From a review of Company SEC filings and the Google Finance website, I found 70 Michigan Companies that had their common stock trading with stock market caps of above $10 mil in early July 2020. Of these 70 Michigan Companies, 43 of them were headquartered in the Detroit Area.
The table below shows the Gold-Standard US GAAP Pretax Income (Loss) From Continuing Operations for the second and first quarters of both 2020 and 2019 for each of these 70 excellent Michigan Companies.