| Business | Phone |
| T C Business Solutions Inc 45 W Belvidere Rd, Grayslake 60030 | (847) 548-5480 |
| Blizzardtech Inc 1425 Indian Grass Ln, Grayslake 60030 | (847) 548-3750 |
| Solution Specialties Inc 45 N Lake Ave, Grayslake 60030 | (847) 223-4020 |
| Computer Help Anytime 288 Harding St, Grayslake 60030 | (847) 223-9622 |
| Des Systems Inc 655 Pierce Ct, Grayslake 60030 | (847) 223-7655 |
| Pagoda Enterprises Inc 888 E Belvidere Rd 219, Grayslake 60030 | (847) 548-1550 |
| Interactive Business Solutions 888 E Belvidere Rd # 302, Grayslake 60030 | (847) 231-4330 |