At Caltronics Design and Assembly, we offer comprehensive services as one of the premier electronics engineering companies serving Wisconsin, Minneapolis, MN, California and Illinois.

Our services encompass everything related to electronic design and electronic assembly for your business. We have the capability to source even the most difficult to find parts so that our clients can have access to the parts they need to implement their vision. We are more than simply a contract manufacturing company. We also are proficient in every facet of electronics assembly and production. Our professional team has the knowledge, years of experience, and the engineering degrees to provide the highest caliber of service.

If you have a concept that uses electronic components and you want to see it in physical... (more)


If you have a general idea of what you want to make, these factories will help refine your idea and think through the different components that involve the making of your idea.


"Production run" means making a lot of one product at once. The factories listed under "production" can produce small and/or large quantities. The minimum order for a production run can vary from factory to factory (some have no minimum, some require a dozen, and some require up to 1,000 to be made at once)