| Business | Phone |
| K Force Inc 722 Old Checker Rd, Buffalo Grove 60089 | (847) 927-1650 |
| Kay & Assoc Inc 165 N Arlington Heights Rd150, Buffalo Grove 60089 | (847) 255-8444 |
| Kelly Services 1001 Johnson Dr 220, Buffalo Grove 60089 | (847) 459-9478 |
| Ntrinsic Technical Assoc 16 E Fabish Dr, Buffalo Grove 60089 | (847) 279-8040 |