Through another maker. I just found out about this amazing museum on the South Side. It’s Made in Chicago collection is on display starting this month through April, 2018. The website by itself is a great compilation of all the things invented and/or made in Chicagoland and makes for great reading. Look up Scwhinn and Radio Flyer or even Rock-Ola juke boxes and Zenith Radios and, of course, Motorola.
If you believe it would be helpful to gain experience presenting to groups of customers and/or investors, the Purdue NW (Hammond) Commercialization and Manufacturing Excellence Center participates in the Kauffmann Foundation’s 1 Million Cups program.
If you would like to apply to present, then can easily do that here in 3-5 minutes: http://www.1millioncups.com/hammond
They meet on the 1st and 3rd Wednesdays of the month through the summer and will likely start up every week again in September.