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EI Microcircuits logo

EI Microcircuits

Mankato, MN
CEM, circuit board assembly, complete contract assembly including procurement of materials, design layout, DFM, testing and full box build of products. read more

Smiths Connectors

Hypertronics - High reliabilty interconnects featuring the Hyperboloid Contact Technology.

Sabritec - Ruggedized military grade connectors 
IDI - High quality spring probe contacts and connector solutions    read more

Bobbintron Electrical Corporation 

Taipei, Taiwan
Our engineering and purchasing office in Taipei that assists in design and manufacturing in Taiwan and China. We develop source control drawings for all of our parts and work to create FOE relationships with all of our partners.   read more


Taipei Hsien, Taiwan
Bravotron is a NCT (Numerical Control Tapping) house. No tooling for small to medium volume metal parts. Virtual Enclosures which allows us to install all hardware except for PCB. Pro-E 3D design capabilities.

Plas-Tech Engineering

Lake Geneva, WI

Specialize in sophisticated molding processes, intricate tooling and highly engineered products for the medical and pharmaceutical markets. Engineering Support: Early design involvement with a focus on achieving cost targets for tooling and piece parts by optimizing design for manufacturability, design for assembly and material processing challenges.   read more

Edgewood Manufacturing Inc.

Harris, MN

Machining of common materials: CRS, Aluminum, SST, Brass, Casting, along with most plastics. Light assembly is also available. Capability to machine and assemble your parts or you can provide the parts to be assembled.

Foxconn International
Santa Clara, CA

PC connectors, backplanes, cables, audio connectors, switches    

Suntsu Frequency Control, Inc.

Irvine, CA
Suntsu Frequency Control, Inc. is an ISO 9001:2008 certified supplier of quartz crystals, crystal oscillators, oven
controlled crystal oscillators (OCXO's), temperature compensated crystal oscillators (TCXO's), voltage controlled
crystal oscillators (VCXO's), and precision time modules.

Noble U.S.A. Inc.

Rolling Meadows, IL
Potentiometers including snap-in, slide, long life single section, trimmer and miniature. Power lock switches, inline switches, push, and rotary encoder. Input devices. Analog and digital. Standard or fully custom products

E-Switch logo

E-Switch, Inc.
Minneapolis, MN
E-Switch is a leading electromechanical switch supplier that has been delivering innovative and quality switches to the global market since 1979 . Products include tact, snap-action, slide, sealed, anti-vandal pushbutton, SMT pushbutton, toggle, rotary, keylock, rocker, power, illuminated switches and more.



Ninja Circuits
Mankato, MN
If you need it fast, call Ninja.  We offer a complete range of prototype services to meet your needs. Specializing in quick turn, proof-of-concept and one-time builds, Ninja Circuits has the resources including Assembleon iFlex, vapor phase re-flow oven technology, conformal coating and IPC trained operators to get the job done right.


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Holmgren Associates Inc. of Minneapolis - An EI Sales Company

Tel: (763) 574-9983 Fax: (763) 574-9255
Minneapolis, MN
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