| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| APEX ENGINEERING PRODUCTS | 1241 SHORELINE DR | AURORA | IL | 60504 | (630) 820-8888 | (630) 820-8886 |
| BLACKRIDGE RESEARCH & CONSULTING | 4041 W HOLLOW CREEK DR | PEORIA | IL | 61615 | (917) 993-7467 | (917) 993-7467 |
| CARTER PUMP | 326 S DEAN ST | ENGLEWOOD | NJ | 07631 | (201) 568-9798 | (201) 444-4629 |
| DRIVE SOURCE | 7900 DURAND AVE. BLDG 31 | STURTEVANT | WI | 53177 | (262) 331-9039 | (262) 554-7977 |
| FLOW-TECHNICS INC | 181 ONTARIO ST | FRANKFORT | IL | 60423 | (815) 277-2600 | (815) 534-5311 |
| GASVODA & ASSOCIATES INC | 1530 HUNTINGTON DR | CALUMET CITY | IL | 60409 | (708) 891-4400 | (312) 894-1138 |
| IHC CONSTRUCTION CO LLC | 385 AIRPORT RD, STE 100 | ELGIN | IL | 60123 | (847) 742-1516 | (847) 742-6610 |
| INDEPENDENT MECHANICAL | 2671 UNITED LN | ELK GROVE VILLAGE | IL | 60007 | (773) 243-0575 | (773) 496-8136 |
| INDI ENTERPRISE INC | 535 CHIPPEWA TR | CAROL STREAM | IL | 60188-1589 | (630) 462-6980 | (630) 868-3861 |
| JOHN BURNS CONSTRUCTION COMPANY LLC | 999 OAKMONT PLAZA DR, SUITE 400 | WESTMONT | IL | 60559 | (708) 326-3500 | (000) 000-0000 |
| JOSEPH J. HENDERSON & SON | 4288 OLD GRAND AVE | GURNEE | IL | 60031 | (847) 244-3222 | (847) 244-9572 |
| JUDLAU CONTRACTING INC | 1011 WARRENVILLE RD, STE 475 | LISLE | IL | 60532 | (718) 554-2320 | (331) 777-5771 |
| KSB INC | 4415 SARELLEN RD | HENRICO | VA | 23231 | (804) 222-1818 | (804) 226-6961 |
| L & S ELECTRIC INC | 5101 MESKER ST | SCHOFIELD | WI | 54476 | (715) 241-3202 | (715) 355-5931 |
| ORNELAS CONSTRUCTION COMPANY | 12520 W HORSESHOE DR | NEW LENOX | IL | 60451 | (815) 462-7600 | (815) 462-7601 |
| SRN TESTING SERVICES | 2258 SOUTHWIND BLVD | BARTLETT | IL | 60103 | (630) 503-5002 | (630) 503-5002 |
| XYLEM WATER SOLUTIONS USA, INC | 9661 194TH ST | MOKENA | IL | 60448 | (708) 889-1560 | (708) 342-0491 |