Yes, Cummings Research Park in Huntsville contains almost every major aerospace company. However, my experience has been that the vast majority of internship and entry level positions there are in software. Lockheed, Boeing, and others might be there, but the intern/entry job listings at that location tend to be for software engineering and programming.
My son is a senior in electrical. He interned after soph year with a smaller aero/defense contractor in NY, working on a device that identifies aircraft as friend or foe. After junior year, he interned with Textron, a major defense contractor, at their Maryland facility. He worked on antenna and communications for drones and unmanned systems. They also hired aero and mechanical interns for those and other projects. His roommate for the summer was an aero eng from Univ of Colorado. They were paid a salary plus housing stipend.
He has recently interviewed for the engineering leadership programs at Textron, Lockheed, and BAE Systems, waiting to hear if he is a finalist. He found everything on his own, no help from UA. With the internet these days, it’s pretty easy. Check listings on indeed, at engineerjobs dot com, and at each employer’s own website. BTW, two of his aero friends at UA have interned and accepted permanent jobs at Honeywell in AZ and Raytheon in CA. Companies do hire UA engineers. You just have to make yourself the best candidate you can be, and do the job hunt yourself.