| ACE COMPUTER | 1425 E ALGONQUIN RD ARLINGTON HEIGHTS, IL | (847) 952-6900 |
| ADVANTECH SOLUTIONS | 2340 S ARLINGTON HEIGHTS RD ARLINGTON HEIGHTS, IL | (847) 690-0255 |
| ADVANTEX SOLUTIONS | 1929 N ARLINGTON HEIGHTS RD ARLINGTON HEIGHTS, IL | (847) 454-0501 |
| ANDERS & ASSOCIATES INC | ARLINGTON HEIGHTS, IL | (847) 670-9300 |
| ARLINGTON INFORMATION SYSTEMS | 515 E GOLF RD ARLINGTON HEIGHTS, IL | (847) 545-1100 |
| BERSAL INC | 3233 N ARLINGTON HEIGHTS RD ARLINGTON HEIGHTS, IL | (847) 368-1512 |
| COMPAKT INC | 3233 N ARLINGTON HEIGHTS RD ARLINGTON HEIGHTS, IL | (847) 577-0050 |
| COMPUSCRIPTION | 1123 N DUNTON AVE ARLINGTON HEIGHTS, IL | (847) 392-6593 |
| DBD CONSULTING INC | 2618 N WATERMAN AVE ARLINGTON HEIGHTS, IL | (847) 818-9161 |
| DISPLAY CONCEPTS | 2639 N STRATFORD RD ARLINGTON HEIGHTS, IL | (847) 222-9510 |
| EIGEN INC | 1535 N DOUGLAS AVE ARLINGTON HEIGHTS, IL | (847) 670-9410 |
| EPCON SYSTEMS | 1327 S KASPAR AVE ARLINGTON HEIGHTS, IL | (847) 394-4397 |
| GUI TECHNOLOGIES INC | 3411 N ARLINGTON HEIGHTS RD ARLINGTON HEIGHTS, IL | (847) 342-9200 |
| HAMPTON MANAGEMENT SERVICES INC | 302 W MAPLE ST ARLINGTON HEIGHTS, IL | (847) 259-5632 |
| INFOFOCUS INC | 800 W RAND RD ARLINGTON HEIGHTS, IL | (847) 342-0571 |
| INNOVATIVE TECHNOLOGY CONCEPT INC | 825 E GOLF RD ARLINGTON HEIGHTS, IL | (847) 439-3939 |
| MIDWEST C A D INC | ARLINGTON HEIGHTS, IL | (847) 392-8770 |
| MINDEA INC | 1602 N EVERGREEN AVE ARLINGTON HEIGHTS, IL | (847) 670-7500 |
| N D T ONE INC | 1415 E CENTRAL RD ARLINGTON HEIGHTS, IL | (847) 357-8607 |
| NEPART INC | 2350 S SHAG BARK TRL ARLINGTON HEIGHTS, IL | (847) 228-0800 |
| OPTILINK CORP | 5 W ORCHARD ST ARLINGTON HEIGHTS, IL | (847) 632-0472 |
| PONVIA TECHNOLOGY INC | 505 E GOLF RD ARLINGTON HEIGHTS, IL | (847) 956-3800 |
| PROCESSDATA | 2035 S ARLINGTON HEIGHTS RD ARLINGTON HEIGHTS, IL | (847) 437-7700 |
| SOPHISTICOM TECHNOLOGIES | 2355 S ARLINGTON HEIGHTS RD ARLINGTON HEIGHTS, IL | (847) 718-9007 |
| STA CONSULTING INC | 610 E INDEPENDENCE CT ARLINGTON HEIGHTS, IL | (847) 228-6940 |
| SYSTEMS INDIGO COMPUTER | 1715 W PORTSMITH LN ARLINGTON HEIGHTS, IL | (847) 870-8060 |
| TANDET & ASSOCIATES | 3411 N KENNICOTT AVE ARLINGTON HEIGHTS, IL | (847) 463-8870 |
| TERA SOFT INTERNATIONAL | 2015 S ARLINGTON HEIGHTS RD ARLINGTON HEIGHTS, IL | (847) 427-1717 |
| UNITED BIZJET HOLDINGS | 85 W ALGONQUIN RD ARLINGTON HEIGHTS, IL | (847) 545-3100 |
| VECTOR ESP | 3550 W SALT CREEK LN ARLINGTON HEIGHTS, IL | (847) 797-9898 |