Des Moines - 12 companies
Cedar Rapids - 7 companies
Davenport - 6 companies
Sioux City - 3 companies
Waterloo - 3 companies
Iowa City - 8 companies
Council Bluffs - 8 companies
Ames - 4 companies
Dubuque - 4 companies
West Des Moines - 3 companies
Waukee - 1 company
Story City - 1 company
Urbandale - 1 company
Indianola - 1 company
Altoona - 1 company
Huxley - 1 company
Bettendorf - 1 company
Clinton - 1 company
Cleghorn - 1 company
Cedar Falls - 1 company
Coralville - 1 company
North Liberty - 1 company
Jewell - 1 company