| Business | Phone |
| Cantera H6 Llcl 4525 Weaver Pkwy, Warrenville 60555 | (630) 393-0323 |
| Entrust Technologies 4320 Winfield Rd # 200, Warrenville 60555 | (630) 836-8420 |
| Designs Ideal 28w001 Greenview Ave, Warrenville 60555 | (630) 393-2510 |
| Hepg-Uiuc 29w384 Emerald Green Dr, Warrenville 60555 | (630) 393-6713 |
| Key Resources Warrenville 60555 | (630) 836-1231 |
| Maple Hill Clubhouse 30w017 Penny Ln, Warrenville 60555 | (630) 231-6161 |
| Marathon Technologies 4320 Winfield Rd, Warrenville 60555 | (630) 836-8785 |
| Nitty Gritty Enterprises Inc 30w260 Butterfield Rd, Warrenville 60555 | (630) 836-9484 |
| Portera 4320 Winfield Rd, Warrenville 60555 | (630) 836-8585 |
| Tri Core Environment Llc 30w116 Willow Ln, Warrenville 60555 | (630) 562-3380 |
| Verus Inc 27475 Ferry Rd, Warrenville 60555 | (630) 717-2766 |
| Vtechnology Group 4320 Winfield Rd, Warrenville 60555 | (630) 836-8056 |