Texas Subcategories This category has the following 15 subcategories, out of 15 total. B Companies based in Bloomington–Normal (9 P)C Companies based in Chicago (20 C, 439 P)D Companies based in Deerfield, Illinois (2 C, 14 P)E Companies based in Elgin, Illinois (4 P) Companies based in Evanston, Illinois (1 C, 14 P)G Companies based in Glenview, Illinois (9 P)L Companies based in Lake Forest, Illinois (15 P)M Companies based in Mount Prospect, Illinois (3 P)N Companies based in Naperville, Illinois (11 P) Companies based in Northbrook, Illinois (12 P)P Companies based in Peoria, Illinois (1 C, 11 P)Q Companies based in the Quad Cities (2 C, 17 P)R Companies based in Rockford, Illinois (19 P)S Companies based in Skokie, Illinois (8 P)V Companies based in Vernon Hills, Illinois (4 P)