| Business | Phone |
| International Technology & Mfg 2012 Central Ave, Wilmette 60091 | (847) 853-9938 |
| Network Inc 2437 Kenilworth Ave, Wilmette 60091 | (847) 256-2179 |
| Stuart Thomas Consulting Group 1335 Chestnut Ave, Wilmette 60091 | (847) 251-7160 |
| Insight Energy Wilmette 60091 | (847) 256-3081 |
| Park Avenue Consultants 1200 Central Ave 350, Wilmette 60091 | (847) 920-9900 |