| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| AIRYS INC | 21825 CHERRY HILL ROAD | JOLIET | IL | 60433 | (708) 429-0660 | (708) 729-0795 |
| ALLIED INSTRUMENTATION | 9839 INDUSTRIAL COURT, SUITE B | HIGHLAND | IN | 46322 | (219) 924-4545 | (219) 924-5011 |
| ALLIED VALVE INC, d/b/a ALLIED | 8938 N PRAIRIE POINT | PEORIA | IL | 61615 | (309) 692-1029 | (309) 692-1045 |
| AMERIMEX MOTOR & CONTROLS LLC | 840 GESSNER RD., STE 950 | HOUSTON | TX | 77024 | (281) 819-1784 | (225) 654-1115 |
| ANDERSON & CO INC, A A, D/B/A | 960 OAK CREEK DR | LOMBARD | IL | 60148 | (630) 782-6834 | (630) 782-6835 |
| APEX ENGINEERING PRODUCTS | 1241 SHORELINE DR | AURORA | IL | 60504 | (630) 820-8888 | (630) 820-8886 |
| BIDNET | 20A RAILROAD AVE | ALBANY | NY | 12205 | (800) 677-1997 | (518) 438-0599 |
| BLACKRIDGE RESEARCH & CONSULTING | 4041 W HOLLOW CREEK DR | PEORIA | IL | 61615 | (917) 993-7467 | (917) 993-7467 |
| BOERGER LLC | 2860 WATER TOWER PL | CHANHASSEN | MN | 55317 | (612) 590-0281 | (612) 435-7329 |
| BROADWAY ELECTRIC INC | 500 W ALGONQUIN RD | MT. PROSPECT | IL | 60056 | (847) 593-0001 | (847) 593-0010 |
| CARTER PUMP | 326 S DEAN ST | ENGLEWOOD | NJ | 07631 | (201) 568-9798 | (201) 444-4629 |
| CONSTRUCT CONNECT | 30 TECHNOLOGY PKWY S, STE 100 | NORCROSS | GA | 30092 | (800) 364-2059 | (866) 570-8187 |
| CRAFT MECHANICAL LLC | 4639 W ARMITAGE AVE | CHICAGO | IL | 60639 | (630) 863-3371 | (999) 999-9999 |
| DAHME MECHANICAL INDUSTRIES INC | 610 S ARTHUR AVE | ARLINGTON HTS | IL | 60005 | (847) 253-0341 | (847) 253-9501 |
| DATABID | 433 PENN ST | NEWTOWN | PA | 18940 | (888) 929-3282 | (888) 929-9293 |
| DRIVE SOURCE | 7900 DURAND AVE. BLDG 31 | STURTEVANT | WI | 53177 | (262) 331-9039 | (262) 554-7977 |
| DRYDON EQUIPMENT INC | 2445 WESTFIELD DR, STE 100 | ELGIN | IL | 60124-7840 | (224) 629-4060 | (224) 629-4061 |
| ENTERPRISE CODING SOLUTIONS LLC | 509 E PRAIRIE AVE | LOMBARD | IL | 60148 | (773) 877-9524 | (000) 000-0000 |
| ENVIROBIDNET.COM | 24123 PEACHLAND BLVD C-4 310 | PORT CHARLOTTE | FL | 33954 | (888) 888-0900 | 999-999-9999 |
| EPLAN ONLINE PLANROOM | 1400 FORUM BLVD, STE 7B | COLUMBIA | IL | 65203 | (573) 447-7130 | (573) 355-5405 |
| FLEX-CLEAN, C/O ELAM CO | 1400 RENAISSANCE DR, STE 403 | PARK RIDGE | IL | 60068 | (847) 823-5400 | (847) 823-5455 |
| FLOW-TECHNICS INC | 181 ONTARIO ST | FRANKFORT | IL | 60423 | (815) 277-2600 | (815) 534-5311 |
| FOUNDATION MECHANICS LLC | 8604 W CATALPA AVE, STE 907 | CHICAGO | IL | 60656 | (773) 234-3087 | (815) 301-3738 |
| GARCES CONTRACTOR LLC | 5423 W DIVISION | CHICAGO | IL | 60651 | (773) 626-6468 | (000) 000-0000 |
| GASVODA & ASSOCIATES INC | 1530 HUNTINGTON DR | CALUMET CITY | IL | 60409 | (708) 891-4400 | (312) 894-1138 |
| GLOBAL DATA SPECIALISTS | 1815 W 1ST AVE, #110 | MESA | AZ | 85202 | (480) 461-3401 | (480) 461-3401 |
| GMES LLC | 1391 E BOONE | COLUMBIA | IL | 65202 | (573) 722-2120 | (573) 722-2120 |
| GRAYBAR ELECTRIC CO | ONE PIERCE PL, STE 800 | ITASCA | IL | 60143 | (630) 461-6914 | (630) 671-6000 |
| HELM ELECTRICAL SERVICES INC | 5303 9TH AVE | COUNTRYSIDE | IL | 60525 | (708) 579-1000 | (999) 999-9999 |
| 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 |
| INTEGRATED DEMOLITION SERVICE LLC | 636 W RICHTON RD | CRETE | IL | 60417 | (708) 369-7508 | (999) 999-9999 |
| INTEGRATED ENVIRONMENTAL | 1333 BURR RIDGE PKWY, STE 200 | BURR RIDGE | IL | 60527 | (708) 926-9588 | (708) 926-9251 |
| 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 |
| KIEWIT INFRASTRUCTURE CO | TWO PIERCE PL, STE 1600 | ITASCA | IL | 60143 | (773) 458-1250 | (999) 999-9999 |
| 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 |
| LAI, LLC dba LAI, LTD | 5400 NEWPORT DR, STE 10 | ROLLING MEADOWS | IL | 60008 | (847) 392-0990 | (847) 392-1095 |
| MAMAN CORP | 1055 ARTHUR AVE | ELK GROVE VILLAGE | IL | 60007 | (847) 812-1745 | (847) 358-2682 |
| MARTIN MECHANICAL CORP | 474 KENNEDY AVE | SCHERERVILLE | IN | 46375 | (219) 322-7333 | (219) 322-7337 |
| MIDWEST INJECTION | 1621 MCCABE LN | CASCADE | IA | 52033 | (563) 590-0878 | (563) 852-7125 |
| MUNICIPAL AND CONTRACTORS SEALING | 7740 REINHOLD DR | CINCINNATI | OH | 45237 | (513) 482-3300 | (513) 482-3300 |
| NKP METALS LLC | 3040 W CARROLL AVE | CHICAGO | IL | 60612 | (715) 220-8478 | (715) 220-8478 |
| NORTH AMERICA PROCUREMENT COUNCIL | P O BOX 40445 | GRAND JUNCTION | CO | 81504 | (302) 450-1923 | (302) 450-1925 |
| ORNELAS CONSTRUCTION COMPANY | 12520 W HORSESHOE DR | NEW LENOX | IL | 60451 | (815) 462-7600 | (815) 462-7601 |
| PETERSON AND MATZ, INC. | 757 S 8TH ST | WEST DUNDEE | IL | 60118 | (847) 844-4405 | (847) 844-4409 |
| POWERS & SONS CONSTRUCTION CO | 2636 W 15TH AVE | GARY | IN | 46404-2195 | (219) 949-3100 | (219) 949-5906 |
| PULLMAN SST, INC | 280 W JEFFERSON AVE | TRENTON | NJ | 48144 | (734) 282-7760 | (734) 282-3801 |
| PWXPRESS | 1900 COFFEEPORT RD | JACKSONVILLE | FL | 32208 | (408) 676-8941 | (408) 676-8942 |
| SCHNEIDER ELECTRIC USA | ONE BOSTON PLACE, STE 2700 | BOSTON | MA | 02108 | (314) 330-7807 | (999) 999-9999 |
| SHERIDAN PLUMBING & SEWER INC | 6754 W 74TH ST | BEDFORD PARK | IL | 60638 | (708) 475-7100 | (708) 475-7138 |
| SMARTPROCURE INC | 700 W HILLSBORO BLVD, STE 4-100 | DEERFIELD BEACH | FL | 33441 | (888) 998-8675 | (954) 399-7067 |
| SOUTHERN CARLSON | 2143 INTERNATIONAL PKWY, STE 600 | WOODRIDGE | IL | 60517 | (224) 548-1357 | (630) 215-3252 |
| SRN TESTING SERVICES | 2258 SOUTHWIND BLVD | BARTLETT | IL | 60103 | (630) 503-5002 | (630) 503-5002 |
| STEEL SERVICES ENTERPRISES INC | 17500 S PAXTON AVE | LANSING | IL | 60438 | (847) 226-4533 | (708) 418-1639 |
| SULLWOOD INC | 1240 N HOLMAN AVE | CHICAGO | IL | 60651 | (312) 810-8757 | (999) 999-9999 |
| SUNRISE ELECTRIC SUPPLY INC | 130 S ADDISON RD | ADDISION | IL | 60101 | (630) 543-1111 | (630) 543-1678 |
| VALDES ENGINEERING CO | 100 W 22ND ST, STE 185 | LOMBARD | IL | 60148-4883 | (630) 678-2804 | (630) 792-1986 |
| VICTAULIC | 4901 KESSLERSVILLE RD | EASTON | PA | 18040 | (616) 450-6358 | (999) 999-9999 |
| WILLIAM T CONNELLY INC dba | 476 BRIGHTON DR | BLOOMINGDALE | IL | 60108 | (630) 543-9059 | (630) 543-9077 |
| WUNDERLICH-MALEC | 937 NATIONAL AVENUE | ADDISON | IL | 60101 | (630) 827-0200 | (630) 827-0208 |
| XYLEM WATER SOLUTIONS USA, INC | 9661 194TH ST | MOKENA | IL | 60448 | (708) 889-1560 | (708) 342-0491 |