| Business | Phone |
| Alpha Gear Drives 7315 W Wilson Ave, Harwood Heights 60706 | (708) 867-5030 |
| Bmc Developement Group 7333 W Ainslie St, Harwood Heights 60706 | (708) 867-8336 |
| Fuji Ya 4626 N Harlem Ave, Harwood Heights 60706 | (708) 867-3000 |
| Dmarco Enterprises 7151 W Gunnison St, Harwood Heights 60706 | (708) 867-3048 |
| Diamond Development North Corp 4716 N Newland Ave, Harwood Heights 60706 | (708) 867-7588 |
| Daskalos Peter & Fontene 7371 W Leland Ave, Harwood Heights 60706 | (708) 867-3027 |
| Irving & G Kravitz 7171 W Gunnison St, Harwood Heights 60706 | (708) 867-7641 |
| La Dat 6638 W Gunnison St, Harwood Heights 60706 | (708) 867-3119 |
| Rowicki Malgorzata & Marek 7632 W Lawrence Ave 3b, Harwood Heights 60706 | (708) 867-3167 |
| Unity Ventures 4747 N Harlem Ave, Harwood Heights 60706 | (708) 867-0178 |