Detroit - 11 companies
Grand Rapids - 14 companies
Warren - 4 companies
Sterling Heights - 5 companies
Lansing - 17 companies
Ann Arbor - 9 companies
Flint - 5 companies
Charter Township of Clinton - 6 companies
Dearborn - 8 companies
Livonia - 10 companies
Cedar Springs - 1 company
Schoolcraft - 1 company
Canton - 1 company
Grand Ledge - 2 companies
Southgate - 2 companies
Chesterfield - 1 company
Trenton - 1 company
Utica - 2 companies
Walled Lake - 1 company
Garden City - 2 companies
Birmingham - 1 company
Hudsonville - 1 company
Holt - 2 companies
Allendale - 1 company
Zeeland - 1 company
Jenison - 1 company
Wyoming - 1 company
Troy - 1 company
Hazel Park - 1 company
Dewitt - 1 company
Mason - 1 company
Okemos - 1 company
Charlotte - 1 company
Grand Blanc - 2 companies
Pinckney - 1 company
Maybee - 1 company
Jackson - 1 company
Burton - 1 company
Davison - 1 company
Clinton Township - 1 company
Shelby Twp - 1 company
Dearborn Heights - 1 company
Whitmore Lake - 1 company
Taylor - 1 company