| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| ACQUA CONTRACTORS CORPORATION | 551 S IL ROUTE 83 | ELMHURST | IL | 60126 | (630) 359-4648 | (630) 359-4971 |
| AIRYS INC | 21825 CHERRY HILL ROAD | JOLIET | IL | 60433 | (708) 429-0660 | (708) 729-0795 |
| BENCHMARK CONSTRUCTION CO INC | 2260 SOUTHWIND BLVD | BARTLETT | IL | 60103 | (630) 497-1700 | (630) 497-1737 |
| BIDNET | 20A RAILROAD AVE | ALBANY | NY | 12205 | (800) 677-1997 | (518) 438-0599 |
| BLACK & VEATCH CORPORATION | 180 N WACKER DR, STE 550 | CHICAGO | IL | 60606 | (312) 683-7850 | (312) 346-4781 |
| BROADWAY ELECTRIC INC | 831 OAKTON | ELK GROVE VILLAGE | IL | 60007-1904 | (847) 593-0001 | (847) 593-0004 |
| C CORONA CONSTRUCTION, LTD | 953 WILSHIRE DR | WHEELING | IL | 60090 | (224) 265-3019 | 999-999-9999 |
| CARYLON CORP | 2500 W ARTHINGTON ST | CHICAGO | IL | 60612-4108 | (312) 666-7700 | (312) 666-5810 |
| CATHODIC PROTECTION MGMT INC | 39W960 MIDAN DR | ELBURN | IL | 60119 | (630) 313-5784 | (630) 313-5788 |
| CHANNELINE INTERNATIONAL | 79A BRUNSWICK BLVD | DOLLARD DES ORMEAUX | OH | 45679 | (514) 242-4495 | (999) 999-9999 |
| CONSTRUCT CONNECT | 30 TECHNOLOGY PKWY S, STE 100 | NORCROSS | GA | 30092 | (800) 364-2059 | (866) 570-8187 |
| DATABID | 433 PENN ST | NEWTOWN | PA | 18940 | (888) 929-3282 | (888) 929-9293 |
| EPLAN ONLINE PLANROOM | 1400 FORUM BLVD, STE 7B | COLUMBIA | IL | 65203 | (573) 447-7130 | (573) 355-5405 |
| EXP US SERVICES INC | 205 N MICHIGAN AVE, STE 3600 | CHICAGO | IL | 60601 | (312) 616-0000 | (312) 616-6069 |
| FH PASCHEN, SN NIELSEN & | 5515 N EAST RIVER RD | CHICAGO | IL | 60656-1113 | (773) 444-3474 | (773) 693-0064 |
| FORSGREN CONSTRUCTION CO LLC | 2335 SOUTH POINTE WAY | SAINT JOSEPH | MI | 49085 | (269) 281-7423 | (616) 453-4985 |
| GARCES CONTRACTOR LLC | 5423 W DIVISION | CHICAGO | IL | 60651 | (773) 626-6468 | (000) 000-0000 |
| GRANITE CONSTRUCTION CO | 1011 E TOUHY AVE, STE 500 | DES PLAINES | IL | 60018 | (847) 919-8200 | (866) 736-9487 |
| HOERR CONSTRUCTION INC | 1416 COUNTY ROAD 200 N | GOODFIELD | IL | 61742 | (309) 691-6653 | 999-999-9999 |
| IHC CONSTRUCTION CO LLC | 385 AIRPORT RD, STE 100 | ELGIN | IL | 60123 | (847) 742-1516 | (847) 742-6610 |
| INLINER SOLUTIONS LLC | 5031 W 66TH ST | BEDFORD PARK | IL | 60638 | (708) 774-7799 | (708) 575-4215 |
| INSITUFORM TECHNOLOGIES USA LLC | 580 GODDARD AVE | CHESTERFIELD | MO | 63005 | (636) 530-8000 | (636) 530-8701 |
| INTEGRATED ENVIRONMENTAL | 1333 BURR RIDGE PKWY, SUITE 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 |
| JUDLAU CONTRACTING INC | 1011 WARRENVILLE RD, STE 475 | LISLE | IL | 60532 | (718) 554-2320 | (331) 777-5771 |
| KENNY CONSTRUCTION COMPANY | 2215 SANDERS RD, STE 400 | NORTHBROOK | IL | 60062 | (847) 309-1191 | (847) 272-5930 |
| KIM CONSTRUCTION CO INC | 3142 HOLEMAN, PO BOX 276 | STEGER | IL | 60475 | (708) 754-1181 | (708) 754-1183 |
| LEGAL VIDEO SERVICES INC | 609 E LAKE SHORE DR | TOWER LAKES | IL | 60010 | (312) 551-0595 | (312) 551-0596 |
| MICHELS TRENCHLESS INC | 817 MAIN ST, PO BOX 128 | BROWNSVILLE | WI | 53006 | (920) 924-4300 | (999) 999-9999 |
| MIDWEST MOLE INC | 6814 W 350 N | GREENFIELD | IN | 46140 | (317) 545-1335 | (317) 545-1558 |
| MIXONSITE LLC | 1501 ABBOTT CT | BUFFALO GROVE | IL | 60089 | (847) 415-9601 | (847) 478-0048 |
| MUNICIPAL AND CONTRACTORS SEALING | 7740 REINHOLD DR | CINCINNATI | OH | 45237 | (513) 482-3300 | (513) 482-3300 |
| NATIONAL POWER RODDING CORPORATION | 2500 W ARTHINGTON ST | CHICAGO | IL | 60612-4108 | (312) 666-7700 | (312) 666-5810 |
| NATIONAL TRENCH SAFETY INC | 260 N SAM HOUSTON PKWY E, SUITE 200 | HOUSTON | TX | 77060 | (832) 200-0988 | (832) 200-0988 |
| NORTH AMERICA PROCUREMENT COUNCIL | P O BOX 40445 | GRAND JUNCTION | CO | 81504 | (302) 450-1923 | (302) 450-1925 |
| NOVASPECT INC | 1124 TOWER RD | SCHAUMBURG | IL | 60173 | (708) 362-0285 | (847) 885-8200 |
| PIPE VIEW LLC dba | 13190 S FM 730 | AZLE | TX | 76020 | (312) 533-0744 | (815) 600-8247 |
| PULLMAN SST, INC | 280 W JEFFERSON AVE | TRENTON | NJ | 48144 | (734) 282-7760 | (734) 282-3801 |
| RESINATING LLC | 2417 WEAVER STREET | FORT WORTH | TX | 76117 | (203) 820-1043 | (817) 838-6789 |
| REYES GROUP LTD | 15515 S CRAWFORD AVE | MARKHAM | IL | 60428 | (708) 596-7100 | (708) 596-7184 |
| SAK CONSTRUCTION LLC | 864 HOFF RD | OFALLON | MO | 63366 | (636) 385-1031 | (636) 385-1131 |
| SHERIDAN PLUMBING & SEWER INC | 6754 W 74TH ST | BEDFORD PARK | IL | 60638 | (708) 475-7100 | (708) 475-7138 |
| SIEMENS INDUSTRY INC | 1701 GOLF ROAD, STE 3-500 | ROLLING MEADOWS | IL | 60008 | (847) 803-2700 | (847) 803-2733 |
| SMARTPROCURE INC | 700 W HILLSBORO BLVD, STE 4-100 | DEERFIELD BEACH | FL | 33441 | (888) 998-8675 | (954) 399-7067 |
| SPINIELLO COMPANIES | 354 EISENHOWER PKWY # 1300 | LIVINGSTON | NJ | 07039 | (973) 808-8383 | (973) 860-2900 |
| STRUCTURAL TECHNOLOGIES | 955 SORENG AVE, STE 200 | SCHILLER PARK | IL | 60176 | (301) 310-5060 | (714) 897-0163 |
| TSI COMMERCIAL FLOOR COVERING | 8200 W 185TH STREET, STE O | TINLEY PARK | IL | 60487 | (708) 870-3407 | (708) 263-0159 |
| US INFRA REHAB SERVICES | 9210 ARBORETUM PKWY, STE 150 | RICHMOND | VA | 23236 | (740) 707-1991 | (804) 482-3764 |
| US PIPELINING | 1100 WOOD LANE | LANGHORNE | PA | 19067 | (215) 702-9100 | (215) 702-9214 |
| USA-FORM INC | 3N775 POWIS RD | WEST CHICAGO | IL | 60185 | (630) 513-6046 | (999) 999-9999 |
| VALOR CONSTRUCTION SERVICES INC | 110 W WOODSTOCK ST | CRYSTAL LAKE | IL | 60014 | (219) 306-2558 | (219) 306-2558 |
| VISU-SEWER CLEAN OF IL | 9014 S THOMAS AVE | BRIDGEVIEW | IL | 60455 | (708) 237-0340 | (708) 237-0360 |