Laser is cool. But you don't need an expensive form of technology to find what you are after.
With something as simple as cutting a thin plate there are many local options.
Waterjet, CNC, plasma, or other capable small companies might do it.
Especially on their off-season.
I tried to add a Duckduckgo link but the html wouldn't include search parameters. Only the main page would copy.
Here is another link from Microsoft Bing:
custom sheet metal cutting ohio - Bing