
The record contains no customs or trade shipment data for the company, and its most recent public activity consists of job postings in Mankato and St. Peter, Minnesota, dated from March to October 2026. US customs bill-of-lading records list 91 inbound shipments across 11 foreign suppliers, with top origins including China · Hong Kong S.A.R. · Taiwan · Singapore.
Latest developments
2026-10-17 — We're a new Training & Development Administrator in Mankato, Minnesota. Apply today or share this post with your network. | EI Microcircuits (linkedin.com)
2026-08-26 — We're a new Staff Accountant in Mankato, Minnesota. Apply today or share this post with your network. | EI Microcircuits (linkedin.com)
2026-08-19 — We're a new Inspector- Quality, Receiving, & Coating in St Peter, Minnesota. Apply today or share this post with your network. | EI Microcircuits (linkedin.com)
2026-07-20 — We're growing! 🎉 E.I. Microcircuits is looking for our next great team member. If you're looking for an opportunity to make an impact, work with a talented team, and build your career, … | EI Microcircuits (linkedin.com)
2026-03-27 — We are looking for a skilled Account Manager to join our Customer Service team! | EI Microcircuits (linkedin.com)
2026-02-09 — How Are PCBs Made? Solutions Explained | EI Microcircuits (eimicro.com)
Company details
The company is privately held, with an estimated revenue band of $10 to $50 million and a workforce of 100 to 200 employees. EI Microcircuits was founded in 1984, has an estimated 100-200 employees, and is headquartered in Mankato, Minnesota. On the LightSource stability read it is rated "Established & active": 42 years in operation (founded 1984). Holds AS9100, ISO 13485, ISO 9001 certification(s) per public sources.
Frequently asked questions
What does EI Microcircuits make?
EI Microcircuits is an electronics manufacturing services provider headquartered in Mankato, Minnesota, founded in 1984. It employs roughly 100 to 200 people, with an estimated annual revenue of $10 to $50 million, and is privately held. The company designs, assembles, and integrates custom and standard electronic assemblies, serving automotive, electric-vehicle, medical, military-defense, appliance, and electronics customers. Its offerings include PCB assembly, box-build integration, and conformal coating.
Where is EI Microcircuits headquartered?
EI Microcircuits is headquartered in Mankato, Minnesota (1651 Pohl Road, Mankato, Minnesota, 56001).
When was EI Microcircuits founded?
EI Microcircuits was founded in 1984.
How big is EI Microcircuits?
EI Microcircuits has an estimated 100-200 employees, with revenue in the $10-50M range (estimated).
What certifications does EI Microcircuits hold?
EI Microcircuits lists AS9100 · ISO 13485 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Does EI Microcircuits import from overseas suppliers?
US customs bill-of-lading records show 91 inbound shipments for EI Microcircuits, with top origins including China · Hong Kong S.A.R. · Taiwan · Singapore.
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Last verified Nov 2026. Is this your company? Request a correction.
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