I know Amazon has an office in Downtown Detroit
Dynatrace
Outside of the auto companies. There's Duo which was recently acquired by Cisco. Compuware Quicken loans Google - think it's just sales tho Besides that everything else is small to midsized that you have never heard of or startups.
The other Plex. http://plex.com/
Autos and associated tech. Just be aware of the risk associated with this direction. Very little outside of that, those limited biotech in Ann Arbor. The state has no meaningful VC presence.
Plenty of great VC: -- Detroit venture partners -- Ludlow ventures Longer list: http://www.growdetroit.com/detroit-startup-list/detroit-venture-capital-detroit-investment-funds/
How would you define great
General Dynamics Land Systems (GDLS)
Dynatrace Opendealer Exchange LCE Google Amz Msft Quicken loans / rocket ventures LinkedIn GM FORD There's more here than people know, they just don't think about it unless it's FANG.
StockX, amazon, argo, rivian, and a few others pay top dollar
The car companies are all throwing money into tech