| ADCOM CORP. | 1305 E CAMPBELL ST | (847)-506-9564 |
| ADVANCED NETWORK ARCHITECTURE INC. | 3847 N GALESBURG CT | (847)-590-8755 |
| ADVANTECH SOLUTIONS | 2340 S ARLINGTON HEIGHTS RD | (847)-690-0255 |
| ADVANTEX SOLUTIONS | 1929 S ARLINGTON HEIGHTS RD | (847)-734-9411 |
| ARTHUR ELLINGSEN CO. | 610 S ARLINGTON HEIGHTS RD | (847)-506-0555 |
| BP CONSULTING LLC | 710 W BURR OAK DR | (847)-392-7010 |
| COMPUSCRIPTION | 1123 N DUNTON AVE | (847)-392-6593 |
| DBD CONSULTING INC. | 2618 N WATERMAN AVE | (847)-818-9161 |
| DEMPSEY & BROWN | 1615 E CENTRAL RD | (847)-439-3590 |
| DISPLAY CONCEPTS | 2639 N STRATFORD RD | (847)-222-9510 |
| ENCORE CONSULTING SERVICES | 1450 S NEW WILKE RD | (847)-222-0244 |
| EPCON SYSTEMS | 1327 S KASPAR AVE | (847)-394-4397 |
| GRAYSPACE INC. | 3233 N ARLINGTON HEIGHTS RD | (847)-253-3187 |
| GRAYSPACE INC. | 4256 N ARLINGTON HEIGHTS RD | (847)-253-3187 |
| GSS AMERICA INC. | 825 E RAND RD STE 210 | (847)-788-1900 |
| HALL IHLE & ASSOCS LTD | 3250 N ARLINGTON HEIGHTS RD | (847)-394-5900 |
| HAMPTON MANAGEMENT SERVICES INC. | 302 W MAPLE ST | (847)-259-5632 |
| INFOFOCUS INC. | 800 W RAND RD | (847)-342-0571 |
| KEYSTONE CONSULTING AFFILIATES INC. | 505 E GOLF RD | (847)-690-0955 |
| MCNALLY SYSTEMS | 2045 S ARLINGTON HEIGHTS RD | (847)-437-7701 |
| MINDEA INC. | 1602 N EVERGREEN AVE | (847)-670-7500 |
| NDT ONE INC. | 1415 E CENTRAL RD | (847)-357-8607 |
| NEPART INC. | 2350 S SHAG BARK TRL | (847)-228-0800 |
| NORTHSTAR DEVELOPMENT GROUP | 2015 S ARLINGTON HEIGHTS RD | (847)-357-0457 |
| OPTILINK CORP. | 5 W ORCHARD ST | (847)-632-0472 |
| PROCESSDATA | 2035 S ARLINGTON HEIGHTS RD | (847)-437-7700 |
| SOPHISTICOM TECHNOLOGIES INC. | 2355 S ARLINGTON HEIGHTS RD | (847)-718-9007 |
| TANDET & ASSOCS | 3411 N KENNICOTT AVE STE C | (847)-463-8870 |
| TERASOFT INTERNATIONAL INC. | 2015 S ARLINGTON HEIGHTS RD | (847)-427-1717 |
| TRICOM CONSULTING INC. | 1022 W RAND RD | (847)-221-5852 |
